My girlfriend purchased a Motorola Droid smartphone, and ever since, she has not been able to remember what her new phone number is. She keeps asking me what it is. Finally I showed her where she could find it herself.
1. From the main screen, press Menu.
2. Select Settings.
3. Scroll down and select About phone.
4. Select Status.
5. My phone number should appear in the list.
Of course, this works on any Android phone such as the Droid ERIS and Incredible.