<Page>

                                    FORM 6-K/A

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                        REPORT OF FOREIGN PRIVATE ISSUER

                      PURSUANT TO RULE 13a-16 OR 15d-16 OF

                       THE SECURITIES EXCHANGE ACT OF 1934

For the month of:  MAY 23, 2001
                   ------------

                                  [TRICOM LOGO]

                                  TRICOM, S.A.
                 (Translation of registrant's name into English)

         AVENIDA LOPE DE VEGA NO. 95, SANTO DOMINGO, DOMINICAN REPUBLIC
                    (Address of principal executives offices)

     Indicate by check mark whether the registrant files or will file annual
reports under cover Form 20-F or Form 40-F.

                    Form 20-F     X                    Form 40-F
                                -----                             ------

     Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

                    Yes                                No  X
                        ------                            ----

     If "Yes" is marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b): 82- ___________________

<Page>

                                  TRICOM, S.A.

                                QUARTERLY REPORT

                                     FOR THE

                                  FIRST QUARTER

                                      ENDED

                                 MARCH 31, 2001

<Page>

                                TABLE OF CONTENTS

<Table>
                                                                         
     GENERAL INTRODUCTION....................................................1
        ITEM 1. FINANCIAL STATEMENTS.........................................2
        ITEM 2. INFORMATION ON THE COMPANY...................................7
        ITEM 3. MANAGEMENT'S DISCUSSION AND ANALYSIS OF RESULTS OF
                OPERATIONS AND FINANCIAL CONDITION..........................11
        ITEM 4. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK..16

     PART II OTHER INFORMATION..............................................17
        ITEM 1. LEGAL PROCEEDINGS...........................................17
        ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS...................18
        ITEM 3. DEFAULTS UPON SENIOR SECURITIES.............................18
        ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.........18
        ITEM 5. OTHER INFORMATION...........................................18
        ITEM 6. EXHIBITS AND REPORTS ON FORM 20-F AND FORM 6-K..............18
</Table>

                                        i
<Page>

                              GENERAL INTRODUCTION

     UNLESS THE CONTEXT INDICATES OTHERWISE, ALL REFERENCES TO (i) THE "COMPANY"
OR "TRICOM" REFER TO TRICOM, S.A. AND ITS CONSOLIDATED SUBSIDIARIES AND THEIR
RESPECTIVE OPERATIONS, AND INCLUDE TRICOM'S PREDECESSORS, AND (ii) "GFN" REFERS
TO GFN CORPORATION LTD. AND ITS DIRECT AND INDIRECT SUBSIDIARIES, OTHER THAN THE
COMPANY AND ITS SUBSIDIARIES, AND INCLUDE GFN'S PREDECESSORS.

PRESENTATION OF CERTAIN FINANCIAL INFORMATION

     The Company prepares its consolidated financial statements in conformity
with generally accepted accounting principles in the United States. The Company
adopted the United States dollar as its functional currency effective January 1,
1997.

     In this Quarterly Report references to "$," "US$" or "U.S. dollars" are to
United States dollars, and references to "Dominican pesos" or "RD$" are to
Dominican pesos. This Quarterly Report contains translations of certain
Dominican peso amounts into U.S. dollars at specified rates solely for the
convenience of the reader. These translations should not be construed as
representations that the Dominican peso amounts actually represent such U.S.
dollar amounts or could be converted into U.S. dollars at the rate indicated.
The average of prices of one U.S. dollar quoted by certain private commercial
banks (the "Private Market Rate") as reported by Banco Central de la Republica
Dominicana (the "Central Bank") on March 30, 2001 was RD$16.89 = US$1.00, the
closest date of the most recent financial information included in this Quarterly
Report. The Federal Reserve Bank of New York does not report a noon buying rate
for Dominican pesos. On May 16, 2001, the Private Market Rate was RD$16.84
US$1.00.

FORWARD-LOOKING STATEMENTS

     The statements contained in this Quarterly Report, which are not historical
facts, are forward-looking statements that involve risks and uncertainties.
Management cautions the reader that these forward-looking statements are only
predictions; actual events or results may differ materially as a result of risks
facing the Company. Such risks include, but are not limited to, the following
factors: competition; declining rates for international long distance traffic;
reliance on resellers; our inability to minimize credit risks; customer churn;
rapid technological change; rejection of our concession agreement in the
Dominican Republic; cellular fraud; our ability to implement our business plan
on schedule, including our Central American strategy; social, political and
economic conditions in our existing and target markets; our significant capital
expenditure and working capital requirements and our need to finance such
expenditures; the effect of our indebtedness on our ability to fund expansion
and remain competitive and of restrictions contained in such indebtedness;
concerns about health risks associated with wireless equipment; our inability to
manage effectively our rapid expansion; our inability to obtain licenses or
concessions in markets outside the Dominican Republic; the continued growth of
the Dominican and Central American economies, demand for telecommunication
services in the Dominican Republic and Central America and moderation of
inflation; and the continuation of a favorable political, economic and
regulatory environment in each of the Dominican Republic and Central America.

                                        1
<Page>

                                     PART I
                              FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

TRICOM, S.A. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(IN US$)

<Table>
<Caption>
                                                 December 31,       March 31,
                                                -------------      ----------
                                                    2000              2001
                          ASSETS                                   (Unaudited)
                          ------

                                                            
Current assets:
    Cash on hand and in banks                   $  18,199,552      13,657,922
    Accounts receivable:
       Customers                                   21,970,677      20,750,125
       Carriers                                     8,729,886       7,240,842
       Related parties                              1,663,396         623,775
       Officers and employees                         556,577         476,116
       Other                                        1,601,119         458,112
                                                -------------     -----------
                                                   34,521,655      29,548,970
       Allowance for doubtful accounts             (2,394,903)     (2,341,453)
                                                -------------     -----------
           Accounts receivable, net                32,126,752      27,207,517

    Inventories, net                                9,541,093      10,040,928
    Prepaid expenses                                7,947,531       5,017,969
    Deferred income taxes                             801,008         990,826
                                                -------------     -----------
       Total current assets                        68,615,936      56,915,162
                                                -------------     -----------

Investments                                         3,289,459       3,606,178
Property and equipment, net                       586,223,900     607,815,079
Other assets at cost, net of amortization          24,310,564      26,549,170
                                                -------------     -----------
                                                $ 682,439,859     694,885,589
                                                =============     ===========
</Table>

                                      - 2 -
<Page>

TRICOM, S.A. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (CONT.)
(IN US$)

<Table>
<Caption>
                                                       December 31,         March 31,
                                                       ------------         ---------
                                                           2000                2001
                                                           ----                ----
        LIABILITIES AND STOCKHOLDERS' EQUITY                                (UNAUDITED)
        ------------------------------------

