Insert your SIM card into the new phone if you are keeping the same SIM
If your old phone uses eSIM, contact your carrier or use the carrier app to move the eSIM to the new phone
Make sure the new phone is unlocked and compatible with your carrier
Turn on the new phone and follow the setup steps
Sign in with your Apple ID or Google account if needed
Restore your contacts, messages, and data from a backup if desired
If your number is tied to a carrier account, confirm the number is active on the new device
Restart the new phone after the SIM or eSIM transfer
Test the number by making a call or sending a text
Contact your carrier if the number does not work after the transfer