Cannot use Phone Number with iMessage and Facetime

Hi there, David8406!
Thanks for reaching out to the Apple Support Communities! It sounds like you are having an issue with using your phone number with Messages and FaceTime on your new device and I am happy to help! Check out this article with steps for how to Add or remove your phone number in Messages or FaceTime. Specifically, I recommend you check out this section:

If you can't see or select your number in Messages or FaceTime

1. Make sure that you're using the latest software for your Mac or iOS device.
2. Make sure that you correctly followed the iPhone steps to set up your phone number. You should be using the same Apple ID on all of your devices.
3. In the “You can be reached” section of Messages and FaceTime settings, make sure that there are checkmarks beside your phone number and Apple ID:
   

If your phone number is unchecked and you can't select it, or you have some other issue, follow these steps:

1. On your Mac:
   • In Messages, choose Messages > Preferences, then click Accounts and select your iMessage account. Click Sign Out.
   • In FaceTime, choose FaceTime > Preferences, then click Sign Out.
2. On your iPhone, iPad, and iPod:
   • Go to Settings > Messages > Send & Receive. Tap your Apple ID, then tap Sign Out.
   • Go to Settings > FaceTime. Tap your Apple ID, then tap Sign Out.
3. On your iPhone:
   • Go back to Settings > Messages and make sure that iMessage is turned on.
   • Tap Send & Receive, then choose “Use your Apple ID for iMessage” and sign in with your Apple ID.
4. Using the same Apple ID, sign back in to Messages and FaceTime on your other devices.

If you still need help, change your Apple ID password and repeat the setup steps. If that doesn't work, contact Apple Support.

Take care!

Hi

Are you using the same mobile phone number?

Go to settings down to second phone icon click that next page top of page Check mobile number is correct / change to correct one.

Cheers

Brian 🇬-1F1E7;

Just curious if you absolutely signed out of both iMessage and FaceTime and then signed back in as prescribed by Joseph, above. You were signed out of both before you signed back in to either? Any problems or indications worth stating? Anyway, I'd try that again and throw in a restart while signed out for good measure.

Hi

Go to iCloud make sure iCloud back up is on Then backup now over your wifi.

Then go to settings down to reset Restore iPhone back to factory settings.

Set back up over your wifi when it asks if you want to use iCloud backup Say yes to get your apps and data back this will get rid of any bugs.

Cheers

Brian 🇬-1F1E7;