NPA NXX - North American Telephone Database, Area Code,U.S. switching centers,NPA,NXX,Exchange,LATA,...

Area Code,U.S. switching centers,NPA,NXX,Exchange,LATA,Telephone company,CLEC,CLLI Code, Number Portability,Vertical,Horizontal,Latitude Longitude, Mileage, NECA FCC Tariff #4, Voice Over IP, VOIP all in one package,Telecommunications Traffic, erlang...

ERCOT - Texas ESI ID/ESIID Lookup - NPA NXX, Zip Code, and FIRMS Online Lookups - APIs

ERCOT Texas ESI ID,ESIID,ESI-ID,ESI, and NPA NXX Lookup, FIRMS Lookup And Lots More

NALENND North American Local Exchange NPA NXX Area Code Database

NALENND, the North American Local Exchange NPA NXX Database, complete coverage of the North American Numbering Plan and the public switched telephone network.

NPA NXX Telephone Area Code / Prefix and Exchange Databases

United States and Canadian NPA NXX area code prefix, local calling areas and wireless telephone number identification reference databases updated monthly.

NPA NXX Telephone Exchange / ZIP Code Databases

North American NPA NXX telephone area code exchange prefix databases, ZIP/Postal Code databases, ITU-T E.164 International telephone numbering plan databases.