SHARED ADMINISTRATIVE AND
                         OPERATIONAL SERVICES AGREEMENT


     This Services Agreement (this  "Agreement),  is effective as of January 23,
1998, between ICG Communications,  Inc., a Delaware corporation, ("ICG") and ICG
Services, Inc., a Delaware corporation (the "Company").

                                    RECITALS

     A.   The Company  and ICG desire to provide  services to each other (and to
          each  other's  controlled   Affiliates)  for  the  administration  and
          operation of the businesses.

     B.   This  Agreement  sets forth the  general  terms upon which ICG and the
          Company will provide such services, facilities, benefits and personnel
          to each other.

     In  consideration  of the mutual  promises  contained in this Agreement and
other good and valuable consideration,  the receipt and sufficiency of which are
hereby acknowledged, ICG and the Company agree as follows:

Section 1.  Services.

     (a)  Provision  of  Services.  At the  request  of the  Company,  ICG shall
          provide,  and shall  cause its  Restricted  Subsidiaries  to  provide,
          services to the Company for the  administration  and  operation of the
          businesses  of the Company  and its  controlled  Affiliates  and shall
          devote  thereto  such  time as may be  necessary  for the  proper  and
          efficient  administration  and  operation of such  businesses.  At the
          request  of ICG,  the  Company  shall  provide,  and  shall  cause its
          controlled   Affiliates   to   provide,   services   to  ICG  for  the
          administration  and  operation  of  the  businesses  of  ICG  and  its
          Restricted  Subsidiaries  and shall devote thereto such time as may be
          necessary for the proper and efficient administration and operation of
          such businesses.

     (b)  Description  of  Services.  The services to be provided by ICG and the
          Company pursuant to this Section 1 shall include,  without limitation,
          the  following  types of services  (collectively,  "Services")  as the
          Company or ICG may request from time to time:

          (i)  tax  reporting,   internal  and  external  financial   reporting,
               payroll,  employee benefit administration,  workers' compensation
               administration,  telephone,  fleet management,  package delivery,
               management  information  systems,  billing,  lock box, remittance
               processing, risk management services and general accounting;



                                       1



          (ii) other services  typically  performed by ICG's (and its Restricted
               Subsidiaries') or the Company's (and its controlled  Affiliates')
               executive,  accounting,  sales and marketing,  finance, treasury,
               corporate,   legal,   tax,   benefits,   insurance,   facilities,
               purchasing,  fleet management,  advanced  information  technology
               department personnel, business development and engineering;

          (iii)use of telecommunications  and data facilities and of systems and
               software  developed,   acquired  or  licensed  by  ICG  (and  its
               Restricted  Subsidiaries)  or the  Company  (and  its  controlled
               Affiliates)   from  time  to  time  for  financial   forecasting,
               budgeting and similar purposes,  and for other administrative and
               general operational purposes, including any such software for use
               on personal computers,  in any case to the extent available under
               copyright law or any applicable third-party contract:

          (iv) technology support and consulting services;

          (v)  purchasing   of   equipment;   telecommunications   transmission,
               facilities,  capacity and materials  and such other  materials as
               are  requested,  for  or on  behalf  of a  Party,  including  the
               provision of turnkey projects and operating leases;

          (vi) labor and services  associated  with providing the  installation,
               construction and engineering  associated with the items described
               in Section 1(b)(v) above.

          (vii)such other management,  supervisory,  strategic planning or other
               services as the Company or ICG may from time to time request; and

          (viii)  such  other  services,  materials,  and  equipment  as  may be
               requested by the other Party in the ordinary course of business.

     (c)  Use of Premises. ICG shall also provide the Company and its controlled
          Affiliates  the  use  of  its  facilities  and  leased  premises  (the
          "Premises")  as the Company shall require in the conduct and operation
          of its businesses.

Section 2.   Compensation for Services.

     (a)  Services  Provided by ICG. As a compensation for Services and Premises
          rendered by ICG and its Restricted Subsidiaries to the Company and its
          controlled  Affiliates  pursuant to this Agreement,  the Company shall
          reimburse ICG for (i) all direct expenses incurred by ICG in providing

                                       2



          Services,  provided that the incurrence of such expenses is consistent
          with practices  generally followed by ICG in managing or operating its
          own business and the  businesses of its  Restricted  Subsidiaries  and
          (ii) the fair market  value of the  Company's  pro rata share of ICG's
          indirect overhead  expenses based on a quarterly  determination of the
          usage (as determined on a percentage basis) by the Company of Services
          during the prior quarter. Such indirect expenses shall include (i) the
          salaries  and  other   compensation   of  ICG's  (and  its  Restricted
          Subsidiaries')  officers and  employees  who perform  Services for the
          Company, (ii) general and administrative overhead expenses,  (iii) the
          costs and expenses of ICG's physical facilities and telecommunications
          networks  that  are  utilized  by  the  Company  and  its   controlled
          Affiliates;  and (iv) sales commissions and other compensation payable
          by the Company on account of sales and marketing  activities conducted
          by  ICG  personnel  on  behalf  of  the  Company  and  its  controlled
          Affiliates.  ICG shall  keep  true,  complete  and  accurate  books of
          account  containing  such  information  as may be  necessary  for  the
          purpose of calculating the above costs.

     (b)  Services  Provided by the  Company.  As a  compensation  for  Services
          rendered by the Company and its  controlled  Affiliates to ICG and its
          Restricted   Subsidiaries  pursuant  to  this  Agreement,   ICG  shall
          reimburse  the  Company  for (i) all direct  expenses  incurred by the
          Company and its controlled Affiliates in providing Services,  provided
          that the  incurrence  of such expenses is  consistent  with  practices
          generally  followed by the Company in  managing or  operating  its own
          business and the businesses of its controlled  Affiliates and (ii) the
          fair market  value of ICG's pro rata share of the  Company's  indirect
          overhead expenses based on a quarterly  determination of the usage (as
          determined on a percentage  basis) by ICG of Services during the prior
          quarter.  Such  indirect  expenses  shall include (i) the salaries and
          other  compensation of the Company's (and its controlled  Affiliates')
          officers and  employees  who perform  Services  for the Company;  (ii)
          general and administrative  overhead  expenses;  (iii) the fair market
          value of purchasing  services  provided by ICG Equipment to or for the
          benefit of ICG;  and (iv)  sales  commissions  and other  compensation
          payable by ICG and its Restricted Subsidiaries on account of sales and
          marketing  activities  conducted by Company personnel on behalf of ICG
          and its Restricted Subsidiaries. The Company shall keep true, complete
          and accurate books of account  containing  such  information as may be
          necessary for the purpose of calculating the above costs.

     (c)  Procedure for Calculating Compensation.  The compensation payable by a
          Party under this Section 2 shall be determined on a quarterly basis in
          accordance  with the  procedures  set forth in  Attachment I, attached
          hereto  and  incorporated  herein  by  reference.  The  Parties  shall
          cooperate with each other to develop and implement  recordkeeping  and
          other  supplemental  procedures  in  addition  to those  set  forth in
          Attachment  I  to  ensure  the  accuracy  and  accountability  of  the
          compensation determinations required under this Section 2.

Section 3.  Term.

     (a)  Commencement.  This Agreement  shall be effective as of the date first
          above written (the "Effective Date").

                                       3


     (b)  Termination.  .Except as otherwise  expressly  provided  herein,  this
          Agreement,  the  rights  and  obligations  of the  Parties  under this
          Agreement shall remain in effect until  terminated by agreement of the
          Parties  or  in  the  event  either  party  materially  breaches  this
          Agreement  and fails to cure such breach  within sixty (60) days after
          written notice thereof from the non-breaching party. The non-breaching
          party shall thereafter be entitled to terminate this Agreement.

