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Area Code 405: Oklahoma's Central Hub for Telecommunications
Area code 405 serves central Oklahoma, including Oklahoma City. Explore its geographic boundaries (35.46756, -97.51643), regulatory details under NANPA, and history since 1947. Understand the 572 overlay requiring 10-digit dialing and supported services like VoIP.
Area Code 405: Oklahoma's Central Hub for Telecommunications
Area Code 405 is a vital part of Oklahoma's telecommunications landscape, serving the central region of the state, including the capital, Oklahoma City. Established in 1947, it has undergone several changes to accommodate the growing demand for phone numbers. This article explores the key aspects of Area Code 405, including its geographic coverage, regulatory framework, and historical milestones.
Where is Area Code 405 Located?
Area Code 405 serves central Oklahoma, prominently covering Oklahoma City and its surrounding suburbs. This code is crucial for connecting residents and businesses in this vibrant region.
<Callout type="info"> **Quick Fact:** Area Code 405 was one of the original area codes introduced in 1947, reflecting its longstanding significance in Oklahoma's telecommunication history. </Callout>Geographic Coverage of Area Code 405
Area Code 405 encompasses a diverse range of cities in central Oklahoma. Here's a closer look at some of the major cities within this area code:
- Oklahoma City (35.46756, -97.51643)
- Norman (35.22257, -97.43948)
- Edmond (35.65283, -97.4781)
- Moore (35.33951, -97.4867)
- Midwest City (35.44951, -97.3967)
- Stillwater (36.11561, -97.05837)
- Yukon (35.50672, -97.76254)
Technical Specifications
- NPA Code: 405
- Type: Single (with overlay 572)
- Implementation Date: January 1, 1947
- State: Oklahoma
Regulatory Framework
Area Code 405 operates under the oversight of the Oklahoma Corporation Commission, ensuring compliance with the North American Numbering Plan Administration (NANPA) guidelines. Since January 2021, ten-digit dialing has been mandatory due to the overlay of Area Code 572.
Historical Milestones
- 1947: Introduction of Area Code 405, initially covering all of Oklahoma.
- 1953: Area Code 918 introduced, confining 405 to central and western regions.
- 1997: Further division with the creation of Area Code 580, focusing 405 on central Oklahoma.
- 2021: Overlay of Area Code 572, necessitating ten-digit dialing.
Network Infrastructure and Services
Area Code 405 supports a robust telecommunications infrastructure, offering a variety of services:
- Landline
- Wireless
- VoIP
Major Carriers: Several major carriers operate within Area Code 405, providing extensive coverage and service options for residents and businesses.
Conclusion
Area Code 405 remains a cornerstone of central Oklahoma's telecommunications, adapting over the decades to meet the needs of its growing population. From its inception to the recent overlay with Area Code 572, it continues to evolve, ensuring reliable communication for the region.
For more information, visit the North American Numbering Plan Administration (NANPA) and the official Wikipedia page on Area Code 405.
Explore More: For insights into other area codes in Oklahoma, check out our related articles on Area Codes 918 and 580.
Frequently Asked Questions
What cities are covered by area code 405 in Oklahoma?
Area code 405 covers central Oklahoma, including Oklahoma City, Norman, Edmond, Moore, Midwest City, Stillwater, and Yukon.
When was area code 405 established in Oklahoma?
Area code 405 was established in 1947 as one of the original area codes in the state.
Why was area code 572 added to the 405 region?
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.
What is the regulatory body that oversees area code 405?
The Oklahoma Corporation Commission oversees area code 405, ensuring compliance with NANPA guidelines.
What area codes were created as a result of splitting the original 405 area code?
Area codes 918 (1953) and 580 (1997) were created to accommodate growth and split the original 405 coverage area.
What types of phone services are available in the 405 area code?
Area code 405 supports landline, wireless, and VoIP phone services.
What are the coordinates of Oklahoma City within area code 405?
Oklahoma City, located within area code 405, is at approximately 35.46756 latitude and -97.51643 longitude.
What is the NPA code for central Oklahoma?
The NPA (Numbering Plan Area) code for central Oklahoma is 405.
Is ten-digit dialing required for calls within area code 405?
Yes, ten-digit dialing (including area code) is mandatory for all calls within area code 405 due to the 572 overlay.
What resources can I consult for more information on area code 405?
You can find more information on the North American Numbering Plan Administration (NANPA) website and the official Wikipedia page for area code 405.
Where can I find information on area codes 918 and 580 in Oklahoma?
The article suggests checking out related resources for information specifically on area codes 918 and 580 in Oklahoma.
What area does area code 405 cover 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.
When was area code 405 established?
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.
Why does Oklahoma City use area code 405?
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.
How to dial a 405 number now?
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.
What is the area code 405 NPA code?
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.
What other area codes are used in Oklahoma besides 405?
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.
What is the regulatory body for area code 405?
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.
What types of phone services use area code 405?
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.
When should I use 10-digit dialing for area code 405?
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.
What cities are included in area code 405 Oklahoma?
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.
How to find more information about area code 405 history?
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.