REGULATORY CHANGES IN COLOMBIA

REGULATORY CHANGES IN COLOMBIA

New York and Stockholm - December 13, 2007 - Millicom International Cellular
S.A. (Nasdaq Stock Market: MICC and Stockholmsbörsen: MIC), the global
telecommunications company, today commented on the initiatives announced by the
Colombian Regulator last week. The interconnect rate has been reduced with
immediate effect from approximately US 12 cents to 6 cents and, as part of the
new regulations, the interconnection between operators will continue to be
symmetric but charged on a per second basis.

These changes will allow Tigo to improve the affordability of its services over
time and the resulting price elasticity will be an important driver for future
revenue growth. However, in the short term Tigo will see a negative effect on
revenues and margins in Colombia as Tigo, the smallest of the three mobile
operators, currently generates substantially more incoming than outgoing calls
interconnecting with other operators. In the fourth quarter the impact will be
limited but in 2008 revenue and margin in Colombia will be affected, although
our target to achieve the Millicom Group average EBITDA margins in Colombia over
time still remains unchanged.

Marc Beuls, CEO of Millicom commented, "These changes in the regulatory
environment in Colombia will allow Tigo to implement all 3 A's of its business
model going forward, but we have to accept a short term impact on revenues and
margins in Colombia as the price worth paying to achieve these longer term
objectives in a market with great potential."


Millicom International Cellular S.A. is a global telecommunications group with
mobile operations in Asia, Latin America and Africa.  It currently has mobile
operations and licenses in 16 countries.  The Group's mobile operations have a
combined population under license of approximately 280 million people.

This press release may contain certain “forward-looking statements” with respect
to Millicom's expectations and plans, strategy, management's objectives, future
performance, costs, revenues, earnings and other trend information.  It is
important to note that Millicom's actual results in the future could differ
materially from those anticipated in forward-looking statements depending on
various important factors.  Please refer to the documents that Millicom has
filed with the U.S. Securities and Exchange Commission under the U.S. Securities
Exchange Act of 1934, as amended, including Millicom's most recent annual report
on Form 20-F, for a discussion of certain of these factors.

All forward-looking statements in this press release are based on information
available to Millicom on the date hereof.  All written or oral forward-looking
statements attributable to Millicom International Cellular S.A., any Millicom
International Cellular S.A. employees and representatives acting on Millicom's
behalf are expressly qualified in their entirety by the factors referred to
above. Millicom does not intend to update these forward-looking statements.

CONTACTS

Marc Beuls
President and Chief Executive Officer
Millicom International Cellular S.A., Luxembourg
Telephone:  +352 27 759 327

David Sach
Chief Financial Officer
Millicom International Cellular S.A., Luxembourg
Telephone:  +352 27 759 327

Andrew Best
Investor Relations
Telephone:  +44 7798 576 378

Visit our web site at: www.millicom.com