                                                                      
Current liabilities:
    Notes payable:
      Borrowed funds - banks                             82,131,865         100,395,742
      Borrowed funds - related parties                   31,410,612          28,267,123
      Current portion of long-term debt                   3,213,939           2,639,637
                                                        -----------         -----------
                                                        116,756,416         131,302,502
                                                        ===========         ===========

    Current portion of capital leases                     5,308,310           4,990,644

    Accounts payable:
      Carriers                                           13,835,276          10,978,399
      Related parties                                     2,093,385             106,602
      Suppliers                                          21,653,727          28,176,371
      Other                                                 242,582             457,623
                                                        -----------         -----------
                                                         37,824,970          39,718,995

    Other liabilities                                    19,990,490          19,269,069
    Accrued expenses                                     14,035,182          10,822,890

     Total current liabilities                          193,915,368         206,104,100
                                                        ===========         ===========

Reserve for severance indemnities                             9,727              10,584
Deferred income tax                                         974,867           1,097,546
Capital leases, excluding current potion                 15,520,965          14,655,409
Long-term debt, excluding current portion               261,222,759         263,937,534
                                                        -----------         -----------

     Total liabilities                                  471,643,686         485,805,173
                                                        ===========         ===========

Shareholders' equity
    Class A Common Stock at par value RD$10:
    Authorized 55,000,000 shares; 9,700,000
    shares issued at December 31, 2000 and
    March 31, 2001                                        6,210,025           6,210,025
    Class B Stock at par value RD$10:
    Authorized 25,000,000 shares at
    December 31, 2000 and March 31, 2001; 19,144,544
    issued at December 31, 2000 and March 31, 2001       12,595,095          12,595,095
    Additional paid-in-capital                          159,981,808         160,254,547
    Retained earnings                                    34,033,002          32,044,506
    Other comprehensive income-foreign
    currency translation                                 (2,023,757)         (2,023,757)
                                                        -----------         -----------

     Shareholders equity, net                           210,796,173         209,080,416
                                                        682,439,859         694,885,589
                                                        ===========         ===========
</Table>

                                      - 3 -
<Page>

TRICOM, S.A. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS
THREE MONTH PERIOD ENDED MARCH 31, 2000 AND 2001

<Table>
<Caption>
                                                                 2000             2001
                                                                 ----             ----
         OPERATING REVENUES:                                 (UNAUDITED)       (UNAUDITED)
         -------------------

                                                                          
   Toll                                                        6,551,984         7,466,507
   International settlement                                   17,992,204        19,660,445
   Local service                                              12,194,025        16,670,052
   Cellular                                                    8,709,247         8,853,455
   Paging                                                        475,013           309,774
   Sale of equipment                                           1,119,534         1,442,216
   Installation and activation fees                            3,151,672         2,998,051
   Other                                                          36,056            48,878
                                                             -----------        ----------

   TOTAL OPERATING REVENUES                                   50,229,735        57,449,378

OPERATING COSTS:
   Satellite connections and carrier (excluding
     network depreciation expense of $6,067,401
     and $9,968,894 for the three month period
     ended March 31, 2000 and 2001, respectively,
     included below)                                          14,139,422        15,992,002
   Network depreciation expense                                6,067,401         9,968,894
   Expense in lieu of income taxes                             2,881,694         3,318,981
   General and administrative expenses                        13,779,370        16,868,766
   Cost of Equipment sold                                        692,925         1,217,591
   Amortization expense                                                -           156,583
   Non-network depreciation expense                            1,485,333         2,101,978
   Other                                                         355,725           439,980
                                                             -----------        ----------

     TOTAL OPERATING COSTS                                    39,401,870        50,064,775

     OPERATING INCOME                                         10,827,865         7,384,603

OTHER INCOME (EXPENSES):
   Interest expense                                           (7,979,096)       (9,712,593)
   Interest income                                               203,888           287,522
   Foreign exchange gain (loss)                                 (350,762)         (247,815)
   Other, net                                                    (46,156)          283,648
                                                             -----------        ----------

     OTHER EXPENSES, NET                                      (8,172,126)       (9,389,238)
                                                             -----------        ----------

     EARNINGS (LOSS) BEFORE INCOME TAXES AND
CUMULATIVE EFFECT OF ACOUNTING CHANGE                          2,655,739        (2,004,635)

  Income taxes, net                                            (130,250)            16,139

    EARNINGS (LOSS) BEFORE CUMULATIVE EFFECT OF
ACCOUNTING CHANGE                                              2,525,489        (1,988,496)
   Cumulative effect of accounting change for
installation and activation revenues (note 2)                (16,452,799)                -
                                                             -----------        ----------

    NET LOSS                                                 (13,927,310)       (1,988,496)
                                                             ===========        ==========

EARNINGS (LOSS) PER SHARE:
    Earnings before cumulative effect of account change             0.10             (0.07)
    Cumulative effect of change in accounting                      (0.66)                -
                                                             -----------        ----------
    Net loss per share                                             (0.56)            (0.07)
                                                             ===========        ==========
    AVERAGE NUMBER OF COMMON SHARES USED IN CALCULATION      24,8844,544        28,844,544
                                                             ===========        ==========
</Table>

                                      - 4 -
<Page>

TRICOM, S.A. AND SUBSIDIARIES
CONSOLIDATED STATEMENT OF CASH FLOWS
(IN US$)

<Table>
<Caption>
                                                                        THREE MONTH PERIOD ENDED
                                                                     MARCH 31,           MARCH 31,
                                                                  --------------       ------------
                                                                       2000               2001
                                                                    (UNAUDITED)        (UNAUDITED)

                                                                                   
Cash flows from operating activities:
       Net Loss                                                   $  (13,927,310)        (1,988,496)
   Adjustments to reconcile net earnings (loss) to net cash
provided by operating activities:
       Allowance for doubtful accounts                                   185,803            518,737
       Deferred income tax (benefit) provision                          (130,250)           (16,139)
       Depreciation and amortization                                   7,552,734         12,227,455
       Cumulative effect of accounting change for
installation and activation revenues (note 2)                         16,452,799                  -
       Non-cash consulting expenses                                            -            272,739
       Expense for severance indemnities                                  48,707            280,435
   Net changes in assets and liabilities:
       Accounts and notes receivable                                  (2,939,446)         4,400,498
       Inventories                                                      (914,357)          (499,835)
       Long-term accounts receivable                                      22,619                  -
       Other assets                                                     (433,583)        (2,395,189)
       Prepaid expenses                                                  837,304          2,929,562
       Accounts payable                                               (8,560,921)         1,894,025
       Accrued expenses                                               (2,524,768)        (3,212,292)
       Other liabilities                                               1,207,344           (772,421)
       Reserve for severance indemnities                                 (56,354)          (279,578)
                                                                  --------------        -----------

