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Area Code 520
Area code 520 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Arizona. The numbering plan area comprises Tucson and most of the southeastern part of the state. Area code 520 was created in a split of area code 602 on March 19, 1995. Previously, 602 had been the sole area code for the entire state of Arizona since the introduction of area codes in 1947. Arizona's rapid growth in demand for telecommunication services during the second half of the 20th century, and the proliferation of mobile and data communication services in the 1990s required additional numbering resources. The numbering plan area originally comprised all of the state outside the Phoenix metropolitan area, but areas outside of southeastern Arizona were split again in 2001 to form area code 928 in 2001. History Area code 602 was the only area code for Arizona from the establishment of a nationwide telephone numbering plan in 1947. By the late 1980s, the state needed a sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Area Code
A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined world-wide, as well as within each of the administrative regions of the public switched telephone network (PSTN), and in private telephone networks. In public numbering systems, geographic location typically plays a role in the sequence of numbers assigned to each telephone subscriber. Many numbering plan administrators subdivide their territory of service into geographic regions designated by a prefix, often called an area code or city code, which is a set of digits forming the most-significant part of the dialing sequence to reach a telephone subscriber. Within such regions designated by area codes, locally unique telephone number are assigned based on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Arizona Corporation Commission
The Arizona Corporation Commission is the Public Utilities Commission of the Arizona, State of Arizona, established by Article 15 of the Constitution of Arizona, Arizona Constitution. Arizona is one of only fourteen states with elected commissioners. The Arizona Constitution explicitly calls for an elected commission, as opposed to a governor-appointed commission, which is the standard in most states, because its drafters feared that governors would appoint industry-friendly officials. They are directly elected statewide and serve staggered four-year terms. Due to its separation from the executive branch, the commission is often referred to as the "fourth branch of government." The characterization of the Commission as the "fourth branch of government" is contradicted, however, by Article III of the Arizona Constitution, which provides that "[t]he powers of the government of the state of Arizona shall be divided into three separate departments, the legislative, the executive, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Arivaca, Arizona
Arivaca ( O'odham: Ali Wa:pk) is an unincorporated community in Pima County, Arizona, United States.Arivaca , Arizona Department of Commerce, August 10, 2007. Accessed 2007-09-07. It is located north of the Mexican border and northwest of the port of entry at Nogales. The European-American history of the area dates back at least to 1695, although the community was not founded until 1878. Arivaca has the ZIP code 85601. The 85601 |
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Amado, Arizona
Amado is a census-designated place (CDP) in Pima County, Arizona, Pima County, Arizona, United States. The population was 295 at the 2010 United States Census, 2010 census. The Population decreased to 198 as of the 2020 United States census, 2020 census Geography Amado is located at (31.704900, -111.065492). According to the United States Census Bureau, the CDP has a total area of , of which is land and , or 0.33%, is water. Demographics Amado's population was 40 in the 1960 census. Amado appeared on the 2000 U.S. Census as a census-designated place (CDP). As of the census of 2000, there were 275 people, 104 households, and 66 families residing in the CDP. The population density was . There were 107 housing units at an average density of . The racial makeup of the CDP was 70.9% Race (United States Census), White, 0.4% Race (United States Census), Black or Race (United States Census), African American, 1.1% Race (United States Census), Native American, 0.7% Race (United S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Ajo, Arizona
Ajo ( ) is an Unincorporated area#United States, unincorporated community in Pima County, Arizona, United States. It is the closest community to Organ Pipe Cactus National Monument. The population was 3,039 at the 2020 United States census, 2020 census. Ajo is located on Arizona State Route 85, State Route 85 just from the U.S.-Mexico border, Mexican border. History ''Ajo'' is the Spanish word for garlic (). The Spanish may have named the place using the familiar word in place of the similar-sounding O'odham language, O'odham word for paint (''oʼoho''). The Tohono O'odham people obtained red paint pigments from the area. Native Americans in the United States, Native Americans, Spaniards, and Americans have all extracted mineral wealth from Ajo's abundant ore deposits. In the early nineteenth century, there was a Spanish Mining, mine nicknamed "Old Bat Hole" that was abandoned due to Indian raids. Tom Childs, Tom Childs Sr., found the deserted mine complete with a shaft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Ten-digit Dialing
Ten-digit dialing is a telephone dialing procedure in the countries and territories of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when Dialling (telephony), 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''. History The implementation and expansion of the North American Numbering Plan between 1947 and 1992 preserved a long-standing practice in the United States and Canada that callers should only need to dial the local seven-digit telephone number when placing a call within the caller's exchange area or within the home numbering plan area (NPA). In seven-digit dialing, callers dial the three-digit central office code and the four-digit station number of the destination telephone if it resides in the same numbering plan area. Dialing of an area code before the telephone number, ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Seven-digit Dialing
