From the Settings app, tap Cellular.
Tap Set Up Cellular.
If you already have a SIM or eSIM active, this screen may vary. Look for the Add eSIM button below your current plan/plans.
Tap Transfer From Nearby iPhone.
Make sure to enable a secure screen lock and are on the most recently released software version.
On your other device follow the on-screen prompts.
On your other device, enter the verification code displayed on your device.
Tap Transfer from another iPhone.
Tap Transfer Number.
Tap OK.
Tap Done.
You've completed the steps!
