Two phones can not share the same number.
Follow the instructions here: What to do before you sell or give away your iPhone, iPad, or iPod touch - Apple Support
Then, remove the SIM from your old phone.
Newsroom Update
Apple and Google deliver support for unwanted tracking alerts in iOS and Android. Learn more >
Apple and Google deliver support for unwanted tracking alerts in iOS and Android. Learn more >
Two phones can not share the same number.
Follow the instructions here: What to do before you sell or give away your iPhone, iPad, or iPod touch - Apple Support
Then, remove the SIM from your old phone.
Two phones can not share the same number.
Follow the instructions here: What to do before you sell or give away your iPhone, iPad, or iPod touch - Apple Support
Then, remove the SIM from your old phone.
Am I just paranoid?