Can I use a verizon iPhone with a bad esn on at&t?

Can I use a verizon iPhone with a bad esn on at&t?

I think yes

Nope

A bad ESN means that the phone is lost/stolen or not payed off. Most, if not all major cell providers have a blacklist of IMEIs so that they don't allow blacklisted devices on their services. So it is quite likely that your phone won't work.

What model? Not that it matters, as the phone will be blacklisted anyway, but older iPhones with an ESN would be CDMA models, and they won't work on a GSM network no matter what.

No you can't use a phone with a bad esn in the United States, if you move to Canada or anywhere else, then yes you can

Lol you want a stolen phone