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Shapefile
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boundaries
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utilitiesCommunication
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Columbia
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Polygon
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2011
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1. United States Telephone Area Code Boundaries, 2012
2011. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). United States Telephone Area Code Boundaries is a polygon theme representing the telephone area codes for the United States. They are also known a... Esri.