INFORMATION CONCERNING THE MEMBERS OF THE BOARD OF DIRECTORS
AND THE EXECUTIVE OFFICERS OF
TELEFONOS DE MEXICO, S.A. DE C.V. ("Telmex")

Set forth below are the name, business address and present principal
occupation or employment, and material occupations, positions, offices or
employment for the past five years of each director and executive officer of
Telmex. Unless otherwise indicated, each such person is a citizen of Mexico and
has held his or her present position as set forth below for the past five years.
Directors of Telmex are indicated by an asterisk.

NAME AND CITIZENSHIP BUSINESS ADDRESS POSITION WITH TELMEX; PRESENT
- --------------------------- ------------------------------------ PRINCIPAL OCCUPATION OR
EMPLOYMENT;
MATERIAL POSITIONS HELD DURING
THE PAST FIVE YEARS
---------------------------------

David Antonio Ibarra Munoz* Canada No. 184 Director. Consultant ECLAC
01710 Mexico, D.F. Mexico. Board Member of
Grupo Financiero Inbursa.

Claudio X. Gonzalez Laporte* Jose Luis Lagrange No. 103, 4 piso. Director. Chairman and CEO of
Colonia Polanco Kimberly Clark de Mexico, S.A.
11590 Mexico, D.F. de C.V. Director of Carso
Global Telecom, Director of
Grupo Carso, Director of
Sanborns.

Sergio F. Medina Noriega Sullivan 199, 8(0). Piso Legal Director since February,
Col. San Rafael 1995. Secretary of the Board of
06470 Mexico, D.F. Directors. Secretary of the
Board of Directors of Grupo
Carso, S.A. de C.V. Secretary of
the Board of Directors of
Grupo Sanborns, S.A. de C.V. since
September of 1997; Secretary of the
Board of Directors of Grupo Financiero
Inbursa, S.A. de C.V. between
1993 and 1999; Secretary of the
Board of Directors of Banco
Inbursa, S.A. between 1992 and
1999.

Carlos Slim Helu* Paseo de las Palmas 736 Director and Chairman of the
Col. Lomas de Chapultepec Board and Chairman of the Board
11000 Mexico, D.F. of Carso Global Telecom, S.A.
de C.V. since 1996. Chairman
Emeritus of Grupo Carso, S.A.
de C.V. since 1998, Chairman of
the Board of Grupo Financiero
Inbursa, S.A. de C.V. since
1998, Chairman of the Board of
Grupo Carso, S.A. de C.V.
between 1991 and 1998, Chairman
of the Board of Grupo
Financiero Inbursa, S.A. de
C.V. between 1993 and 1998.

Jaime Chico Pardo* Parque Via 190, 10(0). Piso Vice President and Chief
Col. Cuauhtemoc Executive Officer. Vice
06599 Mexico, D.F. President of Carso Global
Telecom since October, 1998,
Board Member of Grupo

Carso since August, 1997, Board
Member of Grupo Financiero
Inbursa.

Juan Antonio Perez Simon* Calvario No. 100 Director and Vice Chairman.
Col. Tlalpan Chairman of the Board of
14000 Mexico, D.F. Sanborns Hermanos, S.A.

Carlos Slim Domit* Calvario No. 100 Director. Chairman of the Board
Col. Tlalpan of Grupo Carso, S.A. de C.V.
14000 Mexico, D.F. since 1998 and Chairman of the
Board and Chief Executive
Officer of Grupo Sanborns, S.A.
de C.V. since 1999. President
of Sanborns Hermanos, S.A. since 1995.

Antonio Cosio Arino* 5 de Febrero 18, 2(0). Piso Director. Chairman of Cia.
Col. Centro Industrial Tepeji del Rio.
Mexico, D.F.

Amparo Espinosa Rugarcia* Jose de Teresa No. 253 Director. Director of
Col. Tlacopac Promecasa, S.A. de C.V. since
San Angel, Mexico 01040 1995 and Director of Demac.

Elmer Franco Macias* Felix Guzman 16 Director. Chief Executive
Naucalpan de Juarez Officer of Infra.
Mexico 53390

Angel Losada Moreno* Ejercito Nacional 769-A Director. Executive President
Col. Anahuac of Grupo Gigante.
11520 Mexico, D.F.

Romulo O'Farril Jr* Balderas No. 87 Director. President and Chief
06040 Mexico, D.F. Executive Officer of Novedades
Editores.

Bernardo Quintana Isaac* Paseo de las Palmas 735, 1406 Director. ICA Group President.
Colonia Lomas de Chapultepec
11000 Mexico, D.F.

Paul W. Cardarella* One Bell Plaza Director. Managing Director
(American citizen) Dallas, Texas External Affairs of
75202 USA Southwestern Bell. Managing
Director Operations of SBCI-MSI
Mexico between 1993 and January
16, 2000.

Robert Allen Craft* Parque Via 190, 12(0). Piso Director. Finance Director of
(American citizen) Col. Cuauhtemoc SBCI-Mexico since March, 1998.
06599 Mexico, D.F. Director of Financial Planning
and Analysis of SBC between
August 1996 and February, 1998.
Corporate Manager of Financial
Planning and Analysis of SBC
between 1993 and August of 1996.

