Telecommunications database targeted specifically toward disseminating all valid NPA/NXX combinations in the North American Numbering Plan. It covers all active North American NPA/NXX assignments. Included in the database are NPA (area code), NXX (… Read more.
North America
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The Political Database of the Americas (PDBA) is a non-governmental project of the Center for Latin American Studies (CLAS) at Georgetown University in collaboration with institutions like the Secretariat for… Read more.