Old phone number keeps populating

Hey brynncessa,

Go to Settings > Safari to ensure that the correct contact card has been selected for you there. This is where Safari would pull that information from so if you can double check that it's using the right card, this could help. It's also a good idea to check the Contacts app to see if there may be a duplicate card that is causing this mismatched data.

Take care.

Hello brynncessa,

We appreciate you for participating in the Apple Support Communities.

We want to make sure you get the help needed to resolve this issue. We recommend that you contact Apple Support directly. Depending on your region, you may be able to reach them here: Get Support

Best!

brynncessa,

Thank you for that update. At this point, the best recommendation would be to contact Apple Support directly. 

Regards.