Can i use At&T's GoPhone prepaid plan on my Unlocked iPhone 4?

I just bought a FACTORY UNLOCKED iphone 4. I had the 3g before that and i was using GoPhone from AT&T. I was wondering, does anyone positively know if i can still use it with the 4? I know i'd have to cut the sim.

Yes, that's no problem.

You should contact the carrier and ask

As long as the sim card is active it will work might have to redo alot of the mms settings and anps for the phone which you will have to do manually. But it will work

Yes, but the internet won't work, most retailers won't activate the phone for you, and iphones arent supposed to be used on prepaid.
Also, you will need to jailbreak it if you want internet other than Wi-Fi

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