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NPA NXX Location Database, Wire Center Edition. This data set contains central office wire center V&H coordinates and central office feature codes. This data includes every active telephone NPA/NXX area code and exchange combination in use for the United States, Canada and most of the Caribbean. A key feature of this database is its NECA Tariff No. 4 compatible Rate Center V&H coordinates.
Keywords: npa nxx npa nxx database wire center rate center united states north america data database phone area code prefix 1 000 block wire center north american telephone area code prefix location database wire center
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