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 850 and 448 are telephone area codes in the North American Numbering Plan for the Florida Panhandle, including Pensacola, Tallahassee and Panama City. 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.
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 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.
The Orlando metropolitan area, commonly referred to as Greater Orlando, Metro Orlando, Central Florida as well as for U.S. Census purposes as the Orlando–Kissimmee–Sanford, Florida Metropolitan Statistical Area, is a metropolitan area in the central region of the U.S. state of Florida. Its principal cities are Orlando, Kissimmee and Sanford. The U.S. Office of Management and Budget defines it as consisting of the counties of Lake, Orange, Osceola, and Seminole.
Area code 321 is the area code serving Brevard County, Florida, Space Coast Region and Seminole County, Florida. The area code has been in use since November 1, 1999; it was assigned to Florida after a successful petition led by local resident Robert Osband to commemorate the Space Coast's impact on Brevard County. The code refers to the countdown sequence which has launched many spacecraft from Cape Canaveral.
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 code 239 is a telephone area code in the North American Numbering Plan (NANP) for a part of Southwestern Florida. The numbering plan area includes Lee and Collier counties, small parts of Hendry and Charlotte counties and the Everglades National Park in Mainland Monroe County. The area code was created on March 11, 2002, in an area code split in which the southern half of area code 941, from North Fort Myers, was renumbered with 239. A permissive dialing period ended on March 10, 2003.
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 code 403 is a telephone area code in the North American Numbering Plan (NANP) for the Canadian province of Alberta. The numbering plan area encompasses the southern third of the province, which includes the Calgary area. This numbering plan area is also served by area codes 587, 825, and 368, which form a complex overlay for all of Alberta.
Area codes 304 and 681 are telephone area codes in the North American Numbering Plan (NANP) for the entirety of the U.S. state of West Virginia. The numbering plan area was established in October 1947 with area code 304, as one of the eighty-six original North American area codes. Area code 681 was added to the same area in an overlay plan that took effect on March 28, 2009.
Area code 904 is a telephone area code in the North American Numbering Plan for most of the First Coast (northeast) region of the U.S. state of Florida. The numbering plan ara 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 904 in 1965. In 2024, the numbering plan area is scheduled for conversion to an overlay complex with a second area code, 324, to mitigate central office code exhaustion and provide additional telephone numbers in the area.
Area code 772 is a telephone area code in the North American Numbering Plan (NANP) for the Treasure Coast of the U.S. state of Florida. The numbering plan area (NPA) includes Sebastian, Fellsmere, Vero Beach, Fort Pierce, Port St. Lucie, Jensen Beach, Stuart, Hobe Sound, Indiantown, and other areas in east central Florida. The area code was created in 2002 in a split from area code 561, when the telephone number pool exhausted due in part to the increase of cell phone users.
Area code 216 is the telephone area code in the North American Numbering Plan (NANP) for the city of Cleveland and most of its inner-ring suburbs in Cuyahoga County of the U.S. state of Ohio. The area code is one of the original North American area codes established in 1947.
Area code 912 is a telephone area code in the North American Numbering Plan (NANP) for the southeastern part of the U.S. state of Georgia. The numbering plan area contains Savannah, Richmond Hill, Hinesville, Vidalia, Metter, Reidsville, Homerville, Waycross, Brunswick, Folkston, Douglas, Statesboro, Ludowici, Jesup and Kingsland. The area code was created in 1954 in an area code split from area code 404, which had been assigned to the entire state in 1947.
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 code 828 is a telephone area code in the North American Numbering Plan (NANP) for most of the western third of the U.S. state of North Carolina. The numbering plan area (NPA) comprises the Blue Ridge Mountains and most of the Foothills. The largest city is Asheville.