Total adjustments                                                     10,747,631         15,347,997
                                                                  --------------        -----------

Net cash provided by (used in) operating activities                   (3,179,679)        13,359,501
                                                                  ==============        ===========

Cash flows from investing activities:
   Acquisition (cancellation) of investments                            (116,395)          (316,719)
   Acquisition of property and equipment                             (20,642,255)       (33,662,051)
                                                                  --------------        -----------

       Net cash used in investing activities                         (20,758,650)       (33,978,770)

Cash flows from financing activities:
   Borrowed funds from banks                                          10,542,562        189,263,877
   Borrowed funds to related parties                                  13,667,361         (3,143,489)
   Payments of long-term debt                                            (41,835)          (574,302)
   Capital lease payments                                               (907,410)        (1,183,222)
   Proceeds from issuance of long-term debt                                   -           2,714,775
                                                                  --------------        -----------

       Net cash provided by financing activities                      23,260,678         16,077,639

Net increase in cash and cash equivalents                               (677,651)        (4,541,630)

       Cash and cash equivalents at beginning of the period           13,459,566         18,199,552

       Cash and cash equivalents at end of period                 $   12,781,915         13,657,922
                                                                  ==============        ===========

Supplemental disclosure of cash flow information:
   Interest paid, net of capitalization                           $    7,979,096          9,712,592
   Capital lease obligations incurred                                  2,979,096                  -
   Expense in lieu of income taxes paid                                2,881,694          3,318,981
                                                                  ==============        ===========
</Table>

                                      - 5 -
<Page>

TRICOM, S.A. AND SUBSIDIARIES
NOTES TO FINANCIAL STATEMENTS

NOTE 1 - BASIS OF PRESENTATION

     The Company considers that all adjustments (all of which are normal
recurring accruals) necessary for a fair statement of financial position and
results of operations for these periods have been made; however, results for
such interim periods are subject to audit. Results for such interim periods are
not necessarily indicative of results for a full year.

NOTE 2 - ADOPTION OF SAB-101

     Effective January 1, 2000, the Company adopted the Staff Accounting
Bulletin (SAB 101) "Revenue Recognition" issued by the Securities and Exchange
Commission (SEC). The adoption of SAB 101 resulted in a change in the revenue
recognition policy regarding installation and activation revenues. Such change
required the Company to recognize net revenues from installation and activation
over the average service life based on the experience of the Company (35
months). This change in the revenue recognition method required the Company to
recognize a cumulative effect of accounting change in net revenues from
installations and activations for $16,452,799, which is presented as a separate
item in the accompanying consolidated statements of operations.

                                      - 6 -
<Page>

ITEM 2. INFORMATION ON THE COMPANY

COMPANY OVERVIEW

     TRICOM is a leading integrated communications service provider in the
Dominican Republic. Through the country's only network providing 100% digital
local service, a wireless network covering approximately 85% of the population
and our submarine fiber optic cable systems, we offer local, long distance,
mobile, Internet and broadband data transmission services. Through TRICOM USA,
we own switching facilities in New York and Puerto Rico, providing us with
end-to-end connectivity, and are one of the few foreign long distance carriers
that has a United States licensed subsidiary.

SERVICE OFFERINGS

     Our service offerings include:

- -    Local service;

- -    Mobile services;

- -    International long distance; and

- -    Broadband data transmission and Internet.


LOCAL SERVICE

     We are a competitive local exchange carrier and had 156,327 local access
lines in service at March 31, 2000. Our local access network covers areas with
approximately 85% of the population of Santo Domingo, Santiago and nine
additional cities.

     All of our basic telephone service customers have access to a range of
value-added services, including call forwarding, three-way calling, call
waiting, caller ID and voicemail applications. In addition to local service, we
provide direct-dialed, collect and operator-assisted international and domestic
long distance services and Internet access to our residential and corporate
customers.

     We offer our customers broad flexibility in assembling customized packages
of services, which provide our customers with cost savings and enhanced control
over their consumption of telephone services. Customers may choose from a menu
of services, including domestic and international long distance services, local
service and value-added services. They also may bundle their local access
service with cellular or PCS, paging and Internet services. Service packages
permit customers to preset their monthly bills based upon, for example, local
service minutes as well as long distance minutes and specified destinations.
Customers are responsible for paying for usage levels in excess of preset
package amounts, at regular per minute rates. We believe that providing
customers with such budgeting capability increases consumer confidence in using
telecommunications services, consequently allowing for increased service
penetration, higher levels of customer satisfaction and lower incidence of
delinquent payments.

     We have accelerated our local access network expansion program by deploying
a wireless local loop. The wireless local loop consists of receivers, that are
installed at a customer's house, and digital switches. The receiver is connected
by cable to a standard telephone jack that connects to a standard telephone. The
receiver is powered by the customer's home power supply and also contains a
battery that allows operation to continue for up to approximately 24 hours of
standby and eight hours of talk time in the event of a power outage. The
wireless local loop offers voice quality as clear as telephones connected by
wirelines.

                                      - 7 -
<Page>

     We also sell fully integrated systems and components for both turnkey
systems and private telephone networks used within enterprises. We are an
exclusive distributor in the Dominican Republic for Mitel and Comdial equipment,
two leading manufacturers of private branch exchanges and key telephone systems.
We are also a leading provider of computer telephony integration systems in the
Dominican Republic.


MOBILE SERVICES

     Our mobile network covers approximately 85% of the Dominican Republic's
population. We currently offer both cellular and PCS service. Based upon data
published by the Instituto Dominicano de las Telecomunicaciones, or INDOTEL, the
Dominican agency that regulates telecommunications, there were approximately
705,431 analog and PCS cellular subscribers in the Dominican Republic at
December 31, 2000. At March 31, 2001, we had 286,506 cellular and PCS
subscribers, representing approximately 40% of the Dominican mobile telephony
market.

     The number of our cellular and PCS subscribers grew by 62% during 2000. We
attribute a substantial portion of this growth to our prepaid cellular and PCS
card, the Amigo card. At March 31, 2001, prepaid cellular and PCS subscribers
accounted for 267,462, or 93%, of our total cellular and PCS subscribers in the
Dominican Republic. Our Amigo card program has expanded our cellular and PCS
subscriber base because it offers cellular and PCS service to individuals who
would not satisfy our current credit policies and because it appeals to
customers who prefer to budget their cellular and PCS telephone spending.

