Just check ebay - any that have a good amount of ratings and also ship from USA (assuming your location). There are other sim types as well - a few on Amazon- probably not a bad option since you can easily return if doesn't work for you.

I'm using a mint sim and can get everything working, BUT MMS - I think something is blocking the iPhone from getting the MMS settings that mint pushes to your iPhone. And there's no option to manually input the settings either.

Doubt it most likely the OO went the insurance route so they can cash out and get a phone back. There’s no way for the carrier to undo it then.

Just because it’s blacklisted doesn’t mean it was stolen - there isn’t an iCloud lock on it and everyone knows how to use that by now. What most likely happened is that the original owner stopped paying their bill to att and sold their iPhone for quick cash or potentially insurance fraud. Att will get their money as the original owner is still dented to them, so no I’m not encouraging theft.

Yeah I thought the networks didn’t share the blacklist, I’ll probably give to a friend internationally otherwise after I try it.