my sim car

You would get the PUK code from your carrier, and info on how to unlock your SIM as well.

If you mean you need to unlock your phone for use with a different carrier, you will need to contact the carrier the phone is locked to and ask them to unlock it.

How to unlock your iPhone for use with a different carrier - Apple Support

Only your carrier can unlock it, no one here or at Apple can do this.

No I don't know the number to your cellular carrier.