New Area Code coming to the 405

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OKLAHOMA CITY, OK (September 24, 2020) – The Oklahoma Corporation Commission (OCC) today reminds residential and business customers served by the 405-area code to prepare for the introduction of the new 572 area code. The 572-area code will be added as an overlay to the 405 regions to ensure a continuing supply of telephone numbers for the area. An overlay is the addition of another area code (572) to the same geographic region served by an existing area code (405).

The OCC ordered an area code overlay for the 405 Area Code on January 8, 2020. An overlay does not require customers to change their existing area code.

A six-month permissive dialing period will begin on October 24, 2020 to give consumers adequate time to adjust to the changes. During this period, local calls can be made with either 7 or 10 digits and all calls that are local will continue to be local even though you dial 10 digits.

Beginning April 24, 2021, mandatory dialing will occur where all local calls made within the Oklahoma 405 area code will have to be placed using the 10 digit telephone number (area code + the 7-digit telephone number).

Beginning May 24, 2021, new telephone lines or services may be assigned numbers using
the new 572 area code.

The most important facts for consumers to know about the upcoming 405/572 area code overlay are:

  • Your current telephone number, including current area code, will not change
  • If you seek new phone service after May 24, 2021, you may be assigned a phone number with the 572-area code.
  • You will need to dial area code + telephone number for all local calls.
  • You will continue to dial 1 + area code + telephone number for all long-distance calls.
  • 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.
  • You can still dial just three digits to reach 911. You can also dial three digits to reach 211 and 811, as well as 311 and 511, where available.

Please remember to identify your telephone number as a 10-digit number (area code + 7-digit telephone number), and include the area code when giving the number to friends, family, business associates and customers, etc.

Customers should ensure all services, automatic dialing equipment, applications, software, or other types of equipment recognize the new 572 area code as a valid area code. Examples include life-safety systems, fax machines, Internet dial-up numbers, alarm and security systems, gates, ankle monitors, speed dialers, mobile phone contact lists, call forwarding settings, voicemail services, and similar functions. Be sure to check your business stationery, advertising materials, personal checks, and your personal or pet ID tags to ensure the area code is included in your telephone number.

Important safety and security equipment, such as medical alert devices, and alarm and security systems must be programmed to use 10-digit dialing. Many systems operate on 10-digit dialing by default but some older equipment may still use 7 digits. Please contact your medical alert or security provider if you are not sure whether your equipment needs to be reprogrammed to accommodate the upcoming change to 10-digit local dialing. Any needed reprogramming of alarm and home security equipment should be done between October 24, 2020 and April 24, 2021.

Remember that all local calls must be programmed using 10-digits and you need to add ‘1’ for all long-distance calls.

For additional information, please visit the OCC website at http://occeweb.com/ or contact your local telephone service provider.