U.S. Telephone Area Code Boundaries

Author(s)

Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, 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

Environmental Systems Research Institute, Inc. (ESRI)

Place(s)

United States

Subject(s)

transportation, polygon, area codes, telephones, and numbering plan areas

Year

2000

Held by

Harvard