Let’s check and see if your iPhone still has a carrier lock preventing you from going to different phone carriers.

FREE iPhone Carrier Checker All Apple Device

iPhone and iPad carrier checker ( FREE ) Locked or Unlocked FREE CARRIER CHECKER
– Model device
– Carrier name
– Locked or Unlocked
– Next Tether Policy

https://myicloud.info/icloud-check/

How To Unlock SIM Lock on iPhone [Any Carrier]

How to know what Carrier and Network your iPhone is?
check here:

https://myicloud.info/icloud-check/