PUK code an SIM card
What’s my SIM card number and my PUK pin
iPhone SE, iOS 15
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Your SIM card number is on your SIM card. Your PUK (Personal Unlock Key) is a code you need if you forgot your SIM PIN. You must contact your carrier and ask for your PUK if your SIM is locked. You can also find it by logging in to your carrier’s customer portal.