2006 FIRST QUARTER RESULTS CONFERENCE CALL

WEDNESDAY, 26 APRIL 2006 9 AM (ET) / 2 PM (UK) / 3 PM (CET) Hosts: Marc Beuls – President and Chief Executive Officer David Sach – Chief Financial Officer Millicom International Cellular S.A. will announce its financial results for the First Quarter 2006 on Wednesday, 26th April. The company will host a conference call for the global financial community at 9 AM (ET) / 2 PM (UK) / 3 PM (CET). The conference call will be webcast in listen-only mode on Millicom’s website at www.millicom.com. To participate in the conference call, please register at: www.sharedvalue.net/millicom/Q106 The dial-in number to join the conference call will be available upon registration. You may also register by filling out the information attached and returning it by fax to Shared Value at +44 (0)20 7321 5020 or contact Shared Value at +44 (0)20 7321 5010 for further details. 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.