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Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
The state of Oklahoma is served by the following area codes: 405/572: Central Oklahoma including Oklahoma City (original area code created in 1947; 572 added as overlay on April 24, 2021 [1] [2] [3] 580: Western and southern Oklahoma (split from 405 in 1997) 539/918: Northeastern Oklahoma including Tulsa (918 created in 1953 as split from 405 ...
Area code 405 was one of the original area codes put into service in 1947 by telecom giant AT&T. Until January 1, 1953, it covered the entire state of Oklahoma. On that date, northeastern Oklahoma was assigned area code 918. Even though central Oklahoma was home to the great majority of 405's landlines and cell phones, this configuration ...
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Mobile phones use geographic area codes (two digits): after that, all numbers assigned to mobile service have nine digits, starting with 6, 7, 8 or 9 (example: 55 15 99999–9999). 90 is not possible, because collect calls start with this number.
Oklahoma Law Enforcement Telecommunications System Division - The Oklahoma Law Enforcement Telecommunications System (OLETS) is a statewide telecommunications network which serves city, county, state, federal, and military law enforcement and criminal justice agencies in Oklahoma. 800 megahertz is the DPS portion of OKWIN (800 MHz trunking ...
This is a list of law enforcement agencies in the state of Oklahoma.. According to the US Bureau of Justice Statistics' 2008 Census of State and Local Law Enforcement Agencies, the state had 483 law enforcement agencies employing 8,639 sworn police officers, about 237 for each 100,000 residents.
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