     (c)  Effect of Termination. In the event any termination of this Agreement,
          each  Party  shall  remain  liable for all  obligations  of such Party
          accrued under this  Agreement  prior to the date of such  termination,
          including,  without  limitation,  (i) all obligations of such Party to
          reimburse the other for  Services,  and as  applicable,  the Premises,
          provided under this Agreement  through the  termination  date, in each
          case as provided in Section 3,  provide  further  that no  termination
          shall effect obligations of the Parties to one another under any other
          agreement related to, including without limitation the following:  (i)
          all obligations of ICG or its controlled  Affiliates arising by virtue
          of its obligations to pay for Equipment and related services purchased
          for,  on behalf  of, or  leased to it by ICG  Equipment,  and (ii) all
          obligations   of   the   other   Party   relating   to   the   use  of
          telecommunications  facilities of the other, and (iii) amounts due for
          sales of the other  Parties'  services.  The  provisions  of Section 6
          shall survive  indefinitely,  notwithstanding  any termination of this
          Agreement.

Section 4. Indemnification Obligations.

     (a)  Each Party hereby  indemnifies,  defends and holds  harmless the other
          Party and its agents,  officers and employees from any and all losses,
          damages,   costs,  expenses  (including  reasonable  attorneys  fees),
          actions, or claims for personal injury,  damage to property,  or other
          damage or financial loss of whatever  nature in any way arising out of
          any acts or  omissions  of such  Party,  or its agents,  officers  and
          employees in connection with this Agreement.  IN NO EVENT SHALL EITHER
          PARTY  BE  LIABLE  TO  THE  OTHER   PARTY  OR  ANY  THIRD   PARTY  FOR
          CONSEQUENTIAL OR INCIDENTAL  DAMAGES OF ANY KIND OR NATURE ARISING OUT
          OF OR IN  CONNECTION  WITH THE  PERFORMANCE  OR FAILURE TO PERFORM THE
          OBLIGATIONS  UNDER THIS AGREEMENT,  INCLUDING BUT NOT LIMITED TO, LOSS
          OF PROFITS OR REVENUE, REGARDLESS OF THE FORESEEABILITY THEREOF.

     (b)  This  Section 4 will survive the  expiration  or  termination  of this
          Agreement,   regardless   of  the  reason  for  such   expiration   or
          termination.

Section 5.  Definitions.

     Capitalized  terms used in this Agreement shall have the meanings  ascribed
to them as set forth in other Sections.  In addition,  the following terms shall
have the following meanings:

                                       4


     "Affiliate" means a Person that directly or indirectly, through one or more
intermediaries,  controls,  is controlled  by, or is under common  control with,
another Person.  With respect to the Company,  the term  "controlled  Affiliate"
shall include entities in which the Company owns,  directly or indirectly,  a 50
percent equity or voting interest.

     "Control" means the power, directly or indirectly, to direct the management
and  policies of any Person,  through the  ownership  of voting  shares or other
equity interest, by contract or otherwise.

     "Equipment"  means  any  equipment,  materials  and  related  software  and
services, including installation, engineering and related services.

     "Party" and  "Parties"  means ICG  Communications,  Inc. and ICG  Services,
Inc., and their respective controlled Affiliates as the context requires.

     "Person"  means  an  individual,  and  a  corporation,  partnership,  joint
venture,  joint stock company,  association,  trust,  limited liability company,
unincorporated organization or any other entity.

Section 6.   Miscellaneous.

     (a)  Entire  Agreement.   This  Agreement  including  Attachment  I  hereto
          constitutes the entire  agreement  between the Parties with respect to
          the subject  matter of this  Agreement  and  supersedes  all  previous
          agreements, negotiations,  understandings and commitments with respect
          to such  subject  matter,  whether or not in writing.  This  Agreement
          including  Attachment I hereto  specifically  amends and restates that
          certain  Administrative  Services  Agreement,  the form of  which  was
          attached to the  Intercompany  Agreement,  effective as of January 23,
          1998, between the parties.