     We have offered PCS service since April 1999. This technology provides for
added security and privacy compared with traditional analog systems, and it also
offers greater capacity. PCS customers are able to receive all of the benefits
related to a digital service, including digital messaging, caller ID and
voicemail. Our PCS network covers areas with approximately 66% of the population
in the Dominican Republic and is less extensive than our analog network. We
offer a dual-band service, allowing customers to use seamlessly their mobile
phones nationwide over both digital and analog networks.

     We also have entered into arrangements with major consumer electronics
retailers and a network of independent cellular and PCS dealers to offer our
cellular and PCS services in conjunction with their sale of handsets. As a
result of our arrangements with major electronics retailers for the sale by them
of handsets in conjunction with subscriptions for our services, we sold handsets
to less than 15% of our new subscribers in 2000. We do not subsidize or provide
credit on the sale of cellular and PCS handsets.

     We have provided paging services since April 1995. At March 31, 2001, we
provided paging services to 20,277 subscribers, representing approximately 16.1%
of the Dominican paging market. In 1999 we stopped soliciting new paging
subscribers. We believe that the success of our prepaid cellular and PCS program
has contributed to the decline of paging as a significant part of our business
because customers have replaced paging services with prepaid cellular services.

INTERNATIONAL LONG DISTANCE

     In the Dominican Republic, we provide international long distance services
to our local access, cellular and PCS customers. In addition, we offer prepaid
calling cards for international long distance, the Efectiva and Conexion cards
that can be used from any telephone in the Dominican Republic. We operate
telephone centers that provide access to telephone services to individual
customers who either does not have telephone services in their own homes or who
are attracted by the competitive pricing of the telephone centers. The centers
offer a wide range of telephone services, including bill payments and sales of
service in addition to long distance.

     In the United States, our subsidiary TRICOM USA provides international
carrier services primarily to resellers, which account for an increasing share
of international long distance traffic between the United States and the
Dominican Republic. We continue to expand our footprint in the United States and
throughout the region by deploying an advanced communications infrastructure. In
March 2001, we deployed our latest international gateway switch in Miami,
Florida. The new switch will reduce our cost structure by providing end-to-end
correspondence for inbound and outbound international traffic between the
Dominican Republic, Puerto Rico and

                                      - 8 -
<Page>

our facilities-based long-distance carrier operations in the United States.
At the same time, we will be able to better serve our existing customer base as
well as expand our service base throughout the United States.

     Through our telecommunications switching facilities in the United States,
we have been able to provide resellers with an alternate channel for sending
international long distance traffic. In addition, by controlling the
origination, transport and termination of international long distance traffic
between the United States and the Dominican Republic, we believe that we are
able to send and receive such traffic at a lower cost to us than by exchanging
traffic with traditional international carriers.

     Each year since the initiation of TRICOM USA's operations, we have derived
a greater percentage of international revenues from resellers. During 2000,
resellers originated approximately 45% of the international long distance
minutes from the United States to the Dominican Republic that we received.
Minutes delivered by resellers may fluctuate significantly. While we enter into
agreements with resellers, they are not required to provide to us any amount of
traffic. The price per minute charged by us to a reseller is negotiated as often
as dictated by the market. At March 31, 2001, we received traffic from
approximately 38 resellers.

     TRICOM USA also markets a number of prepaid cards to ethnic communities in
New York, New Jersey, Rhode Island, Massachusetts, Illinois, California, Saint
Thomas, Puerto Rico and Canada. Each prepaid card is assigned a unique
identification number and a face value ranging from $2 to $20. The prepaid
card's dollar balance is reduced by the cost of each call. TRICOM USA sells the
cards to distributors that resell the cards to retail outlets.


BROADBAND DATA TRANSMISSION AND INTERNET

     We provide broadband data transmission services to 119 of the 400 largest
business customers in the Dominican Republic based on assets, through several
means of delivery including fiber optic cable and digital wireless
point-to-point radio links. In addition, we provide these large customers with
data circuits Internet access, private networks and frame relay services with
branches in the different cities in the country. We recently increased
transmission capacity to provide larger bandwidths, and data services are
expected to have a strong growth with the commercial launch of both the digital
subscriber lines, or xDSLs, that provide high-bandwidth transmission of voice
and data over regular telephone lines and the very small aperture terminals, or
VSATs, relatively small satellite antennas used for high speed satellite-based
single to multiple point data transmissions, including for the internet.

     In the Dominican Republic we are the second largest Internet Service
Provider. We provide Internet connectivity to the residential and corporate
markets through traditional dial-up connections, dedicated lines and very small
aperture terminals, or VSATs, relatively small satellite antennas used for high
speed satellite-based single to multiple point data transmissions, including for
the internet, with speeds ranging from 56 kilobytes per second to 2 megabytes
per second. During 2000, we deployed our digital subscriber lines, or xDSLs,
that provide high-bandwidth transmission of voice and data over regular
telephone lines, and wireless broadband delivery solutions. Our PCS and paging
services are now fully integrated with our Internet service, offering short
messaging services, including email and digital messaging through our website,
www.tricom.net.

     In March 2000, we entered into a five-year $25 million contract with the
Dominican Republic Department of Education to provide broadbased satellite
Internet access and Intranet services to every public high school in the
Dominican Republic. We have been utilizing Intellicom's, a wholly-owned
subsidiary of SoftNet Systems, state-of-the-art content caching technology and
comprehensive family of value-added services to deliver fast and efficient
end-user access to the Internet. Intellicom is a wholly owned subsidiary of
SoftNet Systems.


CENTRAL AMERICA MOBILE SERVICES
STRATEGIC FOCUS

     We have targeted markets in Central America in which we intend to offer
mobile services using Motorola's iDEN technology. These services include digital
mobile telephone services, mobile dispatching, two way

                                      - 9 -
<Page>

messaging, push to talk and one to many connection. We believe that Central
America is an attractive market to target as one congruous telecommunications
region for the following reasons:

- -  First entrant provider of Motorola's iDEN services in Central America;

- -  High overall economic growth and strong demand in the wireless sector;

- -  Close intra-regional business practices; and

- -  Logical extension of our existing network

     Our objective is to provide roaming throughout the region using a unified
platform. This will allow us to achieve cost savings in network build out. Our
undersea fiber optic facilities provide connections between each of our targeted
markets and our support systems in the Dominican Republic. To date, we have
obtained rights to frequencies in El Salvador and Guatemala, and have acquired a
majority interest in a company that owns frequencies in Panama. We also will
consider offering services in two other countries, Costa Rica and Honduras.

