EarthWorks Geospatial Catalog

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
UCLA Mapshare
Year
2012
Held by
UCLA
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