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Numbering plan areas in California (blue) and border states. This map is clickable; click on any region shown to visit the page for those area codes. In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes.
San Francisco Bay Area. The San Francisco Bay Area, commonly known as the Bay Area, is a metropolitan region surrounding the San Francisco Bay estuaries in Northern California. According to the 2010 United States Census, the region has over 7.1 million inhabitants and approximately 6,900 square miles (18,000 km 2) of land. [1]
California Bay Area county map. The San Francisco Bay Area (referred to locally as the Bay Area) is a populous region surrounding the San Francisco and San Pablo estuaries in Northern California. The region encompasses the major cities and metropolitan areas of San Jose, San Francisco, and Oakland, along with smaller urban and rural areas.
For 43 years, the 13 counties around Tampa Bay, including cities such as Sarasota, Ellenton, and Port Charlotte were in area code 813. In 1998, Pinellas County and the western part of Pasco County were split into area code 727. 727 was going to be introduced in an overlay plan, to overlay 813. At the time, overlays were a new concept and since ...
Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.
California Bay Area county map. The San Francisco Bay Area (referred to locally as the Bay Area) is a populous region surrounding the San Francisco and San Pablo estuaries in Northern California. The region encompasses the major cities and metropolitan areas of San Jose, San Francisco, and Oakland, along with
Orange County Area. Santa Ana-Anaheim-Irvine, CA. Santa Ana; South Coast Metro; Santa Ana Valley; Saddleback Valley; Santa Ana Mountains; San Diego–Tijuana. San Diego metropolitan area. North County. North County Coastal; North County Inland; Temecula Valley; East County. Mountain Empire; South Bay
Date: 8 April 2016: Source: color scheme: File:Bayarea map.svg vector source: File:California Bay Area county map.svg this combination: Own work Author: color scheme: PerryPlanet at English Wikivoyage