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.

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.

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Explore More: For insights into other area codes in Oklahoma, check out our related articles on Area Codes 918 and 580.