Migrate contacts using tools available at your local AT&T store. If you have visited an AT&T store and saved your contacts & phone numbers to a USB flash drive, follow these steps to upload them into Outlook, Outlook Express, or Windows Mail, then synchronize to iTunes and iPhone.
TIP: Before transferring contacts to a USB drive, save contacts from your SIM card to your phone’s memory. This will ensure a smooth transition into iTunes.
Insert USB drive into USB port on your PC.
Save the .pbb file to a convenient location on your PC. (This file contains your contacts.)
Download Content Manager
When prompted, select Save to save "ContentManager_latest.zip" to a convenient location on your PC.
Right click on ContentManager_latest.zip file to extract the file to your PC.
Once extracted, open the Content Manager program.
Follow the on-screen steps to download and save Content Manager to your PC.
NOTE: You may be prompted to download the latest version of Microsoft .NET 2.0. To do so, click here
Once installed, open Content Manager.
Select Contacts > Open Phonebook.
Select .pbb file that you just saved to your PC.
Select Contacts > Export > select either Outlook or Outlook Express.
Open iTunes on your PC.
To synchronize your contacts with iTunes, connect iPhone to your PC.
When the iPhone icon appears in iTunes, select it.
Click the Info tab on the right.
Select the Contacts and Calendar check buttons and then choose Sync.
Your contacts will now be accessible via your iPhone.