EarthWorks Geospatial Catalog

United States Telephone Area Code Boundaries, 2014

Author(s)
and
Description
This polygon shapefile contains the boundaries of telephone area codes in 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. When an NPA is split, the geographic area covered by the old area code is divided geographically, with one portion retaining the previous area code and the other switching to the new area code. When a new NPA is added as an overlay, the old area code remains unaffected. Instead, all or part of the land covered by the old area code is now covered by two area codes. Data are represented at a scale of 1:250,000. This layer is part of the 2014 ESRI Data and Maps collection for ArcGIS 10.2.U.S. Telephone Area Code Boundaries provides the telephone area codes of the United States for use in telecommunications analysis.
Publisher
Environmental Systems Research Institute (Redlands, Calif.)
Place(s)
United States and Puerto Rico
Subject(s)
Telephone--Area codes and Utilities and Communication
Year
2014
Held by
Stanford
More details at
Use and reproduction
These data are licensed by Stanford Libraries and are available to Stanford University affiliates only. Affiliates are limited to current faculty, staff and students. These data may not be reproduced or used for any purpose without permission. For more information please contact brannerlibrary@stanford.edu.
Copyright
Copyright ownership resides with the originator.