Whether you want to port your existing phone number to a new provider or contact customer service, you'll want to find your AT&T account number fast. Your account number is a unique identifier ...

Whether you sign up for Verizon mobile & 5G Home, prepaid mobile, or a Fios plan, the company assigns an account number to your profile. Verizon uses this account number to identify and bill your ...

If you need to find your own phone number on Android, this walkthrough can help you locate that with just a few easy taps.