Mobile subscriber numbers in Africa have increased by over 1000% between 1998 and 2003 to reach 51.8 million. Mobile user numbers have long passed those of fixed line, which stood at 25.1 million at the end of 2003. In its latest publication African Telecommunication Indicators 2004, issued on the occasion of ITU TELECOM AFRICA 2004 taking place in Cairo, Egypt from 4-8 May, ITU examines the reasons behind the continent’s rapid mobile sector expansion and explores the sector’s future avenues for growth.