Area codes 850 and 448 are telephone area codes in the North American Numbering Plan for the Florida panhandle, including Pensacola, Tallahassee and Panama City. [1] Area code 850 was created in 1997 in a split from 904, and area code 448 was assigned as a second code to the same area in an overlay plan in 2019, and mandatory ten-digit local calling began in May 2021.
When the North American Numbering Plan (NANP) was created by AT&T in 1947, the entire state of Florida was assigned the area code 305. In 1953, the western part of the peninsula from the Tampa Bay area southward received area code 813, and in 1965, North Florida from the panhandle to Jacksonville was assigned area code 904 to mitigate the state's growth in population and telephone service. For thirty years, North Florida remained a single numbering plan area (NPA) until 1995, when the southern part of the territory was split off with area code 352. Continued demand put new pressure on the numbering resources, and within a year, further relief action was in the planning stage. The result was that the far western part of the panhandle (south of the Alabama state line) became a new numbering plan area with area code 850. Permissive dialing in the numbering plan area began June 23, 1997, and mandatory dialing commenced on March 23, 1998. [2]
Area code 850 was originally intended to be the relief code used in the 1995 split of the 904 area code. The Jacksonville, Tallahassee, Panama City and Pensacola LATAs, and the Florida portion of the Mobile, Alabama, LATA were to retain 904 while the Daytona Beach and Gainesville LATAs changed to 850. This plan was scrapped in favor of a plan that moved only the Gainesville LATA to a new area code, this time 352 (FLA on the telephone keypad) and kept the Daytona Beach LATA in then-904 along with the rest of northern Florida. The reason for changing from 850 to 352 was a potential dialing conflict with the 407-850 office code and some rate centers in the Gainesville LATA with 7-digit local calling into the 407 area code. Political pressure from the tourism industry in Daytona Beach resulted in that area being kept in the then-904 area code.
The Florida Public Service Commission had planned a three-way split of 904 to take place in 1997. The Jacksonville LATA would move to a proposed 234 area code while the Daytona Beach LATA would change to the 386 area code. The panhandle would have retained the 904 area code. Outcry from the public and business community in the Jacksonville region was significant since Jacksonville is the largest urban area in northern Florida, and would thus face a greater expense and burden to change phone numbers, reprogram cell phones and update printed materials than other parts of the area code. When an area code is split, normal practice calls for the old area code to be retained by the largest city in the former area code territory in order to minimize disruption. There was also opposition from NANPA and the Federal Communications Commission. These two agencies objected because the split would have been unbalanced by creating a new code just for Daytona Beach. The Florida PSC changed course and adopted the plan that was ultimately implemented with the panhandle, including Tallahassee, [3] moving to 850 and Jacksonville and Daytona Beach retaining 904. [4] The 234 area code has since been put into service in Ohio as an overlay to area code 330.
Area code 850 exhausted its available supply of central office codes in May 2021. Based on previous exhaust forecasts, NANPA began relief planning to provide additional numbering capacity in the 850 region. An initial planning meeting was held on May 16, 2019, where industry members recommended an all-services overlay as the preferred relief method. NANPA subsequently filed a request with the Florida Public Service Commission to approve a new area code overlaying 850. The Florida Public Service Commission approved the industry's all-services overlay recommendation on November 5, 2019. The new area code, 448, was officially assigned to overlay 850. [5] Ten-digit dialing became mandatory on May 22, 2021. [6] The in-service date, when first central office code assignment can become effective, is June 22, 2021. The first central office code assignment within the 448 area code occurred on May 14, 2021.
The 850/448 overlay numbering plan area comprises the following cities.
Area codes 314 and 557 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. state of Missouri, serving the city of St. Louis and most of its inner-ring suburbs in neighboring St. Louis County. The numbering plan area is bordered to the west by area code 636, which serves St. Louis' outer suburbs to the west, south, and north. Across the Mississippi River to the east, 314 is adjacent to area code 618, which serves southern Illinois and most of Metro East. Area code 557 was added to the 314 numbering plan area on August 12, 2022, to form an overlay numbering plan.
Area codes 954 and 754 are the telephone area codes in the North American Numbering Plan (NANP) for Broward County, Florida. Notable cities in the numbering plan area are Fort Lauderdale, Plantation, Hollywood, Parkland, Sunrise, Pompano Beach, Coral Springs, Deerfield Beach, Davie, Weston, Dania Beach, Oakland Park and Pembroke Pines.
Area codes 805 and 820 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. The numbering plan area (NPA) includes most or all of the counties of San Luis Obispo, Santa Barbara, Ventura, and the southernmost portions of Monterey County. 805 was split from area code 213 in 1957, and area code 820 was added to the NPA in 2018, creating an area code overlay.
Ten-digit dialing is a telephone dialing procedure in the countries and territories that are members of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when dialing to initiate a telephone call. When necessary, the ten-digit number may be prefixed with the trunk code 1, which is referred to as 1+10-digit dialing or national format.
Area codes 561 and 728 are telephone area codes in the North American Numbering Plan (NANP) for Palm Beach County in the U.S. state of Florida. 561 was created on May 13, 1996, in a split of area code 407. The numbering plan area (NPA) comprises nearly every major city in the county, the largest of which being West Palm Beach, Boca Raton, Wellington, Boynton Beach, Jupiter, Delray Beach, and Belle Glade. On March 10, 2023, area code 728 was added to the same numbering plan area to form an all-services distributed overlay.
