In 2006, reach in Western Europe jumped to 109 percent, while in Eastern Europe penetration increased nearly two-fold, from 53 percent to 101 percent. In advanced economic countries in Asia and in North America the mobile density reached 84 percent and 76 percent, respectively. However, in developing Asian economies and Sub-Saharan Africa, the reach was still less than 30 percent.

The mobile density was defined as the number of mobile customer per 100 inhabitants, according to IDATE.