North American Local Exchange NPA NXX Database

NALENND™ is the field proven telephone numbering plan database of all active area code and exchange assignments within the North American Numbering Plan (NANP).


Complete coverage of all telephone area codes and exchanges within the United States and its territories, Canada, Anguilla, Antigua & Barbuda, the Bahamas, Barbados, Bermuda, the British Virgin Islands, the Cayman Islands, Dominica, the Dominican Republic, Grenada, Jamaica, Montserrat, St. Kitts and Nevis, Sint Maarten, St. Lucia, St. Vincent and the Grenadines, Trinidad and Tobago, and Turks & Caicos.

Compiled directly from definitive industry and regulatory sources, NALENND™ delivers accurate and reliable telecom data suitable for use in a variety of mission critical applications.

Produced: on or before 5th calendar day monthly
Current Release: January 4, 2019
Distribution Frequency: monthly or quarterly (issue date: January, April, July, October)
Distribution Format: Internet download

North American Local Exchange NPA NXX Database™ Editions
 Wire Center Edition  Rate Center Edition  Platinum Edition  Gold Edition  
NPA (Area Code)YesYesYesYes
NXX (Exchange)YesYesYesYes
1,000 BlockYesYesYesYes
Pooling IndicatorYesYesYesYes
Block ContaminatedYesYesYesNo
NXX Line Type (wireless/landline)YesYesYesYes
NXX Detail Type (function)YesYesNoNo
Disconnect IndicatorYesNoNoNo
Assignment DateYesNoNoNo
Effective DateYesNoNoNo
Rate Center - Rate Exchange Area Information
Rate Center TypeYesYesYesNo
Number Pooling RequirementsYesYesYesNo
V&H CoordinatesYesYesNoNo
Abbreviated Rate Center NameYesYesNoNo
Full Rate Center NameYesYesYesYes
State or ProvinceYesYesYesYes
Time Zone & DSTYesYesYesNo
Latitude and LongitudeYesYesYesYes
ZIP or Postal Codes1YesYesYesYes
County or County Equivalent Codes2YesYesYesYes
Current Metropolitan Statistical Area Codes3 (CBSA)YesYesYesYes
Historical Metropolitan Statistical Area Codes4 (MSA)YesYesYesYes
Major Trading Area (MTA)YesYesNoNo
Basic Trading Area (BTA)YesYesNoNo
Wire Center Information
Wire Center NameYesYesYesNo
V&H CoordinatesYesNoNoNo
Switch CLLI™ CodeYesYesYesYes
Central Office FeaturesYesNoNoNo
Carrier Information
OCN TypeYesYesYesYes
Company NameYesYesYesYes
Common NameYesYesYesYes
Holding or Management CompanyYesYesYesNo
Headquarters AddressYesYesNoNo
Area Code Split-Overlay Information
Original or Parent NPAYesYesYesYes
NPA Cross ReferenceYesYesYesYes
NPA Overlay-Split TypeYesYesYesYes

1 Each NPA NXX record may contain up to four U.S. Zip codes or four Canadian Postal FSA codes.
2 U.S. FIPS county codes or Canadian Census Division codes may contain up to three.
3 U.S. CBSA codes or Statistics Canada CMA/CA codes.
4 U.S. (only) historical CMSA, PMSA, and MSA codes.