     In April 2001, we executed an agreement to purchase a majority interest in
a Panamanian radio trunking services company, Cellular Communications of Panama,
S.A. ("Cellcom") for approximately $8.1 million. The acquisition will enable
TRICOM to provide nationwide advanced mobile radio services in Panama using
Motorola's iDEN technology. In the process, we have also acquired specialized
mobile radio frequencies covering a population of approximately 2.8 million
people and are currently deploying a digital network in Panama City and Colon,
the two largest cities in Panama, and in important commercial and transportation
corridors in other parts of the country. To date, we have invested approximately
$26 million in this deployment, primarily for the purchase of a mobile switching
office (MSO), enhanced base transceiver stations (EBTS) and site acquisition and
construction. Completion of the network build out in Panama is scheduled for the
fourth quarter of 2001.

                                     - 10 -
<Page>

ITEM 3. MANAGEMENT'S DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS AND
FINANCIAL CONDITION

REVENUE RECOGNITION

     We derive our operating revenues primarily from toll revenues,
international settlement revenues, cellular and PCS services, local services,
the sale of equipment and installations. The components of each of these
services are as follows:

     Toll revenues are amounts we receive from our customers in the Dominican
     Republic for international and domestic long distance calls, as well as
     interconnection charges received from Codetel, the incumbent local service
     provider, and other carriers, for calls that originate in or transit their
     networks but terminate in our network. Toll revenues are generated by
     residential and commercial customers, calling card users, cellular and PCS
     subscribers and retail telephone centers, and large corporate accounts.
     Toll revenues are recognized as they are billed to customers, except for
     revenues from prepaid calling cards which are recognized as the calling
     cards are used or expire.

     International revenues represent amounts recognized by us for termination
     of traffic from foreign telecommunications carriers to the Dominican
     Republic. Traffic is based on the minutes that the foreign
     telecommunications companies have terminated in the Dominican
     telecommunications network, either on our own network or on Codetel's
     network, including revenues derived from our U.S.-based international long
     distance prepaid calling cards.

     Local service revenues consist of monthly fees, local measured service and
     local measured charges for value-added services, including call forwarding,
     three-way calling, call waiting and voice mail, as well as calls made to
     cellular users under the calling-party-pays system and revenues from other
     miscellaneous local access services. Local measured service includes
     monthly phone line rental for a specified number of calls within a defined
     area, plus a charge for additional calls.

     Cellular and PCS revenues represent fees received for mobile cellular and
     PCS services, including interconnection charges for calls incoming to our
     cellular and PCS subscribers from other companies' subscribers. Cellular
     and PCS revenues do not include fees received for international long
     distance calls generated by our cellular and PCS subscribers. Cellular and
     PCS fees consist of fixed monthly fees, per minute usage charges and
     additional charges for value-added services, including call waiting, call
     forwarding, three-way calling and voicemail, and for other miscellaneous
     cellular and PCS services.

     Paging revenues consist of fixed monthly charges for nationwide service and
     use of paging equipment and activation fees. Beginning in 1999, we
     determined that paging will not play a major role in our future marketing
     programs.

     Revenues from the sale of equipment consist of sales fees for customer
     premise equipment, including private automatic branch exchanges, which are
     small versions of a phone company's central switching system often used by
     private companies, and key telephone systems, residential telephones,
     cellular and PCS handsets and paging units.

     Installation revenues consist of fees we charge for installing local access
     lines, private branch exchanges and key telephone systems as well as fees
     for activating cellular phones and PCS. Beginning on January 1, 2000, we
     have recognized these revenues over the estimated period in which, based on
     our experience, we retain such clients, approximately 35 months. In prior
     periods, we recognized these revenues when they were collected.

     Other revenues consist of revenues that are not generated from our core
     businesses, including commissions received for providing package handling
     services for a courier and commissions received for collection services for
     utility companies.

                                     - 11 -
<Page>

     The following table sets forth the percentage contribution of each category
of revenues to total operating revenues for the period indicated:

<Table>
<Caption>
                                                        THREE MONTHS
                                                            ENDED
                                                          MARCH 31,
                                                       2000       2001
                                                       ----       ----
                                                            
Toll                                                   13.0%      13.0%
International                                          35.8       34.2
Local service                                          24.3       29.0
Cellular and PCS                                       17.3       15.4
Paging                                                  0.9        0.5
Sale of equipment                                       2.2        2.5
Installation and activation fees                        6.3        5.2
Other                                                   0.1        0.1
</Table>

- ----------------

Note:  Percentages may not add up to 100% due to rounding.

     The following table sets forth certain items in the statements of
operations expressed as a percentage of total operating revenues for the period
indicated:

<Table>
<Caption>
                                                        THREE MONTHS
                                                            ENDED
                                                          MARCH 31,
                                                       2000       2001
                                                       ----       ----
                                                           
Operating costs                                        78.4%      87.1%
operating income                                       21.6       12.9
Interest expense, net                                 (15.5)     (16.4)
Other income (expenses)                               (16.3)     (16.3)
Earnings (loss) before cumulative effect of
accounting change                                       5.0       (3.5)
EBITDA                                                 42.3       39.9
</Table>


THREE MONTHS ENDED MARCH 31, 2001 COMPARED TO THE SAME PERIOD IN 2000

     OPERATING REVENUES. Our total operating revenues increased 14.4% to US$57.5
million for the three-month period ended March 31, 2001 from US$50.2 million for
the three-month period ended March 31, 2000. This growth resulted primarily from
increases in revenues generated by the Company's local service and international
business segments.

     TOLL. Toll revenues increased 14.0% to $7.5 million in the first quarter of
2001 from $6.6 million in the first quarter of 2000, primarily as a result of
higher domestic long distance traffic and increased interconnection charges
derived from the growth of our customer base. Domestic long distance minutes
increased by 20.5% to 12.6 million minutes during the first quarter of 2001 from
10.4 million minutes during the first quarter of 2000. The average price per
domestic long distance minute declined to $0.16 in the first quarter of 2001
from $0.19 in the first quarter of 2000. The increase in domestic long distance
minutes resulted from higher traffic volume from cellular and PCS subscribers
and retail telephone centers. Interconnection revenues increased to $2.0 million
in the first quarter of 2001 from $1.6 million in the first quarter of 2000, as
a result of a larger proportion of Codetel's and other carrier's traffic
terminating in our network.

     INTERNATIONAL. Our International revenues grew 9.3% to $19.7 million in the
first quarter of 2001 from $18.0 million in the first quarter of 2000. This
increase was due primarily to the growth of inbound traffic volume received from
our U.S.-based international carrier, TRICOM USA. Inbound minutes increased by
38.2% to 151.0 million minutes in the first quarter of 2001 from 109.3 million
during the first quarter of 2000. TRICOM USA accounted for 82% of our total
inbound minutes in the first quarter of 2001 compared to 62.5% in the same
period of 2000. Total international long distance minutes increased 36.3% to
160.1 million minutes in the first quarter of 2001 from 117.4 million minutes in
the first quarter of 2000.

