2009. Tele Atlas North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). U.S. Telephone Area Code Boundaries represents the telephone area codes for the United States. They are also known as Numbering Plan Areas (NPA). T... ESRI.
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2010. Tele Atlas North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). U.S. Telephone Area Code Boundaries represents the telephone area codes for the United States. They are also known as Numbering Plan Areas (NPA). T... ESRI.
2011. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). U.S. Telephone Area Code Boundaries represents the telephone area codes for the United States. They are also known as Numbering Plan Areas (NPA). T... Esri.
2000. Geographic Data Technology, Inc. (GDT). U.S. Telephone Area Code Boundaries represents the telephone area codes for United States. They are also known as Numbering Plan Areas (NPA). Environmental Systems Research Institute, Inc. (ESRI).
2002. Geographic Data Technology, Inc. (GDT). U.S. Telephone Area Code Boundaries represents the telephone area codes for United States. They are also known as Numbering Plan Areas (NPA). Environmental Systems Research Institute, Inc. (ESRI).
2011. 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). T...
2018. Esri and 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). T... Esri.
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). U.S. Three-Digit ZIP Code Areas represents the first three digits of a ZIP Code. The first digit of a five-digit ZIP Code divides the country into ... Environmental Systems Research Institute, Inc. (ESRI).
1999. Geographic Data Technology, Inc. (GDT). U.S. Three-Digit ZIP Code Areas represents the first three digits of a ZIP Code. The first digit of a five-digit ZIP Code divides the country into... Environmental Systems Research Institute, Inc. (ESRI).
2001. Geographic Data Technology, Inc. (GDT). U.S. Three-Digit ZIP Code Areas represents the first three digits of a ZIP Code. The first digit of a five-digit ZIP Code divides the country into... Environmental Systems Research Institute, Inc. (ESRI).