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).