Global Crossing Announces Conference Call for GCUK's Third Quarter Financial Results

LONDON, December 7, 2010 - Global Crossing (Nasdaq: GLBC) will conduct a conference call on Tuesday,
December 14, 2010 at 9:00 a.m. EST/2:00 p.m. GMT. John Kritzmacher, chief
financial officer, Global Crossing and Ted Higase, managing director, Global
Crossing UK (GCUK) and EMEA, will discuss GCUK's financial results for the
third quarter of 2010.

The call may be accessed by dialing +1-212-231-2905 or
+44(0)20-8196-2883. Callers are advised to dial in 15 minutes prior to the
start time. The call also will be Webcast at
investors.globalcrossing.com/results.cfm.

A replay of the call will be available on Tuesday, December 14, 2010,
beginning at 11:00 a.m. EST/4:00 p.m. GMT and will be accessible until
Tuesday, December 21, 2010 at 11:00 a.m. EST/4:00 p.m. GMT. To access the
replay, dial +1-402-977-9140 or +1-800-633-8284 and enter reservation number
21489357. UK callers may access the replay by dialing +44(0)87-0000-3081 or
(0)800-692-0831 and entering reservation number 21489357.

ABOUT GLOBAL CROSSING

Global Crossing (Nasdaq: GLBC) is a leading global IP and Ethernet
solutions provider with the world's first integrated global IP-based network.
The company offers a full range of data, voice and collaboration services
with an industry leading customer experience and delivers service to
approximately 40 percent of the Fortune 500, as well as to 700 carriers,
mobile operators and ISPs. It delivers converged IP services to more than 700
cities in more than 70 countries around the world.

Global Crossing UK Telecommunications Ltd. provides a full range of
managed telecommunications services in a secure environment ideally suited
for IP-based business applications. The company provides managed voice, data,
Internet and e-commerce solutions to a strong and established commercial
customer base, including more than 100 UK government departments, as well as
systems integrators, rail sector customers and major corporate clients. In
addition, Global Crossing UK provides carrier services to national and
international communications service providers.

Website Access to Company Information

Global Crossing maintains a corporate website at
www.globalcrossing.com, and you can find additional information about
the company through the Investors pages on that website at
investors.globalcrossing.com. Global Crossing utilizes its website as
a channel of distribution of important information about the company. Global
Crossing routinely posts financial and other important information regarding
the company and its business, financial condition and operations on the
Investors web pages.

Visitors to the Investors web pages can view and print copies of Global
Crossing's SEC filings, including periodic and current reports on Forms 10-K,
10-Q and 8-K, as soon as reasonably practicable after those filings are made
with the SEC. Copies of the charters for each of the standing committees of
Global Crossing's Board of Directors, its Corporate Governance Guidelines,
Ethics Policy, press releases and analysts presentations are all available
through the Investors web pages.

Please note that the information contained on any of Global Crossing's
websites is not incorporated by reference in, or considered to be a part of,
any document unless expressly incorporated by reference therein.

    CONTACT GLOBAL CROSSING:
    Press Contact
    Michael Schneider
    +1-973-937-0146
    Michael.Schneider@globalcrossing.com

    Analysts/Investors Contact
    Gino Mathew
    United Kingdom
    +1-973-937-1033
    Gino.Mathew@globalcrossing.com

IR/PR1

Press Contact, Michael Schneider, Global Crossing, +1-973-937-0146, Michael.Schneider at globalcrossing.com; or Analysts/Investors Contact, Gino Mathew, Global Crossing, United Kingdom, +1-973-937-1033, Gino.Mathew at globalcrossing.com