EX-99.1

             PRESS RELEASE, DATED December 4, 2000.


[COMPANY LOGO]  FOR IMMEDIATE RELEASE
                For more information, contact:
                Media Contact:                     Investor Contact:
                Susan Koehler                      (303) 414-5347
                (303) 414-5634                     investor_relations@icgcom.com
                susan_koehler@icgcom.com


                 ICG COMMUNICATIONS ANNOUNCES MANAGEMENT CHANGES

     ENGLEWOOD,  Colo.  (Dec.  4,  2000)  -  ICG  Communications,  Inc.  (ICGXQ)
announced today the  resignations  of several  executive team members as part of
its  on-going  financial  restructuring  efforts.  ICG  is a  telecommunications
company and provider of network infrastructure, facilities and management.

     Executive team members  resigning  include William S. Beans Jr.,  president
and chief operating  officer;  Harry Herbst,  executive vice president and chief
financial officer;  Cindy Schonhaut,  executive vice president of Government and
External  Affairs;  and  Carla J.  Wolin,  executive  vice  president  of People
Services.

      "I  understand  it is difficult to accept this change on a personal  level
for those who have worked  closely with the team members  leaving," said Randall
E.  Curran,  chief  executive  officer.  "I have  complete  confidence  in ICG's
employees and their ability to carry on and support the company's  leadership as
we transition to a more direct chain of command."

     ICG's  day-to-day  operations  will be overseen by Curran and Mike  Kallet,
executive  vice  president  of  Operations,  with the support of David  Hurtado,
senior  vice  president  of  Telephony  Operations,  Darlinda  Coe,  senior vice
president  of Network  Support,  and Gary  Lindgren,  senior vice  president  of
Engineering.

     Beans will remain on ICG's board of directors to further support ICG as the
company continues with its financial restructuring. The company anticipates, and
looks forward to, Herbst, Schonhaut and Wolin consulting for ICG on an as-needed
basis.

     "Bill  has  been  highly  supportive  of me and the  organization  at every
level," said Curran.  "I applaud Bill,  Harry,  Cindy,  and Carla for their many
contributions to ICG during their tenure and appreciate  their  cooperation with
this transition."

     Rich  Fish,  senior  vice  president  of Finance at ICG,  was  promoted  to
executive vice president and chief  financial  officer,  and Gayle Landis,  vice
president of People  Services was promoted to senior vice  president.  Both Fish
and Landis will report  directly to Curran.  LaCharles  Keesee,  vice  president
Government  and External  Affairs was promoted to senior vice president and will
report to Bernie Zuroff, ICG's general counsel.

        In addition,  Bob Athey,  senior vice  president  of Sales;  Kim Gordon,
senior vice president of Marketing; Brian Cato, vice president of Customer Care;
and Jack  Campbell,  chief  information  officer  and senior vice  president  of
Information Systems, also will report directly to Curran.

      On November 14, 2000,  ICG filed for Chapter 11 Bankruptcy  Protection and
also  announced  it had  secured  a  commitment  for up to $350  million  of new
financing from Chase Manhattan Bank.

                                     -more-


ICG ANNOUNCES  MANAGEMENT CHANGES                                    Page 2 of 2

About ICG Communications

ICG Communications, Inc. is an Englewood, Colo.-based telecommunications company
with a nationwide  voice and data network.  The company is a  competitive  local
exchange carrier (CLEC) and broadband data communications  company, as well as a
provider of network  infrastructure,  facilities  and  management.  ICG delivers
products and services to its customer base of Internet service providers (ISPs),
business customers, and interexchange carriers through its national network. For
more information about ICG  Communications  (NASDAQ:  ICGX), visit the company's
Web site at http://www.icgcom.com.

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