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903 Area Code

903 Cities & Prefixes  -  430 Cities & Prefixes

In November, 2001, the Commission approved a second area code for 903. The new area code, an overlay, is 430.

Dates to remember:

  • Saturday July 20, 2002 - You can get in the habit of dialing ten digits to place a local call. The ten digits you need to dial are area code 903 and your seven-digit telephone number. You can place local calls dialing either seven or ten digits. The new area code, 430, is not yet available to be assigned.

  • Saturday, Feb. 15, 2003 - You must dial ten digits to place a local call. For approximately 60 days you will get a recorded message reminding you to dial ten digits if you have dialed only seven. After that, your call will not go through. The new area code, 430, becomes official in April, 2003 and can be assigned.

  • Saturday, April 19, 2003 - Your call will not go through and you will receive no reminder to dial ten digits if you have only dialed seven.

To do checklist:

  • Revise printed materials such as personal and business checks, business cards, mailing labels, advertising and promotional materials, business directories, invoices, product packaging and Internet and Web Site information to indicate your local number requires dialing ten digits for the call to go through.
  • Reprogram or change burglar and fire alarm systems, automatic dialers, modems, cell phones, mobile phones, speed calling lists, fax machines and pagers to handle the new area code.
  • Notify your friends and relatives. Businesses should inform vendors, suppliers, customers, business associates and branch offices.

Special calling plans:
If you have extended local service (ELS), all these calls remain local and the rate does not change. Once the new area code is available for assignment, numbers could contain either area code.


Cities and prefixes for each area code have been provided by the North American Numbering Plan Administration (NANPA), which oversees the area code number assignment system. This information will change as new prefixes are added or returned.

Prefix information will be updated periodically from the NANPA database of Texas prefixes in use in each area code. All prefixes listed on the Texas Area Codes site reflect NANPA numbering data through June, 2009. Because of the way telephone data is assembled, some cities may not be on the list. If you feel any city is not listed or is listed incorrectly, please send the city, prefix, and area code to areacode@puc.state.tx.us and it will be researched and added if NANPA’s information coincides. Any questions or comments about the Texas Area Codes section of the PUC site should also be sent to this address.

Texas Area Codes
210  214  254  281  325  361  409  430 
432  469  512  682  713  806  817  830 
832  903  915  936  940  956  972  979