847 Area Code
Suanne Forte
The North American Numbering Plan (NANP) is the telephone numbering system within which the Public Switched Telephone Network is managed in the United States, Canada, and some Caribbean countries by the North American Numbering Plan Administrator (NANPA). The NANP is divided into smaller Numbering Plan Areas that are each identified by a three-digit code, commonly known as an area code. Telephone numbers in the NANP are structured in the format NPA-NXX-XXXX, in which
The Federal Communications Commission (FCC) has exclusive jurisdiction over telephone numbering in the United States but has delegated specific authority to state regulatory agencies. Tasked with the authority granted by the FCC, the CPUC conducts area code relief and enforces number conservation in California in accordance with Public Utilities Code Section 7930-7943.
California currently has 40 area codes. A new area code is added to a geographic area when there are no more three-digit prefixes available in the existing area code. Area codes are added in the form of a geographic split or an overlay. California has added fourteen area codes using the overlay method since 2006.
211 - Community information and referral services. 211 service is provided by local community-based or government organizations that are authorized by the CPUC to use the 211 code to provide information and referrals to health and human services.
811 - Call-before-you-dig phone number for access to location of buried utilities. Underground Service Alert, a nonprofit organization, manages 811 calls and operates two call centers: USA North 811 for northern California and Dig Alert for southern California.
988 - National Suicide Prevention Lifeline. The United States Department of Health and Human Services' Substance Abuse and Mental Health Services Administration, in partnership with the Department of Veterans Affairs, administers the National Suicide Prevention Lifeline, which is a national network of approximately 170 local and state funded crisis centers.
The 559 area code is expected to run out of available prefixes by September 2025. On December 14, 2023, the CPUC approved an overlay and a new area code in Decision 23-12-012 to provide additional numbering resources in the geographic region served by the 559 area code. The new area code to overlay the 559 area code is the 357 area code.
The California Public Utilities Commission (CPUC) today reminded consumers that the new 350 area code will soon be available in the existing 209 area code region. With new telephone numbers in the 209 area code region in high demand, the CPUC in May 2022 approved adding a new 350 area code to overlay the existing 209 area code region.
Beginning November 28, 2022, customers in the 209 area code overlay region may be assigned a number in the new 350 area code when they request new service or an additional line. Customers receiving a 350 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 209 area code do today.
Customers should continue to identify their telephone number as a 10-digit number (3-digit area code + 7-digit telephone number) and include the area code when giving the number to friends, family, business associates, and others. Customers should ensure their websites, personal and business stationery and printed checks, advertising materials, contact information, and personal or pet ID tags include the area code.
Customers should ensure that all services, automatic dialing equipment, or other types of equipment recognize the new 350 area code as a valid area code and should continue to store or program telephone numbers as 10-digit numbers. Some examples include but are not limited to: stored telephone numbers in contact lists in wireless or cordless phones, PBXs, fax machines, Internet dial-up numbers, speed dialers, call forwarding settings, voicemail services, medical alert devices, safety alarm security systems and gates, ankle monitors, and/or other similar equipment.
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On January 1, 1947, the first North American area codes were issued in regions where standard 7 digit dialing codes were scheduled to be exhaused the soonest. By adding a 3 digit prefix to a 7 digit local number, this allowed for hundreds of millons of new phone numbers to be issued. The North American Numbering Plan Administration (NANPA) is reponsible for further divisions or adjustments to current area codes.
State and county names included on the file provide initial help in locating census tracts of interest (all census tracts are nested within counties). To determine the census tract for a particular location within a county, please see the Federal Financial Institutions Examination Council's FFIEC Geocoding/Mapping System.
Errata: On July 3, 2019, the Rural-Urban Commuting Area (RUCA) Codes data product was revised to correct a programming error affecting the 2010 secondary RUCA codes. The revision corrects the secondary codes of 10,909 of 74,002 census tracts. Secondary RUCA codes may be used to classify census tracts into rural and urban categories. The revised secondary codes result in an increase in the number of census tracts classified as rural. The 2010 primary RUCA codes were not affected by this revision.
To ensure new telephone numbers are available, the Tennessee Public Utility Commission approved the addition of the new 729 area code to the geographic region served by the 423 area code. This process is known as an area code overlay.
An overlay is the addition of another area code (729) to the same geographic region as an existing area code (423). An overlay does not require customers to change their existing area code but does require using a new dialing procedure to complete calls.
Anyone with a 423 area code will be affected. The 423 area code covers two non-contiguous regions in eastern Tennessee, serving communities such as Chattanooga, Bristol, Johnson City and Kingsport, as well as many other smaller communities. The new 729 area code will serve the same geographic region currently served by
the existing 423 area code.
All calls in the 423 area code that are currently dialed with seven digits will need to be dialed using the area code + 7-digit telephone number. The same dialing procedure will apply to telephone numbers that are assigned in
the new 729 area code.
Effective August 5, 2024, dial the area code + telephone number whenever you place a call, including calls within your
same area code. If you forget and dial just seven digits, your call will still be completed. Beginning February 5, 2025, you must dial the area code + telephone number on all calls, including calls within your same area code. On and after this date, if you do not dial the area code + telephone number, your call will not be completed, and a recording will instruct you to hang up and dial again, including the area code.
Beginning March 5, 2025, new telephone lines or services may be assigned numbers with the new 729 area code. If you have a number in the new 729 area code, you must dial the area code + telephone number or the call will not complete.
CountryCode.org is your complete guide to call anywhere in the world. The calling chart above will help you find the dialing codes you need to make long distance phone calls to friends, family, and business partners around the globe. Simply find and click the country you wish to call. You'll find instructions on how to call that country using its country code, as well as other helpful information like area codes, ISO country codes, and the kinds of electrical outlets and phone jacks found in that part of the world. Making a phone call has never been easier with CountryCode.org.