Area codes 920 and 274 are telephone area codes in the North American Numbering Plan (NANP) for a large area of eastern Wisconsin. Area code 920 was created on July 26, 1997, in a split of area code 414, one of the original North American area codes of 1947. 274 was added to the same numbering plan area (NPA) on May 5, 2023 to create an area code overlay.
Area code 352 is a telephone area code in the North American Numbering Plan for the area around Gainesville, Florida. It was split from area code 904 in 1995.
Area codes 909 and 840 are telephone area codes in the North American Numbering Plan for the far-eastern part of Los Angeles County and southwestern San Bernardino County in the U.S. state of California. Area code 909 was created on November 14, 1992, in an area code split of 909, and 840 was added to the numbering plan area to form an overlay complex effective February 23, 2021.
Area codes 541 and 458 are telephone area codes in the North American Numbering Plan (NANP) for most of the U.S. state of Oregon, excluding only the northwestern corner of the state. The service area includes the cities of Eugene, Springfield, Corvallis, Albany, Medford, Bend, Ashland, Klamath Falls, The Dalles, Burns, Lakeview, and Pendleton, as well as the coastal region from Lincoln County to the California border. Area code 541 was created in an area code split from area code 503 on November 5, 1995. Area code 458 was added to the same service area on February 10, 2010 to form an overlay.
Area codes 305, 786, and 645 are telephone area codes in the North American Numbering Plan (NANP) for Miami, Florida, Miami-Dade County, and the part of Monroe County in the Florida Keys in the United States. The mainland portion of Monroe County is served by area code 239.
Area codes 813 and 656 are area codes in the North American Numbering Plan for the U.S. state of Florida in the city of Tampa, Florida, and its surrounding areas, such as Zephyrhills and Oldsmar. In 2022, due to exhaustion of central office prefixes, area code 656 was added to the service area forming an overlay complex.
Area codes 876 and 658 are telephone area codes in the North American Numbering Plan (NANP) for Jamaica.
Area code 386 is a telephone area code in the North American Numbering Plan in the U.S. state of Florida. The numbering plan area comprises the counties of Columbia, Flagler, Hamilton, Lafayette, Suwannee, Union, the vast majority of Volusia County, and smaller portions of Alachua County and Putnam County. The Deltona–Daytona Beach–Ormond Beach metropolitan area is the most populous metro area in 386. It is one of the few area codes in North America that is not contiguous. The area code was created in an area code split of 904 on February 15, 2001.
Area codes 707 and 369 are telephone area codes in the North American Numbering Plan (NANP) for the northwestern part of the U.S. state of California. The area codes serve part of the northern San Francisco Bay Area, as well as the North Coast. Major cities in the area codes include Napa, Sebastopol, Vallejo, Benicia, Fairfield, Santa Rosa, Windsor, Healdsburg, Rohnert Park, Petaluma, Fort Bragg, Rio Vista, Crescent City, Eureka, Clearlake, Vacaville, Dixon, and Ukiah. 707 was created by a split of area code 415 on March 1, 1959. Area code 369 was added to the numbering plan area (NPA) on February 1, 2023, to form an overlay numbering plan in the service area.
Area codes 904 and 324 are telephone area codes in the North American Numbering Plan for most of the First Coast (northeast) region of the U.S. state of Florida. The numbering plan area comprises most of the metropolitan area of Jacksonville. It includes all of Duval County, St. Johns County, Nassau County, and Baker County, and almost all of Clay County. Area code 904 was created in an area code split of area code 305 in 1965. In 2024, the numbering plan received a second area code, 324 , through the creation of an overlay complex to mitigate central office code exhaustion and provide additional telephone numbers in the area.
Area codes 816 and 975 are telephone area codes in the North American Numbering Plan (NANP) for most of the Missouri side of the Kansas City metropolitan area, the St. Joseph area, and all or part of 15 surrounding counties in northwestern Missouri. The numbering plan area originally comprised most of the northern and western two-thirds of the state, bordering with Arkansas, Illinois, Iowa, Kansas, Nebraska, and Oklahoma, but has been reduced to a ribbon bordering Kansas. 816 is one of the original 86 area codes created in 1947. The numbering plan area was converted to an overlay complex with area code 975 in 2023.
Area codes 870 and 327 are telephone area codes in the North American Numbering Plan (NANP) for southern, eastern, and most of northern Arkansas. 870 was created on April 14, 1997, in a split from area code 501, Arkansas's original area code of 1947, and 327 was added as part of an overlay complex in 2024.
Area codes 330 and 234 are telephone area codes in the North American Numbering Plan (NANP) for a part of northeast Ohio. The numbering plan area (NPA) includes the cities of Akron, Canton, Youngstown, and Warren.
Area codes 843 and 854 are telephone area codes in the North American Numbering Plan (NANP) for a portion of the U.S. state of South Carolina that comprises roughly the eastern third and the southern tip. The numbering plan area (NPA) includes the Grand Strand, the Lowcountry, the Pee Dee, and the Sandhills. Major cities in the region are Myrtle Beach, Charleston, Beaufort, Hilton Head Island and Florence. Area code 843 was created in 1998 when area code 803 was split, while 854 was added in 2015 to form an all-services overlay.
| North: 229, 251, 334 | ||
| West: 251 | area code 850 | East: 352, 386 |
| South: Gulf of Mexico | ||
| Alabama area codes: 205/659, 251, 256/938, 334 | ||
| Georgia area codes: 229, 404, 478, 678/470/943, 706/762, 770, 912 | ||