WHen I lived in the UK I used to use several pre-pay phone services... Orange with whom I could call the US for 20p a minute. Cellnet with whom I could call the US for 5p a minute after I spent GBP 20 on an add-on service for my pre-pay card. Virgin with whom I could call the US for 15p a minute. I did use Vodafone and One2One also but only for local calls. Now, has anything changed as far as pre-pay calls go? I haven't been to the UK for almost 4 years. Which prepay services would be the cheapest for calling within the UK and for calling abroad - primarily the US but also Russia, Lithuania and Latvia?