Skype has 12% of international calling minutes

"New data released by TeleGeography shows that Skype’s share of international calling minutes has jumped to 12%, a 50% increase on last year’s figure of 8%. ‘The volume of traffic routed via Skype is growing at an astonishing pace’, says Telegeography’s annual report into the world of international telecommunications.
Skype retains its top spot as the ‘largest provider of cross-border communications in the world, by far’ according to the same report. Skype-to-Skype international calling minutes grew by 21 billion in 2009, a phenomenal acceleration of almost 100%. Telegeography strategy VP Stefan Beckert said at a meeting in Honolulu (why can’t we have meetings there?) that ‘he knew Skype hit a tipping point when his grandmother started using it’."
Source: Data from Telegeography, quoted in the Skype blog, 19th January 2010