                                     - 12 -
<Page>

     The increase in international revenues was achieved despite the continued
trend of decreasing settlement rates for traffic between the United States and
the Dominican Republic. Our average settlement rate was $0.10 per minute during
the first quarter of 2000 and $0.05 per minute during the first quarter of 2001.
International revenues in the first quarter decreased by 22% from international
revenues in the fourth quarter of 2000 as a result of the ceasing of operations
of several of our corresponding resellers during the first three months of the
year.

     LOCAL SERVICE. Local service revenues grew 36.7% to $16.7 million in the
first quarter of 2001 from $12.2 million for the first quarter of 2000. The
continued growth in the number of local lines in service resulted in increased
local service revenues for the period. In the first quarter of 2001, we added
8,015 net local access lines compared to 5,624 net local access lines added in
the first quarter of 2000. Our local service subscriber base grew to 156,327
local access lines in service at March 31, 2001 compared to 124,550 local access
lines in service at March 31, 2000. In addition, local service revenues include
Internet service revenues, which increased to $1.6 million in the first quarter
of 2001 from $203,000 in the first quarter of 2000.

     As a result of a higher number of lines in service, measured local service
revenues increased by 29.1% to $3.0 million in the first quarter of 2001 from
$2.3 million in the first quarter of 2000. Revenues from monthly fees increased
by 24.5% to $9.8 million in the first quarter of 2001 from $7.8 million in the
first quarter of 2000. Our average monthly churn rate for local service was 2.4%
in the first quarter of 2001 compared to 2.3% in the first quarter of 2000. We
calculate our average monthly churn rate by dividing the number of subscribers
disconnected during a given period by the sum of subscribers at the beginning of
each month during such period.

     CELLULAR AND PCS. Our cellular and PCS revenues increased slightly to $8.8
million in the first quarter of 2001 from $8.7 million in the first quarter of
2000. At March 31, 2001, we had 286,506 cellular and PCS subscribers compared to
190,258 at March 31, 2000. As a result of a higher average subscriber base,
airtime minutes increased 23.0% to 49.0 million minutes in the first quarter of
2001 from 39.9 million minutes in the first quarter of 2000. The average price
per airtime minute declined to $0.20 in the first quarter of 2001 from $0.24 in
the first quarter of 2000.

     We attribute the growth of our subscriber base to the continued success of
our prepaid cellular program. At March 31, 2001, prepaid customers accounted for
94% of our total subscriber base, generating approximately 68% of our total
airtime minutes and 70% of total cellular and PCS revenues in first quarter of
2001. Prepaid revenues increased by 26.1% to $6.1 million in the first quarter
of 2001 from $4.8 million in the first quarter of 2000. Our average monthly
churn rate for cellular and PCS services increased to 8.3% in the first quarter
of 2001 from 1.7% in the first quarter of 2000 reflecting primarily our decision
in the first quarter to disconnect 69,000 marginal revenue generating prepaid
customers by shortening the expiration of our prepaid cards to 30 days.

     PAGING. Paging revenues decreased 34.8% to $310,000 in the first quarter of
2001 from $475,000 in the first quarter of 2000, primarily as a result of the
company's decision to focus on having new customers move away from paging
services and into prepaid cellular services. At March 31, 2001, we had 20,277
paging subscribers compared to 26,809 paging subscribers at March 31, 2000. Our
average monthly churn rate for paging services decreased to 2.5% in the first
quarter of 2001 from 3.5% in the first quarter of 2000.

     SALE OF EQUIPMENT. Revenues from the sale and lease of equipment increased
28.8% to $1.4 million in the first quarter of 2001 from $1.1 million in the
first quarter of 2000, primarily as a result of higher sales of customer premise
equipment and cellular and PCS handsets.

     INSTALLATION AND ACTIVATION FEES. Installation revenues decreased 4.9% to
$3.0 million during the first quarter of 2001 from $3.2 million during the first
quarter of 2000. The Company added 89,512 combined gross local access lines and
cellular subscribers, the highest quarterly gross subscriber additions to date.
The decrease in installation revenues during the first quarter was due to an
aggressive promotional marketing strategy including lowered subscriber
activation fees for local and wireless services, designed to capture a
significant share of the market growth.

                                     - 13 -
<Page>

OPERATING COSTS.  Major components of operating costs are:

- -  satellite connections and carrier costs, which include amounts owed to
   foreign carriers for the use of their networks for termination of outbound
   traffic and payments for international satellite circuit leases;

- -  interconnection  costs, which are access charges paid primarily to Codetel;
   and payments for international  satellite circuit
   leases;

- -  depreciation of network equipment and leased terminal equipment,
   and non-network depreciation expense;

- -  expenses in lieu of income tax; and

- -  general and administrative expenses, which include salaries and other
   compensation to personnel, non-network depreciation, maintenance expenses,
   marketing expenses and other related costs.

     Our operating costs increased to $50.1 million in first quarter of 2001
from $39.4 million in the first quarter of 2000. These results reflect higher
network depreciation expenses resulting from the Company's capital investment
and domestic and international network expansion programs; increased general and
administrative expenses primarily from higher commissions and personnel
compensation; and increased satellite connection and carrier costs associated
with higher volumes of international traffic. As a percentage of revenues,
operating costs increased to 87.1% in the first quarter of 2001 from 78.4% in
the first quarter of 2000.

     SATELLITE CONNECTIONS AND CARRIER COSTS. Satellite connections and carrier
costs increased by 13.1% to $16.0 million in the first quarter of 2001 from
$14.1 million in the first quarter of 2000, primarily as a result of higher
interconnection and facilities costs. Interconnection costs increased by 12.3%
to $6.7 million in the first quarter of 2001 from $6.0 million in the first
quarter of 2000, the result of a higher volume of inbound traffic terminating in
Codetel's network. Facility costs increased 42.5% to $1.6 million in the first
quarter of 2001 from $1.1 million in the first quarter of 2000.

     NETWORK DEPRECIATION AND DEPRECIATION EXPENSE. Network depreciation
increased 64.3% to $10.0 million in the first quarter of 2001 from $6.1 million
in the first quarter of 2000, as a result of the Company's continued capital
investment and domestic and international network expansion programs.
Depreciation expense with respect to other fixed assets grew 41.5% to $2.1
million in the first quarter of 2001 from $1.5 million in the first quarter of
2000.