     (b)  Governing  Law.  This  Agreement  will be governed by and construed in
          accordance  with the laws of the State of Delaware,  without regard to
          any choice or conflicts-of-laws or rules or provisions (whether or not
          those of the State of Delaware)  that would cause the  application  of
          the laws of any jurisdiction other than the State of Delaware.

     (c)  Notices.  All  notices,  demands and other  communications  under this
          Agreement  shall be in  writing  and shall be deemed to have been duly
          given: (i) on the day of delivery if delivered personally to the Party
          to whom notice is to be given; (ii) on the day of transmission if sent
          via facsimile  transmission to the facsimile  number given below (with
          confirmation of delivery received); or (iii) on the day of delivery of
          Federal Express or similar overnight courier, to the Party as follows:

      If to ICG:

                                       5


                           ICG Communications, Inc.
                           161 Inverness Drive West
                           Englewood, Colorado 80112
                           Attention: General Counsel
                           Facsimile:  303/ 414-8839

                  If to the Company:

                           ICG Services, Inc.
                           161 Inverness Drive West
                           Englewood, Colorado  80112
                           Attention:  General Counsel
                           Facsimile:  303/ 414-8839


Any Party may change its address for the purpose of this  Section 6(c) by giving
the other Party written notice of its new address in the manner set forth above.

     (d)  Amendment.  This  Agreement  may not be  amended  or  modified  in any
          respect except by a written agreement signed by the Parties.

     (e)  Successors and Assigns; No Third-Party  Beneficiaries.  This Agreement
          and all of the provisions of this Agreement  shall be binding upon and
          inure to the benefit of the Parties  and their  respective  successors
          and permitted  assigns.  Neither this Agreement nor any of the rights,
          interests and  obligations  under this Agreement  shall be assigned by
          either  Party,  by  operation of law or  otherwise,  without the prior
          written  consent  of  the  other  Party.  Nothing  contained  in  this
          Agreement, except as expressly set forth herein, is intended to confer
          upon any other  Persons  other than the Parties  and their  respective
          successors and permitted assigns, any rights or remedies.

     (f)  Counterparts.   This   Agreement  may  be  executed  in  two  or  more
          counterparts,  each of which shall be deemed an  original,  but all of
          which together  shall  constitute  one and the same  instrument.  This
          Agreement  may be delivered by facsimile  transmission  and  facsimile
          signatures shall be treated as original  signatures for all applicable
          purposes.

     (g)  No Waiver.  No waver by either  Party of any term or condition of this
          Agreement, in any one or more instances,  shall operate as a waiver of
          such term or  condition  at any other  time.  No waiver of any term or
          condition of this  Agreement  shall be  effective  unless in a writing
          signed by the Party entitled to give such waiver.

     (h)  Relations   Between  the   Parties.   The   Parties  are   independent
          contractors.  Nothing in this Agreement shall constitute either Party,
          being  considered  a partner  of, or joint  venturer  with,  the other
          Party.

                                       6


     (i)  Severability. If any provision of this Agreement or its application to
          any  Person  or   circumstances   shall  be  held  to  be  invalid  or
          unenforceable,  the remainder of this Agreement, or the application of
          such provision to Persons or  circumstances  other than those to which
          it was held to be  invalid  or  unenforceable,  shall not be  affected
          thereby;  provided that the Parties shall negotiate in good faith with
          respect to an equitable  modification  of the provision or application
          thereof held to be invalid.

     (j)  Headings,  Terms. The Section headings contained in this Agreement are
          inserted  for  convenience  only and will  not  affect  in any way the
          meaning or interpretation  of this Agreement.  Terms used with initial
          capital letters will have the meanings  specified,  applicable to both
          singular and plural  forms,  for all purposes of this  Agreement.  All
          pronouns (and any variation) will be deemed to refer to the masculine,
          feminine or neuter,  as the  identity of the Person may  require.  The
          singular or plural  includes  the other,  as the  context  requires or
          permits.   The  word  include  (and  any  variation)  is  used  in  an
          illustrative  sense rather than a limiting sense. The word day means a
          calendar  day. All  references  to  "Section"  are to sections of this
          Agreement.

