USA (Telephone Area Code Boundaries, 2000)
- Author(s):
- Geographic Data Technology, Inc. (GDT), Geographic Data Technology, Inc., and Environmental Systems Research Institute, Inc. (ESRI)
- Description:
- U.S. Telephone Area Code Boundaries represents the telephone area codes for United States. They are also known as Numbering Plan Areas (NPA).
- Publisher:
- Geographic Data Technology, Inc
- Place(s):
- United States
- Subject(s):
- Public utilities
- Held by:
- MIT