Digital Maps and Geospatial Data | Princeton University
U.S. Telephone Area Code Boundaries, 2013
- TomTom North America, Inc.
U.S. Telephone Area Code Boundaries represents the telephone area codes for the United States. They are also known as Numbering Plan Areas (NPA). The Numbering Plan Areas reflect current and accurate boundary changes both where new NPAs split from existing NPAs and where new NPAs overlay existing NPAs.
- United States and Puerto Rico
- Utilities and Communication
- 2011 and 2013
- Held by: