-- Posted by tell me again at 3:31 pm on Oct. 13, 2008 I'm on a pre-paid GoPhone, which doesn't have international roaming. Can someone please tell me if it will work to buy a separate sim card and insert it into my phone? Do carriers generally lock their SIMs? Has anyone done this before with a AT&T phone? -- Posted by ManiacPenguins at 3:33 pm on Oct. 13, 2008 Your phone generally has to be unlocked for that to work, unless the prepaid international sim is from your carrier. -- Posted by Rachelw at 3:33 pm on Oct. 13, 2008 where it is a go phone i don't think it has a sims card? -- Posted by tell me again at 3:35 pm on Oct. 13, 2008 Quote: from ManiacPenguins at 3:33 pm on Oct. 13, 2008 Your phone generally has to be unlocked for that to work, unless the prepaid international sim is from your carrier. Damn that sucks. I'll be trying to meet up with people overseas. Not to mention my paranoid parents who will want to call me every day. -- Posted by tell me again at 4:53 pm on Oct. 13, 2008 Update: I just got my phone unlocked, woot!