1)   Zipkey 6.06E
If you type US addresses into any Windows program, ZIPKEY will speed your job and improve your accuracy. You type the zipcode, and ZIPKEY types out the city, state, etc. for you Instantly look up telephone area codes and time zones as well.

 2)   Excel Area Code Lookup Software 7.0
Convert phone number area codes to city and state in one or many MS Excel files. Excel 2000 or higher required.