I want to know my phone’s carrier
What is my phone carrier
Who do pay for wireless service?
Or do you have an iPhone and you do not know
what wireless provider it is locked to?
What does it say when you look at Settings>General>About>Carrier?
You may have to scroll to see the entry for Carrier.
To check if iPhone is locked to a Carrier, put the sim
you intend to use into the iPhone. If you get no error
message, the iPhone is not locked to a wireless provider.
Settings>General>About and scroll down to Carrier Lock.
If the iPhone is unlocked, it should say 'No SIM restrictions'.
If you get a different answer, the iPhone is locked.