     EXPENSE IN LIEU OF INCOME TAXES. We make payments to the Dominican
government in lieu of income tax equal to 10% of gross domestic revenues, after
deducting charges for access to the local network, plus 10t of net international
revenues. Expense in lieu of income taxes also includes a tax of 2% on
international settlement revenues collected. Expense in lieu of income taxes
during the first quarter of 2001 increased by 15.2% to $3.3 million from $2.9
million in the first quarter of 2000 reflecting the increase in revenues derived
from our domestic and international businesses.

     GENERAL AND ADMINISTRATIVE. General and administrative expenses increased
22.4% to $16.9 million in the first quarter of 2001 from $13.8 million in the
first quarter of 2000. The increase in the amount of general administrative
expenses reflected the greater amount of commissions paid to wholesale
distributors of prepaid cards as a result of higher revenues from sales of the
cards in the U.S. and increased personnel costs due to a higher employee
headcount. At March 31, 2001, we had 1,677 employees compared to 1,528 employees
at March 31, 2000. As a percentage of total operating revenues, general and
administrative expenses increased to 29.4% in the first quarter of 2001 compared
to 27.4% in the first quarter of 2000.

     Commissions paid to wholesale distributors of prepaid cards grew 50.8% to
$3.7 million in the first quarter of 2001 from $2.4 million in the first quarter
of 2000, primarily as a result of the expansion of our prepaid cellular
subscriber base.

                                     - 14 -
<Page>

     COST OF EQUIPMENT SOLD AND OTHER COSTS. Cost of equipment sold, which
consists of the cost of sale of customer premise equipment, including private
branch exchanges and key telephone systems, as well as cellular and PCS
handsets, increased by 75.7% to $1.2 million in the first quarter of 2001 from
$693,000 in the first quarter of 2000. Other costs, which consist of the cost of
sale of prepaid services increased by 23.7% to $440,000 in the first quarter of
2001 from $356,000 in the first quarter of 2000.

     OPERATING INCOME. Operating income decreased to $7.4 million in the first
quarter of 2001 compared to $10.8 million in the first quarter of 2000,
primarily as a result of the sequential decrease in international revenues
during the first quarter of 2001 coupled with higher depreciation expenses
related to our local and international network expansion. Operating income as a
percentage of total operating revenues decreased to 12.9% in the first quarter
of 2001 from 21.6% in the first quarter of 2000.

     OTHER INCOME (EXPENSES). Other expenses increased to $9.4 million in the
first quarter of 2001 from $8.2 million in the first quarter of 2000 reflecting
increased interest expenses resulting from higher levels of short-term
borrowings and vendor financing, to support the Company's capital investment
program.

     NET EARNINGS (LOSS). Loss before cumulative effect or accounting change
totaled $2.0 million, or $0.07 per share, in the first quarter of 2001 compared
to earnings of $2.5 million, or $0.10 per share, in the first quarter of 2000.
Including the $16.5 million cumulative effect of accounting change for the
adoption of SAB 101, we had a net loss of $13.9 million, or $0.56 per share, in
the first quarter of 2000.

     EBITDA. Earnings before interest and other income, taxes and depreciation
and amortization increased by 7.8% to $22.9 million in the first quarter of 2001
from $21.3 million in the first quarter of 2000. We calculate earnings before
interest and other income and expenses, taxes and depreciation and amortization
prior to the deduction of payments to the government in lieu of income taxes.

LIQUIDITY AND CAPITAL RESOURCES

     Substantial capital is required to expand and operate our
telecommunications networks. For the first three months of the year, we made
capital expenditures of $33.7 million for the installation of additional local
access lines, enhancement of our cellular and PCS network in the Dominican
Republic, expansion of international facilities and other network improvements.
Expansion of international facilities included the installation of a switch in
Miami, Florida and investments related to our Central America expansion. We
currently anticipate making capital expenditures of approximately $133 million
in 2001 for increasing capacity and coverage in our local access and mobile
networks, expanding our international facilities to support increased traffic
volume, expanding our local network and other international expansion and for
the implementation of our Central American strategy, primarily in Panama. In
Central America, capital expenditures will consist of investments in a mobile
switching office in Panama and enhanced base transceiver stations and mobile
backhaul for Panama, Guatemala and El Salvador. However, the amounts to be
invested for these purposes will depend upon a number of factors, including
primarily the demand for our services.

     In addition, as we expand our operations into new areas we will be required
to support increased working capital and capital expenditure needs. We have
satisfied our working capital requirements and funded capital expenditures from
cash generated from operations, short and long-term borrowings, trade finance,
capital leases, vendor financing and equity and debt issuances. We believe our
cash generated by operations and borrowings available to us will be sufficient
to fund our expected capital expenditures through the end of 2001. We frequently
evaluate potential acquisitions and joint venture investments. Acquisitions or
investments may require us to obtain additional financing. There can be no
assurance that additional funding sources will be available to us on terms,
which we find acceptable, or at all.

     Net cash provided by operating activities was $13.4 million for the first
three months of 2001 compared to a cash deficit of $3.2 million for the first
three months of 2000. We had net accounts receivable of $27.2 million and $32.1
million at March 31, 2001 and December 31, 2000, respectively. Our indebtedness
was approximately $414.9 million at March 31, 2001, of which $200.0 million was
our 11 3/8% senior notes due 2004, $78.6 million was in long-term borrowings and
capital leases, with maturities ranging from two to six years, and $136.3
million

                                     - 15 -
<Page>

was short-term bank loans, telecommunications equipment financings,
trade financings and current portion of capital leases and of long-term debt. At
March 31, 2001, our U.S. dollar borrowings, other than the 11 3/8% senior notes
due 2004, had interest rates ranging from 8.16% per annum to 12.25% per annum,
and our peso borrowings had interest rates ranging from 24% per annum to 28% per
annum. At March 31, 2001, our U.S. dollar borrowings, other than the 11 3/8%
senior notes due 2004, totaled $199.5 million and our peso borrowings totaled
$15.4 million.

     We have credit facilities, which, in the aggregate, permit us to borrow up
to $272.4 million. At March 31, 2001, there was $214.9 million outstanding under
these facilities. We had approximately $57.5 million available for borrowing
under these facilities, of which $23.7 million was under facilities with
maturities of less than one year. At March 31, 2001, we had $82.3 million of
short-term and long-term, credit facilities with Dominican banks and
institutions and $190.1 million of U.S. dollar-denominated credit facilities
with international banks.

     At March 31, 2001, our current liabilities exceeded our current assets by
$149.1 million. This reflects our short-term borrowings in the Dominican
Republic with related companies, local and international banks. Dominican banks
lend on a short-term basis in order to negotiate interest rates should market
conditions change, without necessarily demanding the repayment of credit
facilities. It is our belief that the existence of negative working capital does
not affect adversely the continuity of our business.

