Originally Posted by
Dunbar
Actually on GoPhone the SIM gets locked to the device for 6 months when you activate it. So you don't want to activate the SIM card in another device. But you could swap it from another device if it's was activated more than 6 months ago. There's lots of good info in the HoFo GoPhone forum I linked to in my earlier post.
that only happens with the gophone kits that bundle a phone, sim and some bonus value.
it does not happen with standard at&t sims, which can be obtained at any at&t store or off ebay. if you get it at a store, they might want you to activate it at the same time, so bring another phone. otherwise, the sim can be activated online.