I was on my girlfriend's plan, we both have iPhone 4's. Both phones were in her name, and my phone was just an add on phone. Well, we broke up and she instantly disconnected my phone. Since my name wasn't on the account, I can't call and ask if the phone is clean or not.
I bought both phones, but she won't give me her's. I still have mine and want to sell it on eBay, can I do so? I heard if you have a bad esn the phones are useless. I don't want a bad rating for it, but it would be nice to get some of the $450 I spent on the phones back.
Even if Verizon won't release the ESN (which they won't as long as there is a balance on the account) the phone is not useless. You just can't activate it on Verizon. Since the 4S is a global phone, you can remove the SIM lock and use it on GSM carriers. Verizon blocked the phone from using the US GSM carriers, but I believe there's a way around that. On the CDMA side, MetroPCS and Cricket will both activate phones with bad ESNs from other carriers. If none of those options work for you, people are paying $200+ for iPhones 4Ss with bad ESNs on ebay.
The Verizon iPhone 4 does not do GSM, it is CDMA only. The 4S is dual mode: CDMA or GSM.
If she switched your line to another phone, it will be clean. If she canceled the line it will be clean after she pays the ETF. If she reported your phone lost / stolen, it is blacklisted unless and until she tells them to release it again.
You can call Verizon tell them you're looking to buy this used iPhone and ask if the ESN is clean.
"Call customer service" seems to mean that the phone is blacklisted. Entering a number that is not an ESN gives a different error message. If you enter a good ESN it goes to the next page where you'd select a plan.