MILLICOM ADDS OVER 1.4 MILLION SUBSCRIBERS IN Q2 2006 TO REACH 10.9 MILLION TOTAL SUBSCRIBERS*

New York and Stockholm - July 5th, 2006 - Millicom International Cellular S.A. ("Millicom") (Nasdaq Stock Market: MICC, Stockholmsbörsen: MIC), one of the world's leading cellular operators in emerging markets, today announces that it added over 1.4 million subscribers on a pro forma basis* through organic growth across its operations in the second quarter of 2006, bringing the total for the Group to 10,903,277 as at June 30th 2006. These subscriber additions represent growth of 15% in total subscribers from the previous quarter and growth of 62% from the second quarter of 2005, on a pro forma basis*. Marc Beuls, Millicom President and Chief Executive Officer said: “With subscriber acquisition growth of nearly 15% in Q2, following strong growth in Q1, we have demonstrated the effect of our increased investment in the rapidly growing emerging markets in which we are operating. Our success has been driven by a number of key drivers, the launch of the Tigo brand in Latin America and Africa, improved distribution networks and substantially increased capex which adds significant extra capacity and coverage and therefore gives us a competitive advantage in providing the best offer in the market. We have seen the highest subscriber growth in Africa but the growth in Latin America and South Asia have also been strong.” *Pro forma subscriber numbers for the current and previous quarters exclude some 400,000 subscribers in Pakcom, following the disposal of the Pakcom business. Millicom International Cellular S.A. is a global telecommunications investor with cellular operations in Asia, Latin America and Africa. It currently has cellular operations and licenses in 16 countries. The Group’s cellular operations have a combined population under license of approximately 390 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 members or persons 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 20 7321 5022 Visit our web site at: www.millicom.com