You won't see a big "Edit" button on the screen for your droid's contacts, but the option is only one click away. Once you have a contact's information on your screen, you can find the edit option in the screen's menu. This will enable you to edit the contact's phone numbers, email addresses, or any other fields on the contact card.

Step 1

Tap the shortcut to all your device's applications at the bottom of your home page, then your "People" app.

Step 2

Tap on the contact you want to edit, then tap the Menu icon resembling a line of three boxes, in the top right corner of the screen.

Step 3

Tap "Edit" in the menu that displays, then tap on the phone number you wish to edit.

Step 4

Make your desired edits, then tap the "Done" button to apply your changes.