What is Area Code 405?

Area Code 405 is a telephone area code in central Oklahoma, serving cities such as Oklahoma City, Norman, Edmond, and others.

When was Area Code 405 established?

Area Code 405 was established on January 1, 1947.

Which cities are covered by Area Code 405?

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

What is the significance of Area Code 405 in Oklahoma?

Area Code 405 is significant because it serves central Oklahoma, including the state capital, Oklahoma City, and has been instrumental in the state's telecommunications since 1947.

Is Area Code 405 still in use?

Yes, Area Code 405 is still in use, serving central Oklahoma and operating alongside the overlay code 572.

What is the overlay area code for 405?

The overlay area code for 405 is 572.

Why was ten-digit dialing introduced for Area Code 405?

Ten-digit dialing was introduced for Area Code 405 due to the overlay of Area Code 572, which requires the use of both the area code and the local number for dialing.

Who regulates Area Code 405?

Area Code 405 is regulated by the Oklahoma Corporation Commission in compliance with the North American Numbering Plan Administration (NANPA) guidelines.

What changes have occurred to Area Code 405 over the years?

Area Code 405 has undergone several changes, including the introduction of Area Code 918 in 1953, which confined it to central and western Oklahoma, and the creation of Area Code 580 in 1997, which further focused it on central Oklahoma. In 2021, Area Code 572 was overlaid, necessitating ten-digit dialing.

What types of telecommunication services are available in Area Code 405?

Area Code 405 supports a variety of telecommunication services, including landline, wireless, and VoIP.

What are some major carriers operating in Area Code 405?

Several major carriers operate within Area Code 405, though the specific names are not listed in the article.

How has Area Code 405 adapted to population growth?

Area Code 405 has adapted to population growth by undergoing changes such as the introduction of overlay codes and the implementation of ten-digit dialing to accommodate more phone numbers.

What is the geographic location of Area Code 405?

Area Code 405 is located in central Oklahoma, covering major cities like Oklahoma City, Norman, and Edmond.

How does Area Code 405 relate to the North American Numbering Plan?

Area Code 405 is part of the North American Numbering Plan, which standardizes phone numbers across North America, and is regulated under its guidelines.

What historical milestones are associated with Area Code 405?

Historical milestones for Area Code 405 include its introduction in 1947, the creation of Area Code 918 in 1953, the division with Area Code 580 in 1997, and the overlay with Area Code 572 in 2021.

How does the overlay of Area Code 572 affect dialing in Area Code 405?

The overlay of Area Code 572 requires that all calls within the 405 area use ten-digit dialing, which includes the area code and the local number.

What is the role of the Oklahoma Corporation Commission in relation to Area Code 405?

The Oklahoma Corporation Commission oversees the operation of Area Code 405, ensuring compliance with telecommunications regulations and guidelines.

Can you provide a brief history of Area Code 405?

Area Code 405 was introduced in 1947, initially covering all of Oklahoma. It was confined to central and western regions in 1953 with the introduction of Area Code 918, further refined in 1997 with Area Code 580, and had Area Code 572 overlaid in 2021.

What is the current dialing procedure for Area Code 405?

The current dialing procedure for Area Code 405 requires ten-digit dialing due to the overlay with Area Code 572.

Understanding Area Code 405: Oklahoma's Central Telecommunications Network

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.

Quick Fact: Area Code 405 was one of the original area codes introduced in 1947, reflecting its longstanding significance in Oklahoma's telecommunication history.

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.

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