Local area code changes

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.

Local area code changes by state

Ohio - New 440/436 area code overlay

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.

Minnesota - New 507/924 area code overlay

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.

South Carolina - New 864/821 area code overlay

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.

New York - New 716/624 area code overlay

To ensure a continuing supply of new telephone numbers, the New York Public Service Commission has approved an all-services area code overlay for the 716 area code region. The 716 area code is in the western portion of New York and includes all or parts of Allegany, Cattaraugus, Chautauqua, Erie and Niagara counties, and serves communities including, but not limited to, Buffalo, Jamestown, Cheektowaga, Tonawanda, Niagara Falls, and West Seneca. The new 624 area code will serve the same geographic area currently served by the existing 716 area code.

Beginning November 16, 2023, customers in the 716 area code overlay region may be assigned a number in the new 624 area code when they request new service or an additional line. Customers receiving a 624 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 716 area code do today.

Download a copy of the bill message as shown on your Frontier bill.

Questions? Contact us or visit the New York Public Service Commission website at https://dps.ny.gov/telecommunications

Wisconsin - New 608/353 area code overlay

To ensure a continuing supply of telephone numbers, the Public Service Commission of Wisconsin has approved an all-services overlay for the 608 area code. The 608 area code serves the southwestern portion of the state including communities such as Beloit, Janesville, La Crosse, Middleton, Monroe, Platteville, Stoughton, Sun Prairie, and Wisconsin Dells. It also serves Madison, the state capitol. The new 353 area code will serve the same geographic area currently served by the 608 area code

Beginning September 15, 2023, customers in the 608 area code region may be assigned a number in the new 353 area code when they request new service or an additional line. Customers receiving the 353 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 608 area code do today.

Download a copy of the bill message as shown on your Frontier bill.

Questions? Contact us or visit the visit the Public Service Commission’s website at: https://psc.wi.gov/Pages/ForConsumers/MoreResources/AreaCodeExhaustion.aspx

Illinois - New 618/730 area code overlay

To ensure a continuing supply of telephone numbers, the Illinois Commerce Commission has approved an all-services overlay for the 618 area code. The 618 area code serves southern Illinois including the larger cities of Belleville, Granite City, O’Fallon, Alton, East St. Louis, Carbondale, and Collinsville, in addition to many smaller communities. The new 730 area code will serve the same geographic area currently served by the 618 area code.

Beginning July 7, 2023, customers in the 618 area code region may be assigned a number in the new 730 area code when they request new service or an additional line. Customers receiving the 730 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 618 area code do today.

Download a copy of the bill message as shown on your Frontier bill.

Questions? Contact us or visit the Illinois Commerce Commission website at icc.illinois.gov/programs/Area-Codes

Wisconsin - New 920/274 area code overlay

To ensure a continuing supply of telephone numbers, the Public Service Commission of Wisconsin has approved an all-services overlay for the 920 area code. The 920 area code serves most of the northeastern portion of the state, including communities such as Appleton, Beaver Dam, Berlin, Fond du Lac, Fort Atkinson, Green Bay, Manitowoc, Oshkosh, Ripon, Sheboygan, Sturgeon Bay and Watertown. The new 274 area code will serve the same geographic area currently served by the 920 area code

Beginning May 5, 2023, customers in the 920 area code region may be assigned a number in the new 274 area code when they request new service or an additional line. Customers receiving the 274 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 920 area code do today.

Download a copy of the bill message as shown on your Frontier bill.

Questions? Contact us or visit the visit the Public Service Commission’s website at: https://psc.wi.gov/Pages/ForConsumers/MoreResources/AreaCodeExhaustion.aspx

Ohio - New 513/283 area code overlay

To ensure a continuing supply of new telephone numbers, the Public Service Commission of Ohio has approved an all-services area code overlay for the 513 area code, which serves southwest Ohio including the communities of Cincinnati, Cleves, Forest Park, Hamilton, Lebanon, Maineville, Mason, Miamitown, Middletown, Norwood, Oxford, Trenton, and West Chester. The new 283 area code will serve the same geographic area currently served by the existing 513 area code.

Who will be affected and when does the new 283 area code become effective?

Beginning April 28, 2023, customers in the 513 area code overlay region may be assigned a number in the new 283 area code when they request new service or an additional line. Customers receiving a 283 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 513 area code do today.

Download a copy of the bill message.

Questions? Contact us or visit the Public Service Commission of Ohio website at: https://puco.ohio.gov/utilities/telecom

California (559) area code webcast notice

The California Public Utilities Commission (CPUC) will begin the process to introduce a new area code to the area now served by the 559 area code, as the 559 area code is expected to be depleted of phone numbers by September 2025. The telecommunications service providers have proposed to introduce the new area code using the overlay method. Adding a new area code to the area now served by the 559 area code will provide additional prefixes and new telephone numbers for the 559 customers. The proposed overlay, pending CPUC approval, will allow all customers to keep their current phone numbers, including their area code.

The CPUC has made available a recorded webcast to inform the public about the new area code addition. Topics to be discussed in the recorded webcast include: (1) History of the 559 area code; (2) Area code relief process; (3) Area code relief methods; (4) Effects of the proposed overlay; and (5) Implementation timeline of the proposed overlay. The recorded webcast will be available to view and download at https://www.cpuc.ca.gov/AreaCodes/ beginning April 4, 2023. Comments about the information presented in the webcast may be submitted to the CPUC Numbering Staff by e-mail at Numbering_Help@cpuc.ca.gov, or by postal mail to 505 Van Ness Ave., San Francisco, CA 94102 by May 4, 2023.

Download a copy of the 559 area code webcast notice English or Spanish.

New York - New 845/329 area code overlay

To ensure a continuing supply of new telephone numbers, the New York Public Service Commission has approved an all-services area code overlay for the 845 area code region. The 845 area code serves all or parts of Columbia, Delaware, Dutchess, Greene, Orange, Putnam, Rockland, Sullivan, and Ulster counties, including a portion of Westchester County. The new 329 area code will serve the same geographic area currently served by the existing 845 area code.

Beginning March 24, 2023, customers in the 845 area code overlay region may be assigned a number in the new 329 area code when they request new service or an additional line. Customers receiving a 329 area code will still be required to dial the area code and phone number for all local calls, just as customers with telephone numbers from the 845 area code do today.

Download a copy of the bill message on your Frontier bill.

Questions? Contact us or visit the New York Public Service Commission website.

What’s not changing

  • Your telephone number, including current area code.
  • The price of a call, coverage area, or other rates and services.
  • Whatever is considered a local call will remain a local call.
  • Continue to dial 1 + area code + telephone number (eleven digits) for local calls within and between the overlay area codes, and 1+10 digits for long distance calls.
  • In an emergency, dial 911.
  • If 211, 311, 411, 511, 611, 711 or 811 services are currently available in your community, no extra digits are needed.

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