I have an old Verizon flip phone that has active service with a Sprint MVNO. (I checked the number on freecarrierlookup.com and it shows it is on Sprint.) I believe (though aren't certain) this was done by flashing the Verizon phone to work on Sprint's network.
The phone was given to me with active service that's expiring this week. The account is not in my name. I'd like to wait for it to expire and then use this phone to sign up with another Sprint MVNO.
Is it safe to assume that once the old provider's service date expires that this phone will be available to use on another Sprint MVNO?
Another hitch is that in the phone settings I can only find a MEID. It is in hex format. I don't see any IMEIs or any other identification number. Tello seems to recognize the hex MEID and says it is currently in service with another provider but Ting's lookup tool as well as any other IMEI/MEID lookup tool I've checked says it is an invalid ID.
Is the phone 3G only? If so, to speculate, maybe Ting's and similar checkers no longer accept activations of 3G Sprint phones, whereas, since Tello still sells at least one 3G phone on its site and its checker accepted your phone, Tello still accepts activations of 3G phones, unlike some other MNVOs.