Area code 405 covers central Oklahoma, including Oklahoma City, Norman, Edmond, Moore, Midwest City, Stillwater, and Yukon.

Area code 405 was established in 1947 as one of the original area codes in the state.

Area code 572 was added as an overlay to 405 in 2021 to accommodate the increasing demand for phone numbers, requiring mandatory ten-digit dialing.

The Oklahoma Corporation Commission oversees area code 405, ensuring compliance with NANPA guidelines.

Area codes 918 (1953) and 580 (1997) were created to accommodate growth and split the original 405 coverage area.

Area code 405 supports landline, wireless, and VoIP phone services.

Oklahoma City, located within area code 405, is at approximately 35.46756 latitude and -97.51643 longitude.

The NPA (Numbering Plan Area) code for central Oklahoma is 405.

Yes, ten-digit dialing (including area code) is mandatory for all calls within area code 405 due to the 572 overlay.

You can find more information on the North American Numbering Plan Administration (NANPA) website and the official Wikipedia page for area code 405.

The article suggests checking out related resources for information specifically on area codes 918 and 580 in Oklahoma.

Area code 405 covers the central region of Oklahoma, including Oklahoma City and its surrounding suburbs. It's a vital part of the state's telecommunications network, connecting residents and businesses.

Area code 405 was established in 1947 as one of the original area codes in the North American Numbering Plan. It originally covered the entire state of Oklahoma before being reduced to central and western regions in 1953, and further refined to central Oklahoma in 1997 and overlaid by 572 in 2021.

Oklahoma City uses area code 405 because it's located within the central region of Oklahoma, the designated area for this specific code. This code has served the city since 1947, though now overlaid by 572.

Since January 2021, ten-digit dialing (including the area code) has been mandatory for all calls within area code 405 due to the implementation of the 572 overlay. This change was implemented to meet the increasing demand for phone numbers within central Oklahoma and the NANPA guidelines mandate it.

The NPA (Numbering Plan Area) code for area code 405 is simply 405. This three-digit code is used to identify and route calls within the North American Numbering Plan.

Besides area code 405, Oklahoma also uses area codes 918 and 580. Area code 918 covers the northeastern part of the state, while 580 serves the northwestern region. These were introduced to accommodate growth and split the original coverage of 405 over time. The 572 area code now overlays the 405 central region.

The Oklahoma Corporation Commission oversees area code 405, ensuring compliance with the guidelines set by the North American Numbering Plan Administration (NANPA). This commission regulates telecommunications within the state and manages area code usage and rules.

Area code 405 supports various phone services, including traditional landlines, wireless mobile phones, and Voice over Internet Protocol (VoIP). Multiple major carriers operate within this area code providing a wide array of communication services.

You should always use 10-digit dialing (including the area code) when making any call to or from a number within area code 405 and its overlay 572. This practice has been mandatory since January 2021.

Area code 405 includes major cities like Oklahoma City, Norman, Edmond, Moore, Midwest City, Stillwater, and Yukon, all located in central Oklahoma. This area code serves a significant portion of Oklahoma's population and business centers.

For further details on the history and development of area code 405, you can refer to resources like the North American Numbering Plan Administration (NANPA) website and the official Wikipedia page dedicated to area code 405, linked within the main article content.