America and Oceania
Argentina (landlines only), Australia, Brazil, Canada, Colombia, Guam, Mexico, Peru, Puerto Rico, United States, Venezuela (landlines only).
Europe
Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Finland, France, Germany, Great Britain, Greece, Hungary, Iceland, Ireland, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Slovakia, Spain, Sweden, Switzerland (landlines only).
Africa and Asia
Bangladesh, China, Guam, Hong Kong, India, Indonesia, Israel, Japan, Malaysia, Mongolia, Morocco (landlines only), Pakistan, Singapore, South Korea, Turkey (landlines only).