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Area code 510 is shown in red. Area codes 510 and 341 are telephone area codes in the North American Numbering Plan (NANP) serving much of the East Bay in the U.S. state of California. They cover parts of Contra Costa County and western Alameda County, including the city of Oakland, but excluding Dublin, Livermore, Pleasanton, and Sunol .
277566, 2411292. Website. www .oaklandca .gov. [ 15][ 16][ 17] Oakland is a city in the San Francisco Bay Area in the U.S. state of California. It is the county seat and most populous city in Alameda County, with a population of 440,646 in 2020. [ 13] A major West Coast port, Oakland is the most populous city in the East Bay region, the third ...
East Oakland is a geographical region of Oakland, California, United States, that stretches between Lake Merritt in the northwest and San Leandro in the southeast. As the southeastern portion of the city, East Oakland takes up the largest portion of the city's land area. The area is a major hub of Northern California's black community, with ...
This is a list of telephone area codes in the U.S. state of Michigan : 231 – Northwestern Lower Michigan: Traverse City, Ludington, Muskegon, Petoskey, Big Rapids and Cheboygan. 248 – Northern Metro Detroit: All of Oakland County, Northville, and most of Northville Township; overlays with area code 947. 269 – Southwestern Michigan: Battle ...
Website. www .oakgov .com. Oakland County is a county in the U.S. state of Michigan. It is a principal county of the Detroit metropolitan area, containing the bulk of Detroit's northern suburbs. Its seat of government is Pontiac, [ a] and its largest city is Troy. [ 4]
Area code 810. Coordinates: 43.0°N 83.0°W. Map of Michigan, having numbering plan area 810 highlighted in green. Area code 810 is a telephone area code in the North American Numbering Plan for the east-central part in the U.S. state of Michigan. The numbering plan area (NPA) comprises the cities of Flint, Lapeer, Port Huron, and the southern ...
The original North American area codes were established by the American Telephone and Telegraph Company (AT&T) in 1947, after the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speeding the connecting times for long-distance calling by eliminating intermediary telephone operators.
As of July 2023, California has 38 active area codes. Area code. Service area. Notes. 209. Stockton, Modesto, Merced, Turlock; the northern San Joaquin Valley and the central Sierra Nevada range. Split from 415 on October 26, 1957; split off 559 on November 14, 1998; overlaid with 350 on November 28, 2022. 213.