Seven-digit dialing is a telephone dialing procedure customary in some territories of the North American Numbering Plan (NANP) for dialing telephone numbers in the same numbering plan area (NPA). NANP telephone numbers consist of ten digits, of which the leading three are the area code. In seven-digit dialing it is not necessary to dial the area code. The procedure is also sometimes known as ''local format'' or ''network format''. History Originally, telephone exchanges consisted of manual switchboards operated by switchboard operators. Telephone numbers had typically two to four digits, depending on the size of the community. As the number of subscribers grew, multiple exchanges served individual neighborhoods of large cities. Multiple exchanges were identified by a central office name and typically four digits, such as "Pennsylvania 5000". A rural telephone number, often party line, had often up to four digits and a letter or letter and digits to indicate which of the multiple p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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National Suicide Prevention Lifeline
The Suicide and Crisis Lifeline in the United States, or Suicide Crisis Helpline in Canada, and formerly known as the National Suicide Prevention Lifeline, is a suicide prevention and crisis help line to a network of a large number of crisis centers in the United States and Canada that provide 24/7 service via a toll-free hotline and with the three-digit short code telephone number 9-8-8. In the United States, the 988 short code was implemented in July 2022 as an addition to its predecessor, a 1-800 number that existed since 2005. Call to the hotline are routed to the nearest crisis center that provides immediate counseling and a referral to a local mental health service. The service supports people who call for their own crisis or for someone they care about. A similar operation in Canada was launched on November 30, 2023. United States The 988 Suicide & Crisis Lifeline is a component of the National Suicide Prevention Initiative (NSPI), a multi-project effort to reduce s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Central Office Code
The North American Numbering Plan (NANP) is an integrated telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Numbering Zone 1 and has the country code ''1''. Some North American countries, most notably Mexico, do not participate in the NANP. The concepts of the NANP were devised originally during the 1940s by the American Telephone and Telegraph Company (AT&T) for the Bell System and the independent telephone companies in North America in Operator Toll Dialing. The first task was to unify the diverse local telephone numbering plans that had been established during the preceding decades, with the goal to speed call completion times and decrease the costs for long-distance calling, by reducing manual labor by switchboard operators. Eventually, it prepared the continent for direct-dialing of long-distance calls by customers, first possible in 1951, which expanded across the na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Maricopa County, Arizona
Maricopa County () is a County (United States), county in the south-central part of the U.S. state of Arizona. As of the 2020 United States census, 2020 census the population was 4,420,568, or about 62% of the state's total, making it the List of the most populous counties in the United States, fourth-most populous county in the United States and the List of counties in Arizona, most populous county in Arizona, and making Arizona one of the nation's most centralized states. The county seat is Phoenix, Arizona, Phoenix, the state capital and List of United States cities by population, fifth-most populous city in the United States. Maricopa County is the central county of the Phoenix metropolitan area, Phoenix–Mesa–Chandler Metropolitan Statistical Area. The Office of Management and Budget renamed the metropolitan area in September 2018. Previously, it was the Phoenix–Mesa–Glendale metropolitan area, and in 2000, that was changed to Phoenix–Mesa–Scottsdale. Maricopa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Gila River Indian Community
The Gila River Indian Community (GRIC) ( O'odham language: Keli Akimel Oʼotham, meaning "Gila River People", Maricopa language: Piipash) is an Indian reservation in the U.S. state of Arizona, lying adjacent to the south side of the cities of Chandler and Phoenix, within the Phoenix Metropolitan Area in Pinal and Maricopa counties. The Gila River Indian Community was established in 1859, and the Gila River Indian Community was formally established by Congress in 1939. The community is home for members of both the Akimel O’odham (Pima) and the Piipaash (Maricopa) tribes. The reservation has a land area of and a 2020 Census population of 14,260. It is made up of seven districts along the Gila River and its largest communities are Sacaton, Komatke, Santan, and Blackwater. Tribal administrative offices and departments are located in Sacaton. The Community operates its own telecom company, electric utility, industrial park and healthcare clinic, and publishes a monthly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Santa Cruz County, Arizona
Santa Cruz is a County (United States), county in southern Arizona, United States. As of the 2020 United States census, 2020 census, the population is 47,669. The county seat is Nogales, Arizona, Nogales. The county was established in 1899. It borders Pima County, Arizona, Pima County to the north and west, Cochise County, Arizona, Cochise County to the east, and the Mexican state of Sonora to the south. Santa Cruz County includes the Nogales, Arizona Micropolitan Statistical Area, which is also included in the Tucson, Arizona, Tucson-Nogales, Arizona Combined Statistical Area. History Santa Cruz County, formed on March 15, 1899, out of what was then Pima County, Arizona, Pima County, is named after the Santa Cruz River (Arizona), Santa Cruz River. The river originates in the Canelo Hills in the eastern portion of the county, crosses south into Mexico near the community of Santa Cruz, Sonora, and then bends northwards returning into the United States (and Santa Cruz County) e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |