AMENDMENTS TO QUARTERLY REPORTING DATES

MILLICOM INTERNATIONAL CELLULAR S.A.

FOR IMMEDIATE RELEASE
May 16, 2007

AMENDMENTS TO QUARTERLY REPORTING DATES

New York and Stockholm – May 16, 2007 – Millicom International Cellular S.A. (Nasdaq Stock Market: MICC and Stockholmsbörsen: MIC), the global telecommunications company, hereby amends its reporting dates for the forthcoming two quarters.

Results for the second quarter ended June 30, 2007, will be announced on Tuesday, July 24, 2007 (not July 26, 2007 as previously stated) and results for the third quarter ended September 30, 2007 will be announced on Tuesday, October 23, 2007 (not October 25, 2007 as previously stated).

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

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

Andrew Best
Telephone: +44 7798 576 378
Investor Relations


Visit our web site at: www.millicom.com