     (k)  Arbitration.  Any disputes  arising under or in  connection  with this
          Agreement,  including,  without limitation, those involving claims for
          specific  performance or other equitable relief,  will be submitted to
          binding  arbitration  under the  Commercial  Arbitration  Rules of the
          American  Arbitration  Association  under the authority of federal and
          state arbitration statutes,  and will not be the subject of litigation
          in any forum.  EACH PARTY,  BY SIGNING  THIS  AGREEMENT,  VOLUNTARILY,
          KNOWINGLY AND INTELLIGENTLY WAIVES ANY RIGHTS SUCH PARTY MAY OTHERWISE
          HAVE TO SEEK REMEDIES IN COURT OR OTHER FORUMS, INCLUDING THE RIGHT TO
          JURY  TRIAL.  The  arbitration  will  be  conducted  only  in  Denver,
          Colorado, or another location mutually agreed by the Parties, before a
          single  arbitrator  selected  by the Parties or, if they are unable to
          agree on an  arbitrator,  before a panel  of  three  arbitrators,  one
          selected by ICG, one selected by the Company and the third selected by
          the other two arbitrators. The arbitrators will have full authority to
          order  specific   performance  and  award  damages  and  other  relief
          available  under this  Agreement or  applicable  law, but will have no
          authority to add to,  detract from,  change or amend the terms of this
          Agreement or existing  law.  All  arbitration  proceedings,  including
          settlements  and awards , will be  confidential.  The  decision of the
          arbitrators  will be final and  binding,  and judgment on the award by
          the arbitrators may be entered in any court of competent jurisdiction.
          THIS  SUBMISSION  AND  AGREEMENT  TO  ARBITRATE  WILL BE  SPECIFICALLY
          ENFORCEABLE.  The  arbitrator  will have no power to award punitive or
          exemplary  damages to ignore or vary the terms of this Agreement,  and
          will be bound to apply  controlling  law.  The Party who  prevails  on
          entry of the award of  judgment  will be  entitled to his or its costs
          and  expenses,   including  reasonable  attorney's  fees  incurred  in
          connection  with the  arbitration.  A  judgment  upon the award may be
          entered in any court having jurisdiction.

     (l)  Confidentiality.   Each   Party   will   hold,   and  will  cause  its
          shareholders,  officers, directors,  employees, partners, consultants,
          advisors,  representatives  and  agents to hold,  in  confidence,  any
          information   with  respect  to  the  terms  and  provisions  of  this

                                       7



          Agreement,  except  (i)  if  compelled  to  disclose  by  judicial  or
          administrative  process  or by other  requirements  of law,  including
          financial  reporting and securities laws compliance  requirements  and
          reporting to creditors,  bondholders and trustees and that is required
          under applicable  financial  agreements of a Party, (ii) to the extent
          required  to perform  its  obligations  under or to enforce its rights
          pursuant to this Agreement, (iii) if mutually agreed by the Parties in
          writing in advance of such disclosure, or (iv) to the extent that such
          information  can be shown to have been in the public domain through no
          fault of such Party, provided that each Party may disclose information
          regarding  this   Agreement,   on  a  need  to  know  basis  only,  to
          shareholders,  officers, directors,  employees, partners, consultants,
          advisors, representatives, and agents (collectively, "Bound Persons"),
          so long as such  Bound  Persons  are  informed  by such  Party  of the
          confidential  nature of such  information and such Bound Persons agree
          to treat the  information  confidentially,  and the  disclosing  Party
          agrees to be  responsible  for any  breach of the  provisions  of this
          Section  6(1) by any  Bound  Persons  to  whom  such  Party  disclosed
          information. Each Party's obligation to hold information in confidence
          shall be satisfied if it exercises  the same care with respect to such
          information  as it would exercise to preserve the  confidentiality  of
          its own  similar  information.  This  Section  6(l) will  survive  the
          expiration or termination of this Agreement.