Richard C. Dietz* 530 McCullough, Director. President
(American citizen) San Antonio, Texas Telecommunications SBC
78215 U.S.A. Operations, Inc. since
December, 1999. President of
SWB Bus. Comm. Svcs. Of SWBT
between November and December
of 1999, President SBCI
(Mexico) of

Telmex between February, 1997 and
November, 1999, Vice President and
General Manager of SBC
Operations, Inc. between
January, 1995 and February,
1997.

J. Cliff Eason* 175 E. Houston, Room 1230 Director. President-SBC Network
(American citizen) San Antonio, Texas Operations of SBC Operations,
78205 U.S.A. Inc. since November, 1999.
President of SBC International
at SBC Communications, Inc.
between March 1998 and
November, 1999, President and
Chief Executive Officer of
Southwestern Bell Telephone
Company between February, 1996
and February, 1998, President
and Chief Executive Officer of
Southwestern Bell
Communications, Inc. between
July, 1995 and February, 1996,
President of Network Services
at Southwestern Bell Telephone
Company between July, 1993 and
June, 1995.

Michel Hirsch* Arne des Fleurs Director. Retired. Chairman FCR
(French citizen) 93360 Nevilly of France Telecom between 1996
France and 1999, Vicepresident
International of France Telecom
between 1987 and 1996.

Jean-Pierre Achouche* 126 Rue Reaumur Director. Manager of France
(French citizen) 75002, Paris, France Telecom. Director of Public
Networks and International Affairs
of France Telecom between March,
1998 and January 2000, Director
of Network Operations between
January 1, 1995 and
February, 1998.

Isidoro Ambe Attar Parque Via 198 Sales and Marketing Vice
Col. Cuauhtemoc President since June, 1999.
06599 Mexico, D.F. Corporate Market Vicepresident
of Telmex between August 1997
and June, 1999, National
Account Head of Telmex
between October, 1995
and July, 1996, Procurement
Assistant Vicepresident of
Telmex between February, 1995
and October, 1995.

Adolfo Cerezo Perez Parque Via 190, 10(0). Piso Chief Financial Officer.
Col. Cuauhtemoc
06599 Mexico, D.F.

Javier Antonio Elguea Solis Insurgentes Sur 3500, 3er. Piso Human Resources Vice President
Col. Pena Pobre since 1995.
14060 Mexico, D.F.

Arturo Elias Ayub Parque Via 198 - 701 Executive Vice President of
Col. Cuauhtemoc Information, Industry Service
06599 Mexico, D.F. and Government Affairs since
March,

1997. Advisor to
the CEO of Telmex between
November, 1996 and March,
1997.

Eduardo Javier Gomez Chibli Norte 4, No. 6113 Technical and Long Distance
Col. Popo Vicepresident since 1997. Long
11480 Mexico, D.F: Distance Vice President of
Telmex between 1995 and 1997.

Daniel Hajj Aboumrad Lago Alberto 366 Subsidiaries of Telmex. CEO of
Col. Anahuac Radiomovil Dipsa.
11320 Mexico, D.F.

Roberto Isaac Rodriguez Parque Via 190, 10(0). Piso Vicepresident International
Col. Cuauhtemoc Ventures since 1998 and Chief
06599 Mexico, D.F. Executive Officer Carso Global
Telecom. CEO of Afore
Inbursa between 1996 and
1998, Vice President of
Communication of Amafore
between 1996 and 1998,
Deputy CEO of Seguros
Inbursa between 1996 and
1998, CEO of
Tecmarketing between
1996 and 1998, Executive
Vice President Property
Casualty and Claims of
Seguros Inbursa between
1994 and 1996.

Hector Slim Seade Parque Via 198, 8o. piso Operations Support
Col. Cuauhtemoc Vicepresident since 1998.
06599 Mexico, D.F. Vicepresident of Supplies of
Telmex between 1997 and
1998, Assistant
Vicepresident of
Supplies of Telmex
between 1995 and 1997,
Head of Factoring of
Inbursa between 1995 and
1996, Head of Personal
Guarantees of Guardiana
Inbursa between 1990 and
1997.

Andres R. Vazquez del Mercado Parque Via 190 Executive Vicepresident
Benshimol Col. Cuauhtemoc Corporate Development since
06599 Mexico, D.F. June of 1999. Commercial
Vicepresident of Telmex between
June of 1994 and June of 1999.

Oscar Von Hauske Solis Paseo del Rio 186 Corporate Vicepresident of
Col. Chimalistac Systems and Procedures since
Mexico, D.F. September 25, 1995. Financial
Head of Servicios Condumex,
S.A. de C.V. between 1992 and
September 25, 1995.

Francisco Javier Mondragon Alarcon Parque Via 190, 501 General Counsel. Manager
Col. Cuauhtemoc Partner of Bufete Mondragon
06599 Mexico, D.F. Alarcon, S.C. since May of
1999, General Counsel
and Secretary of the
Board of Grupo Televisa,
S.A. from January 1,
1995 to May 31, 1999,
Executive Vice President
and Secretary of the
Board of Grupo
Televicentro, S.A. and
Grupo Alameda, S.A. from
January 1, 1995 to May
31, 1999.