Sim restrictions
how do I put my phone on sim reatrictions
iPhone SE, iOS 16
Do you mean this?
Use a SIM PIN for your iPhone or iPad - Apple Support
- "To protect your SIM card from others using it for phone calls or cellular data, you can use a SIM PIN. Then, every time you restart your device or remove the SIM card, your SIM card will automatically lock and you'll see "Locked SIM" in the status bar."