US SIM cards - anyone know of a supplier of these in the UK please?
Not for a short visit but for long-term use in both the US & UK.
I need to be able to activate while here in the UK so as to receive calls from the US on it.
In an ideal world, also needs to be a company that allows porting over of an existing US #
(I had a bad experience with AT&T!)
Thank you in advance folks!