New 572 Area Code, mandatory 10-Digit Dialing starts April 24 in Central Oklahoma

Effective April 24, all residential and business consumers in Central Oklahoma’s 405 area code will need to make calls using the 10-digit telephone number (area code + the 7-digit telephone number).  Calls that are now local will continue to be local, even with the 10-digit dialing requirement.

This will impact TDS Telecom (TDS) customers in areas of Choctaw, Jones, Verden, Union City and Gracemont, Oklahoma. Please see map for the current 405 area code region.

The Oklahoma Corporation Commission ordered an area code overlay for the 405 Area Code on Jan. 8, 2020.  An overlay does not require customers to change their existing area code, but it does ensure a continuing supply of telephone numbers. The new 572 area code will be added and share the same region as the existing 405 area code. Beginning May 24, 2021, new telephone lines or services may be assigned numbers using the new 572 area code.  

Changes for customers include:

·         Customers will need to dial 10-digits (area code + 7-digit telephone number) for every local call.

·         For the new dialing procedures, customers may need to reprogram or upgrade your equipment if you use specialized equipment like a PBX, electronic telephone sets, auto-dial systems, or multi-line systems.

·          Some automatically dialed calls may require reprogramming to include the new dialing procedure. These calls may include: life safety systems, fax machines, Internet dial-up numbers, alarm and security systems, speed dialers, call forwarding settings, voicemail services, and similar functions.

·         Check your websites, business stationery, advertising materials, personal checks, contact information and your ID tags to ensure the area code is included.

·         If you seek new phone service after May 24, you may be assigned a phone number with the 572 area code.

What will remain the same:

·         Your current telephone number, including current area code, will not change.

·         You will continue to dial 1 + area code + telephone number for all long distance calls.

·         What is a local call now will remain a local call.

·         The price of a call, coverage area, or other rates and services will not change due to the overlay.

·         You can still dial just three digits to reach 911.  You can also dial three digits to reach 211, 311, 411, 511, 611, 711, and 811, 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.   

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 before Oct. 24, 2020.  

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

If you have any questions regarding any information provided in this notice, call 1-888-CALL-TDS or visit or  Public Utility Division Consumer Services (open Monday-Friday, 8 a.m. – 4:30 p.m.) 405-521-2331

Media Contact: Cheryl McCollum | Associate Manager - Communications | TDS Telecom |  

TDS Telecommunications LLC (TDS Telecom/TDS®) delivers high-speed internet, TV entertainment, and phone services to a mix of small to mid-sized urban, suburban and rural communities throughout the U.S. With 1.2 million connections, TDS is a rapidly growing technology company. Powered by fiber-optics and new industry-leading technologies, TDS delivers up to 8 Gigabit internet speeds and offers internet-protocol based TV entertainment solutions along with traditional phone services. TDS also offers businesses VoIP advanced communications solutions, dedicated internet service, data networking, and hosted-managed services. Visit

TDS Telecom, headquartered in Madison, Wis., employs 3,400 people and is a subsidiary of Telephone and Data Systems, Inc. [NYSE: TDS]. Founded in 1969, Telephone and Data Systems provides wireless, broadband, video and voice; and hosted and managed services to approximately 6 million connections nationwide through its businesses: UScellular, TDS Telecom, and OneNeck IT Solutions. Visit

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