Area Code Rate Center Database

This Area Code Time Zone database provides a list of all active area codes with time zone information, prefixes (NPA/NXX)* and Rate Center Names (a Rate Center is how the telecom industry identifies an exchange's service area). It includes highly accurate Time Zones and Daylight Saving Time information.

*NPA/NXX - NPA stands for Numbering Plan Area. It is simply the telephone area code. The NXX stands for Exchange or Central Office Code. It is often referred to as a prefix.

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Keep your systems current by regularly downloading database updates during your subscription period.

Monthly Updates

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

Download Options

Immediate download link from our site, a free utility for custom files, or an FTP directory (upon request) auto updated as new releases occur.

Area Codes with Rate Center Database

This version adds unique, clean, manually verified Rate Center information to our standard Area Code Time Zone 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. Industry rate center names are heavily abbreviated such as: “NWYRCYZN01” (our version is: New York City Zone 1).

This Area Code Time Zone database product is updated regularly as Area Code Time Zone database is added and is released monthly. The price includes an initial download and any updates made available throughout your subscription period. Learn more: View the 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. 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.

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

This area codes time zone info is 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 Codes by ZIP Code Database
Area Code Data with Time Zones, Rate Center, Operating Company