Once in a while, we need to introduce new area codes so we can make more phone numbers available. This is called an area code overlay.
When this happens, you may have to dial your own area code to make a local call.
To ensure a continuing supply of telephone numbers, the California Public Utilities Commission has approved an all-services overlay for the 530 area code. The 530 area code serves most of northeastern California, covering all or portions of Alpine, Butte, Colusa, El Dorado, Glenn, Humboldt, Lassen, Modoc, Mono, Nevada, Placer, Plumas, Shasta, Sierra, Siskiyou, Solano, Sutter, Tehama, Trinity, Yolo and Yuba counties. It serves communities such as Chico, Davis, El Dorado Hills, Oroville, Paradise, Placerville, Red Bluff, Redding, South Lake Tahoe, Truckee, Woodland, and Yuba City, as well as unincorporated areas. The new 837 area code will serve the same geographic region currently served by the 530 area code.
Beginning January 31, 2025, customers in the 530 area code region may be assigned a number in the new 837 area code when they request new service or an additional line. Customers receiving the 837 area code will be required to dial 1+10 digits for all local calls, just as customers with telephone numbers from the 530 area code do today. Mobile phone customers receiving 837 numbers may dial either 10 digits or 1+10 digits.
To ensure a continuing supply of telephone numbers, the Public Utility Commission of Texas has approved an all-services overlay for the 281/346/713/832 area code overlay region. The 281/346/713/832 NPA serves the greater Houston metropolitan area and surrounding suburban cities such as Baytown, League City, Missouri City, Pasadena, Pearland, Sugar Land, The Woodlands and many other smaller communities. The new 621 area code will serve the same geographic area currently served by the 281/346/713/832 area codes.
Beginning January 23, 2025, customers in the 281/346/713/832 area code overlay region may be assigned a number in the new 621 area code when they request new service or an additional line. Customers receiving the 621 area code will be required to dial 10 digits for all local calls, just as customers with telephone numbers from the 281/346/713/832 area codes do today. Mobile phone customers receiving 621 numbers may dial either 10 digits or 1+10 digits.
To ensure a continuing supply of telephone numbers, the California Public Utilities Commission has approved an additional all-services overlay for the 213/323 area code overlay region. The 213/323 area code overlay region serves downtown Los Angeles, Alhambra, Bell, Bell Gardens, Beverly Hills, Commerce, Cudahy, Glendale, Hawthorne, Huntington Park, Inglewood, Lynwood, Maywood, Montebello, Monterey Park, Pasadena, Rosemead, South Gate, South Pasadena, Vernon, West Hollywood, and unincorporated portions of Los Angeles County. The new 738 area code will serve the same geographic area currently served by the 213 and 323 area codes.
Beginning November 1, 2024, customers in the 213/323 area code region may be assigned a number in the new 738 area code when they request new service or an additional line. Customers receiving the 738 area code will be required to dial 1+ the area code and phone number for all local calls, just as customers with telephone numbers from the 213/323 area code overlay region do today.
To ensure a continuing supply of telephone numbers, the new 357 area code will be added to the current 559 area code region. This is known as an area code overlay.
The overlay does not require you to change your existing area code or phone number.
Starting August 26, 2024, you should begin dialing 1+ area code + telephone number whenever you place a call. If you forget and dial just seven digits, your call will still be completed.
Effective February 26, 2025, you must dial 1+ area code + telephone number on all local calls. If you do not dial 1+ area code + telephone number, your calls will not complete and a recording will instruct you to hang up and dial again, including the area code.
Beginning March 26, 2025, new telephone lines or services may be assigned the new 357 area code. If you have a number in the new 357 area code, you must dial 1+ area code + telephone number or the call will not complete.
The California Public Utilities Commission (CPUC) will begin the process to introduce a new area code to the area now served by the 657/714 area code, as the 657/714 area code is expected to be depleted of phone numbers by March 2027. Pending approval by the CPUC, the new area code will be introduced on top of the 657/714 area code using the overlay method.
The CPUC will have a recorded webcast to inform the public about the overlay. Topics to be discussed in the recorded webcast include: (1) History of the 657/714 area code; (2) Area code relief process; (3) Overlay relief method; (4) Effects of the pending overlay; and (5) Implementation periods. The recorded webcast will be available at https://www.cpuc.ca.gov/AreaCodes/ beginning July 19, 2024. Comments about the 657/714 area code overlay may be submitted to the CPUC Public Advisor's Office by e-mail at public.advisor@cpuc.ca.gov, or by postal mail to 320 W. 4th Street, Suite 500, Los Angeles, CA90013 by August 19, 2024. A copy of the webcast presentation slides may be requested by contacting the CPUC Public Advisor's Office by email at public.advisor@cpuc.ca.gov, or by phone at (866) 849-8390.
To ensure a continuing supply of telephone numbers, the Public Utilities Commission of Ohio has approved an all-services overlay for the 440 area code. The 440 area code serves the northern portion of Ohio which includes all or parts of the southern, western, and eastern suburbs of Cleveland. The 440 NPA also includes the larger cities and communities, such as but not limited to, Ashtabula, Eastlake, Elyria, Lorain, Mentor, North Olmsted, North Ridgeville, North Royalton, Parma, Solon, Strongsville, Westlake, and Willoughby. The new 436 area code will serve the same geographic area currently served by the 440 area code.
Beginning March 1, 2024, customers in the 440 area code region may be assigned a number in the new 436 area code when they request new service or an additional line. Customers receiving the 436 area code will be required to dial the area code and phone number for all local calls, just as customers with telephone numbers from the 440 area code do today.
Download a copy of the bill message on your Frontier bill.
Questions? Contact us or visit the Public Utilities Commission of Ohio website.
To ensure a continuing supply of telephone numbers, the new 924 area code will be added to the current 507 area code region. This is known as an area code overlay.
The overlay does not require you to change your existing area code or phone number.
Staring January 30, 2024, you should begin dialing the area code + telephone number whenever you place a call. If you forget and dial just seven digits, your call will still be completed.
Effective July 30, 2024, you must dial the area code + telephone number on all calls, including calls within the 507 area code. if you do not dial the area code + telephone number, your calls will not complete and a recording will instruct you to hang up and dial again, including the area code.
Beginning August 30, 2024, new telephone lines or services may be assigned the new 924 area code. If you have a number in the new 924 area code, you must dial the area code + telephone number or the call will not complete.
Download a copy of the bill message on your Frontier bill
Questions? Contact us or visit the Minnesota Public Utilities Commission website.
To ensure a continuing supply of telephone numbers, the new 821 area code will be added to the current 864 area code region. This is known as an area code overlay.
The overlay does not require you to change your existing area code or phone number.
Staring January 19, 2024, you should begin dialing the area code + telephone number whenever you place a call. If you forget and dial just seven digits, your call will still be completed.
Effective July 19, 2024, you must dial the area code + telephone number on all calls, including calls within the 864 area code. if you do not dial the area code + telephone number, your calls will not complete and a recording will instruct you to hang up and dial again, including the area code.
Beginning August 19, 2024, new telephone lines or services may be assigned the new 821 area code. If you have a number in the new 821 area code, you must dial the area code + telephone number or the call will not complete.
Download a copy of the bill message on your Frontier bill.
Questions? Contact us or visit the Public Service Commission of South Carolina website.
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