     IN WITNESS  WHEREOF,  the Parties  have caused  this  Agreement  to be duly
effective as of the day and year first written above.

                                    ICG COMMUNICATIONS, INC.



                                    By:  /s/ Sheldon S. Ohringer
                                        ----------------------------------
                                    Name:  Sheldon S. Ohringer
                                    Title: Executive Vice President-Telecom

                                    ICG SERVICES, INC.



                                    By:  /s/ Don Teague
                                        ----------------------------------
                                    Name:  H. Don Teague
                                    Title: Executive Vice President, General
                                           Counsel and Secretary

                                       8



  
                                 ATTACHMENT I TO
                      Shared Administrative and Operational
                               Services Agreement


                      Procedures to Determine Compensation

     The following  procedures  will be utilized to determine  the  compensation
payable by each Party  pursuant to Section 2. The Parties will from time to time
review,  revise  and  supplement  these  procedures,  as  mutually  agreed to be
appropriate or necessary to ensure the accurate determination, recordkeeping and
accountability of such compensation.

1.   Determination of Direct and Indirect Costs.

     (a)  ICG and the Company shall develop  specific  written  procedures to be
          followed by  departments.  Each  Department Head shall create specific
          recordkeeping  functions  which  shall be  disseminated  to all of the
          personnel in the  Department  Head's  department and shall be utilized
          within  their  departments  to  determine,  record and account for all
          direct  and  indirect  costs  incurred  by such  department  that  are
          reimbursable under Section 2.

     (b)  As soon after the end of each calendar  month as is  practicable,  the
          Department Head will provide the information for the previous month to
          ICG's corporate accounting department.  All information is reviewed by
          ICG corporate accounting.  Within approximately thirty (30) days after
          the  end of  each  calendar  month  ending  after  the  date  of  this
          Agreement,  ICG's corporate accounting  department shall, based on the
          information an data recorded and maintained  during such month by each
          division,  determine  the actual  direct and indirect  costs that were
          incurred by each department  which are  reimbursable  under Section 2.
          ICG's corporate accounting  department shall determine,  based on such
          reports and other  information as shall be deemed  relevant,  the fair
          market value of such reimbursable direct and indirect costs. In making
          such determination the following  principles shall be applied by ICG's
          corporate accounting department:

          (i)  The  fair  market  value of  direct  costs  shall  be the  actual
               out-of-pocket  costs  expended  by a Party on behalf of the other
               Party.

          (ii) The fair market value of indirect costs shall be the amount equal
               to the fully  burdened  costs incurred in providing such Services
               rendered,  taking into account,  among other factors, the type of
               Services  provided  and the time spent by  applicable  department
               personnel in rendering  such Services,  together with  associated
               costs, plus a five percent (5%) profit mark-up.

                                      A-1


2.   Determination of Boards of Directors.

     Each quarter upon the making of the determination set forth in Section 1(b)
of this Attachment I, ICG corporate  accounting and ICG legal  departments shall
deliver a written  report to the Boards of Directors of ICG and the Company,  in
such detail as required by the Boards of Directors,  of the amounts reimbursable
for  compensation  under  Section  2.  Based  on  such  report  and  such  other
supplemental  information  and  determinations  as the Boards of Directors shall
require,  the Boards of Directors shall jointly  determine the fair market value
of the  Services  provided  by ICG and the  Company  to each  other  under  this
Agreement.  The Boards of Directors  may, but shall not be required to,  consult
third party consultants in making their fair market value  determinations.  Upon
the  completion  of such joint  determination,  settlement  statements  shall be
prepared and issued by ICG and the Company detailing the compensation payable by
each Party under Section 2, and amounts owing under such  settlement  statements
shall be settled  (including by way of set-off) and paid within  forty-five (45)
days after the quarter end.


                                      A-2