Teleglobe Announces General Availability of Global IPv6 Transit Service

Teleglobe International Holdings Ltd (NASDAQ:TLGB):

   --  Successful Pilot Leads to Commercial Global IPv6 Service With
        SLA Currently Serving over 20 Customers in Asia, Europe and
        North America

   --  Adds Interconnection to IPv6 Internet Exchange in New York
        City (NY6IX) For Native IPv6 Traffic Exchange

   Teleglobe International Holdings Ltd (NASDAQ:TLGB) today announced
the general availability of its global IPv6 (Internet protocol version
6) transit service with service level agreement (SLA), which currently
serves over 20 major Internet service providers (ISPs) and content
providers in 15 countries including Canada, France, Germany,
Hong Kong, Kuwait, the Netherlands, Senegal and Spain. Through
multiple IPv6 peering agreements in North America and Europe,
Teleglobe customers are now commercially exchanging IPv6 traffic over
the company's global network.
   Teleglobe owns and operates one of the most extensive global
telecommunications networks, and is a leading provider of IP transit
to carriers and ISPs around the world. IPv6 is the next generation
Internet protocol which is in the early stages of supplementing and
someday replacing the original and currently dominant protocol for the
Internet, IPv4 (Internet protocol version 4).
   After a successful pilot service this past year, involving ten
customers on four continents and transmission over both cable and
satellite, Teleglobe is now offering commercial, generally available
IPv6 global transit service with SLA. Teleglobe offer IPv6 transit to
ISPs and content providers worldwide via a selection of interfaces
including IPv6/IPv4 dual-stack, IPv6 tunneling over IPv4, IPv6 tunnel
broker and native IPv6.
   Over the past few months, Teleglobe has established multiple IPv6
peering agreements in North America and Europe, including the most
recent agreement with NY6IX in New York City. Customers connected to
the New York IPv6 Exchange (NY6IX) will be able to connect to
Teleglobe for native IPv6 traffic exchange. Other major IPv6 peering
sites include AMS-IX in Amsterdam, SFINX in Paris, ESPANIX in Madrid,
EQUI6IX in Ashburn (Virginia), San Jose (California), and HKIX in
Hong Kong.
   "The introduction of commercial IPv6 transit by a tier 1 global
carrier is a major contribution to the acceleration of IPv6 adoption
worldwide and the realization of associated new service revenue
opportunities," said Latif Ladid, President of the Global IPv6 Forum.
   "This general availability for IPv6 reflects the transition from
research and education exercise to commercial value, from pilot
operation to business operation," said Yves Poppe, Director IP
Strategy at Teleglobe. "This will help usher a new growth phase in the
Internet in an increasingly mobile world with ever more versatile
multimedia end-user devices."
   Teleglobe has upgraded access routers to dual stack IPv4 and IPv6
in Hong Kong, Los Angeles, San Jose, Miami, Ashburn, Newark (New
Jersey), New York, Toronto, Montreal, Madrid, Paris, London,
Amsterdam, Oslo, Warsaw and Frankfurt. Further access locations will
be upgraded to meet customer demand.
   Teleglobe is a global Tier 1 Internet service provider (ISP) and
operates the IP backbone AS 6453 which circles the globe. Teleglobe's
global network supports a wide variety of advanced data and IP
services including global IP transit, international private leased
circuits (IPLs), bandwidth and broadcast services. Teleglobe has
acquired capacity in over 100 subsea and terrestrial cable systems and
has access to 40 antennas serving the Atlantic, Pacific, and Indian
Oceans. The company's MPLS-enabled IP network connects more than 90
countries to the Internet and now supports IPv6.

   About Teleglobe

   Teleglobe International Holdings Ltd is a leading provider of
international voice, data, Internet and mobile roaming services with
over 50 years of industry expertise in international
telecommunications. Teleglobe became a public company trading on the
NASDAQ under the symbol TLGB with the acquisition of Voice over IP
(VoIP) network leader ITXC Corp. on June 1, 2004.
   Teleglobe owns and operates one of the world's most extensive
telecommunications networks, reaching over 240 countries and
territories with advanced voice, mobile, and data services. Teleglobe
is the carrier of choice to more than 1,400 wholesale customers
representing the world's leading telecommunications, mobile operators
and Internet service providers.
   With an annual run-rate of over 13 billion minutes, and a
significant portion of the world's Internet traffic, Teleglobe's
network is consistently ranked among the most robust and reliable,
performing at the high end of industry standards. Detailed information
about Teleglobe is available on the company's web site at
www.teleglobe.com.