Sim carried locked

A PUK code is provided by a network provider to unlock a phone to work on any phone provider's network.

Click on the link to read about how to 'Use a SIM PIN [PUK code] for your iPhone or iPad' --> Use a SIM PIN for your iPhone or iPad - Apple Support

Ask your carrier to help you unlock your SIM card using the default SIM PIN or PUK code.

Contact your cellular carrier to get the PUK code for your SIM.