North American area codes database one month subscription service. Complete 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 including the United States and Canada. Included in this database is NPA (area code), NXX (exchange), country, state, county, latitude, longitude, LATA, timezone, day light saving, population, FIPS, MSA, PMSA, CBSA and ZIP code.