At the end of December 2007, US had an estimated 16.1 million subscribers while Japan had a total of 15.7 million. Another development that has taken place is that NTT has emerged as the largest retail VoIP service provider in the world. With 5.032 million customers, it overtook Softbank BB in 4Q07 who actually slipped back from 4.8 million subscribers as of end 2006 to around 4.3 million VoIP subscribers. After NTT, therefore, Comcast is number 2 VoIP service provider in the world. In total, there were estimated 64.7 million retail VoIP subscribers worldwide as of end December 2007.
