IMHO you should consolidate all your contacts to your Google account. This gives you an online backup and makes restoring or transferring contacts to a new device super simple. And you'll never lose your contacts.
To do it follow these steps:
1. On the phone, export the AT&T contacts as a .vcf file.
2. Go to Settings > Accounts > Google > Select your account > Disable contacts sync.
3. Transfer the .vcf file to a computer for upload or you can do it from the phone using a browser. Be sure to make a backup copy!
4. Login online to your Google (Gmail) account. Import the contacts file to the Gmail contacts.
5. In online contacts, click on 'More' and select 'Merge duplicates'. Once the Merge is completed, you might want to go through the contacts manually to check for any necessary edits.
6. To make sure the cleaned-up contacts list does not get corrupted by contacts remaining on the phone, go to: Settings > Apps > All > Google contacts > Clear cache > Clear data. This deletes all contacts on the phone.
7. On the phone, enable contacts sync. Contacts should automatically sync to the phone.
You are done. All your contacts should be in your Google account, cleaned up and backed up. Be sure to always save additions/deletions/edits to your contacts to your Google account.
Android since v1.0. Linux user since 2001.
07-21-2015 09:52 AM