SIM card replacement
Changed SIM card. Now settings won’t let me put in my phone number.
Requesting another SIM card.
iPhone XR
Question marked as
ProblemVL wrote:
Changed SIM card. Now settings won’t let me put in my phone number.
Requesting another SIM card.
The SIM card or eSIM effectively is the phone number. There's no way to enter a different number.
You can be blocked from using a SIM or eSIM from a different carrier, if the iPhone is carrier-locked.
How to unlock your iPhone for use with a different carrier - Apple Support