Verizon Wireless has activated its 40 millionth mobile customer in the U.S. Since November 24, 2003, when local number portability (LNP) went into effect in the top 100 markets, significantly more customers have switched to Verizon Wireless than have ported away to other service providers. The company has the lowest churn rate -- the percent of customers who leave for another service provider. http://www.verizonwireless.com