     We will seek additional credit facilities with international banks to
refinance our short-term credit facilities. During 2000, we obtained the
approval of credit guarantees from Export-Import Bank of the United States of up
to $56 million for loans to be made by The International Bank of Miami, N.A. to
be used for purchases of communications equipment and material from Motorola and
other U.S. suppliers. At March 31, 2001, the amount of $23.0 million has been
disbursed under these facilities. The credit guarantees will be repayable over a
five-year period.


ITEM 4. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

     The following discussion about market risks to certain financial
instruments includes "forward-looking" statements that involve risks and
uncertainties. Actual results could differ materially from those projected in
the forward-looking statements.

     We are exposed to market risks from adverse changes in interest rates and
foreign exchange rates. We do not hold or issue financial instruments for
trading purposes.


INTEREST RATE RISK

     Our interest expense is sensitive to changes in the general level of
interest rates in the United States and in the Dominican Republic. At March 31,
2001, we had outstanding $200 million aggregate principal amount of senior
notes. The senior notes bear interest at a fixed rate of 11 3/8% per annum and
mature in the year 2004. The fair value of the senior notes was approximately
$186 million and $190 million at December 31, 2000 and March 31, 2001,
respectively. The senior notes are U.S. dollar-denominated.

     Our primary exposure to market risk for changes in interest rates relates
to our short-term borrowings from Dominican banks. Primary exposure is based on
the potential of short-term interest rate variation, not on exposure to changes
in fair market value of our long-term debt. At December 31, 2000 and March 31,
2001, we had $199.8 million and $214.9 million, respectively, outstanding of
short-term and long-term borrowings, other than our senior notes due 2004 but
including trade finance, of which $189.1 million and $199.5 million,
respectively, was U.S. dollar-denominated, and the remaining $9.7 million and
$15.4 million, respectively, was peso-denominated. At December 31, 2000 and
March 31, 2001, of the $189.1 million and $199.5 million, respectively, U.S.
dollar-denominated debt, $55.8 million and $57.9 million, respectively, was
borrowed from a Dominican bank, while the remaining $133.3 million and $141.6
million, respectively, was borrowed from international banks. Of the total
$198.8 million and $214.9 million outstanding, at December 31, 2000 and March
31, 2001 respectively, $137.2 million and $132.0 million, respectively, had
fixed interest rates, while the remaining $61.6 million and $82.9

                                     - 16 -
<Page>

million, respectively, had variable interest rates. During the first quarter of
2001, our short-term and long-term U.S. dollar denominated borrowings bore
interest at rates ranging from 8.16% per annum to 12.25% per annum. During the
first quarter of 2001, our short-term and long-term Dominican peso denominated
borrowings bore interest at rates ranging from 24% per annum to 28% per annum. A
10% increase in the average rate for our variable rate debt would have increased
our loss for the first quarter of 2001 by approximately $515,000.


FOREIGN EXCHANGE RISKS

     We are subject to currency exchange risks. During the first quarter of
2001, we generated revenues of $19.7 million in U.S. dollars and $37.7 million
in Dominican pesos. In addition, at March 31, 2000, we had $199.5 million of
U.S. dollar-denominated debt outstanding, excluding the $200.0 million principal
amount of the 11 3/8% senior notes due 2004.

     The impact of changes in foreign exchange rates is determined by measuring
the effect of percentage changes in the range of rates during the year for our
Dominican peso-denominated assets and liabilities. The model reflects the
weighted average change in exchange rates as resulting in the same percentage
change in foreign exchange gains or losses.

     Dominican foreign exchange regulations require us and other
telecommunications companies to convert all U.S. dollar revenues into Dominican
pesos at the official exchange rate, and to purchase US dollars at the private
market exchange rate. Although the official exchange rate now fluctuates and is
tied to the private market rate, the official exchange rate tends to be lower
than the private market rate. During the first quarter of 2001, the average
official exchange rate was RD$16.65 per $1.00 while the average private market
rate was RD$16.86 per $1.00.

     Our functional currency is the U.S. dollar and, as a result, we must
translate the value of Dominican peso-denominated assets into U.S. dollars when
compiling our financial statements. This translation can create foreign exchange
gains or losses depending upon fluctuations in the relative value of the
Dominican peso against the U.S. dollar. During the first quarter of 2001, we
recognized an approximate $248,000 foreign exchange loss. If the Dominican peso
had devalued by an additional 10% against the U.S. dollar on average in 2000,
then we would have realized an additional foreign exchange loss of approximately
$24,800.


                                     PART II

                                OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

     In August 1999, a Dominican company, DCS International S.A., and two
individual plaintiffs whom in our belief are officers or employees of DCS, sued
us before Dominican courts for alleged losses and damages of up to approximately
RD$200 million ($12 million) resulting from the imprisonment by Dominican
authorities of two of the individuals for 15 days. The plaintiffs alleged that
their imprisonment was the result of an investigation by the local district
attorney and the police that we instigated following an irregular increase in
telephonic traffic at certain telephone numbers. We requested that the court
dismiss the action because of lack of jurisdiction. The court granted our motion
to dismiss and ruled that the plaintiffs should cover the costs of the
proceedings. The plaintiffs have resubmitted the action before the proper court
and, after numerous requests and hearings before the Court, the case is now
pending decision from the Judge of the Civil and Commercial Court Room of the
Third Circumscription of the Court of First Instance of the National District of
Santo Domingo. After consulting with legal counsel, we believe that this matter
will not have a material adverse effect on our results of operations and
financial position.

     There are no other legal proceedings to which we are a party, other than
routine litigation incidental to our business which is not otherwise material to
our business or financial condition.

                                     - 17 -
<Page>

ITEM 2.  CHANGES IN SECURITIES AND USE OF PROCEEDS

         Not applicable.

ITEM 3.  DEFAULTS UPON SENIOR SECURITIES

         None.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         None.

ITEM 5.  OTHER INFORMATION

         None.

ITEM 6.  EXHIBITS AND REPORTS ON FORM 20-F AND FORM 6-K

(a)      Exhibits.  None.

(b)      Reports on Form 20-F. The Company filed with the Securities and
         Exchange Commission a Report on Form 20-F on May 10, 2001 reporting the
         Company's results of operations for the year ended December 31, 2000.

(c)      None.

                                     - 18 -
<Page>

                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.


                                           TRICOM, S.A.


Dated: May 23, 2001                        By: /s/ CARL CARLSON
                                           -------------------------------------
                                           Carl Carlson
                                           Executive Vice President
                                           and Member of the
                                           office of the President

                                     - 19 -