EarthWorks Geospatial Catalog

2010 U.S. Telephone Area Code Boundaries

Description
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.
Publisher
Environmental Systems Research Institute (Redlands, Calif.)
Collection
ESRI 10 USA Census
Place(s)
United States of America
Subject(s)
Telephone and Boundaries
Year
2010
Held by
NYU
More details at