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Skip Navigation LinksPUC > Communications > General Communications Information > Area Codes > 714 Area Code > NPA 714 CPUC approved First customer notice

Area Code Overlay Approved for 714 Area Code 

To ensure a continuing supply of telephone numbers, the 657 area code will be added to the area served by 714.  Get ready to change the way you dial your calls!

Area Code 714 / 657 Overlay Map

Who Will be Affected?

The new 657 area code will serve customers in the same geographic region as the current 714 area code, which includes the communities of Anaheim, Brea, Buena Park, Costa Mesa, Cypress, Fountain Valley, Fullerton, Garden Grove, Huntington Beach, La Habra, La Mirada, La Palma, Orange, Placentia, Santa Ana, Westminster, and Yorba Linda. This is known as an area code overlay.

What is an Area Code Overlay?

An overlay is the addition of another area code (657) to the same geographic region as an existing area code (714).  An overlay does not require customers to change their existing area code.

What Will be the New Dialing Procedure?

  • To complete calls from a landline phone, the new dialing procedure requires callers to dial 1 + area code + telephone number.  This means that all calls in the 714 area code that are currently dialed with seven digits will need to be dialed using 1+ area code + telephone number.
  • To complete calls from a cellular or mobile phone, callers may dial the area code + telephone number or 1 + area code and telephone number whenever placing a call from a phone number with the 714 or 657 area code.

When Will the Change Begin?

  • Effective February 23, 2008, you should begin using the new dialing procedure whenever you place a call from the 714 area code.  If you forget and use the old dialing procedure of dialing just seven digits, your call will still be completed.
  • Beginning August 23, 2008, you must use the new dialing procedure for all calls.  After this date, if you do not use the new dialing procedure, your call will not be completed, and a recording will instruct you to hang up and dial again.
  • Beginning September 23, 2008, new telephone lines or services may be assigned numbers with the 657 area code.

What Will You Need to Do?

In addition to changing your dialing procedure, all services, automatic dialing equipment, or other types of equipment that are programmed with a 7-digit number will need to be reprogrammed to use the new dialing procedure.  Some examples are life safety systems, fax machines, Internet dial-up numbers, alarm and security systems, gates, speed dialers, call forwarding settings, voicemail services, and similar functions.  You may also want to check your business stationery or advertising materials to ensure the area code is included.

What Will Remain the Same?

  • Your telephone number, including current area code, will not change.
  • The price of a call, coverage area, or other rates and services will not change due to the overlay.
  • What is a local call now will remain a local call regardless of the number of digits dialed.
  • You can still dial just three digits to reach 911, as well as 211, 311, 411, 511, 611, 711 and 811.

Who May You Contact with Questions?

If you have any questions regarding information provided in this notice, please call (service provider’s name and number) or access the following websites for more information: (service provider’s website) or


Last Modified: 2/22/2008

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