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Area codes 202 and 771. Coordinates: 38°54′N 77°2′W. The red area is the District of Columbia, served by area codes 202 and 771. Area codes 202 and 771 are telephone area codes in the North American Numbering Plan (NANP) for Washington, D.C. Area code 202 was one of the original North American area codes established in October 1947 by AT&T.
A 1974 postage stamp encouraging people to use the ZIP Code on letters and parcels. A ZIP Code (an acronym for Zone Improvement Plan[ 1]) is a system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly [ 2] ( zipping along) when senders use the ...
Coordinates: 38.6°N 121.5°W. Numbering plan areas in California (blue) and border states. Area code 916 is shown in red. Area codes 916 and 279 are California telephone area codes that serve Sacramento, the state capital, and most of its suburbs. Area code 916 was one of the first three original area codes established in California in October ...
The original area code, 704, was one of the original 86 numbering plan areas (NPAs) designated by AT&T in 1947, and originally covered the entire state of North Carolina. . In 1954, the eastern two-thirds of the state–everything from Winston-Salem eastward–was split off as area code 919. 704 was reduced to the western third of the state, from Charlotte through the Blue Ridge Mountains to ...
The numbering plan area comprises Denver and Boulder, as well as their surrounding suburbs, including Lakewood, Littleton, Longmont, Broomfield, Aurora, and Castle Rock. Area code 303 is the original area code, while area codes 720 and 983 were added (in 1998 and 2022 respectively) to form an overlay complex for the area, meaning that the same ...
Area code 707 is shown in red. 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 ...
The SCF for the Davenport, Iowa area (527 and 528) is located in Rock Island, Illinois. [1] Five independent branches of Chicago were originally under the 606 prefix: Riverdale, Elmwood Park, Niles, Cicero, and Alsip. Before getting its own prefix with just one code, Yellowstone National Park was under the 830 range, with ZIP Code 83020.
Area codes 813 and 656. 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.