@sraym5​ I obtained and paid off this phone entirely from Xfinity mobile. 

@sraym5​ If I look hard enough, I can probably find the purchase record.

@sraym5​

sraym5​ I was looking for the purchase record, and I found something interesting. The day I converted it, it sent this email:

Great news! You're ready to start using your new phone with Xfinity Mobile.

It’s likely the eSIM conversion that did it then.  Most carriers (I cannot speak to Xfinity) don’t convert your nanoSIM card into an eSIM, they issue a new eSIM and reassign everything that was provisioned to your nanoSIM to the new eSIM.  They do that because the system for reassigning to a new SIM was already in place, they just had to update it (if they chose to do so) to interface with their new eSIM system.  Much cheaper implementation and much easier for personnel to adapt to.  Instead of looking at a new nanoSIM card for the info, they just request an eSIM be generated through a different window on the same computer and copy/paste the new eSIM’s identifying information into their familiar SIM updating process.  If Xfinity is set up the same way, the backend of the computer programs might not be able to reprovision the transaction history.

Of course, it might happen even if you are going nanoSIM to nanoSIM, too.  I have had to replace a physical SIM before, but my device was already “Bring Your Own”, so I wouldn’t have seen any difference.