Area Codes, Rate Centers, Carriers

Area Codes by Operating Company

This Area Code Database product provides a list of all active area codes, prefixes (NPA NXX)*, Rate Center Names (A Rate Center is how the telecom industry identifies an exchange's service area) and Operating Company Number (OCN). Our NPA NXX database includes highly accurate Time Zones and Daylight Saving Time information.

*NPA NXX - NPA (Numbering Plan Area) is commonly known as the Area Code. The NXX (Exchange or Central Office Code) is often referred to as the prefix.

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Based on frequency of change, we recommend you download the latest version of this particular database on a regular basis.

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NPA NXX Database with Rate Center and Operating Company Number

This NPA NXX database version adds unique, clean, manually verified Rate Center Names and Operating Company Number to our standard Area Code Database. This intuitive element is incredibly helpful for reporting (such as a Call Accounting Software report) or for it to appear in the Caller ID of a telephony application. Telecom industry rate center names are heavily abbreviated such as: “NWYRCYZN01” (our version is: New York City Zone 1).

This NPA NXX Database product is updated regularly as area code time zone data is added and is released monthly. The price includes an initial download and any updates made available throughout your subscription period. Learn more: View Operating Company Number product documentation / Watch our Accuracy Matters video

Database Specs

Data Format - CSV

Comma-Separated Values (CSV) Text File

Area Code

All standard area codes are listed. Toll-free Area codes such as 800, 866, 877 and other specialty area codes are not included in this NPA NXX Database. The first digit is in the range of 2-9, the second digit can be a 0-8, and the third digit can be a 0-9.

Prefix

The prefix (also called the Exchange or Central Office Code) is next. This is referred to as the ‘NXX’. The first digit is in the range of 2-9, the second and third digits can be a 0-9.

Rate Center Names

This version includes an intuitive rate center name. Industry rate center names are limited to 10 characters therefore are heavily abbreviated and cryptic. We’ve translated as many as possible into a more meaningful label (35 characters), plus we use upper and lower case the names. This is ideal for using in telephony or call accounting reports.

Operating Company

This version also includes the operating company (telco carrier).

State Abbreviation

This is the 2-character standard (U.S. Postal Service) state abbreviation. We also include a file called, ‘states.txt’ which will list the state name for each abbreviation.

Time Zone

U.S. Time Zones are in a standard format which is the number of hours from Coordinated Universal Time (UTC) which was formerly called Greenwich Mean Time (GMT). Greenwich is where the Royal Observatory is located (Southeast London). West of UTC is negative and so all records have negative numbers. The zones range from -5 (Eastern Standard Time) to -10 (Hawaiian Standard Time).

Daylight Savings Flag

If the area covered by this area code / prefix observes Daylight Saving Time, then the last field will be ‘Y’, otherwise ‘N.’

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Limitations

Cannot be resold, transferred, or used to compete with GreatData.com (as outlined in our license agreement).

Related Links

Area Code Database with Time Zones
Area Code Data with Time Zones, Rate Center
Area Codes by ZIP Code Database