What areas does Area Code 313 cover?

Area Code 313 covers Detroit and several neighboring suburbs in Wayne County, Michigan, including Allen Park, Dearborn, Dearborn Heights, Hamtramck, Inkster, Lincoln Park, Redford, and Taylor.

When was Area Code 313 established?

Area Code 313 was established in October 1947 as one of the original area codes in the North American Numbering Plan.

What is the projected exhaust date for Area Code 313?

The projected exhaust date for Area Code 313 is 2025.

What percentage of Area Code 313 numbers are utilized?

Approximately 70% of the numbers in Area Code 313 are utilized.

Which telecom carriers dominate Area Code 313?

The leading telecom carriers for Area Code 313 are AT&T (40%), Verizon (30%), T-Mobile (20%), and Sprint (10%).

What types of services are available in Area Code 313?

Area Code 313 offers landline, wireless, and VoIP services.

What is the North American Numbering Plan (NANP)?

The North American Numbering Plan (NANP) is a telephone numbering plan that encompasses 25 regions in 20 countries, primarily in North America, including the United States, Canada, and several Caribbean nations.

What is the significance of Area Code 313 to Detroit?

Area Code 313 is an iconic symbol of Detroit's identity, representing its rich history and serving as a crucial element of the region's telecommunications infrastructure.

Has Area Code 313 ever been split?

Yes, Area Code 313 has been split twice. In December 1993, the northern portion split to form Area Code 810, and in December 1997, the western portion split to form Area Code 734.

Is there an overlay area code for 313?

Area Code 679 was reserved as a future overlay for 313 in February 2000, but its implementation was suspended in April 2000.

What is the NPA code for Area Code 313?

The NPA code for Area Code 313 is 313 itself.

What dialing method is required for local calls in Area Code 313?

Local calls within Area Code 313 require 10-digit dialing.

What is the latitude and longitude of Detroit, MI?

The latitude and longitude of Detroit, MI, are 42.33143 and -83.04575, respectively.

How many total numbers are available in Area Code 313?

Approximately 7.8 million numbers are available in Area Code 313.

What is the type of Area Code 313?

Area Code 313 is a single type area code.

What is the purpose of the North American Numbering Plan Administration (NANPA)?

NANPA administers the allocation of telephone numbers and area codes in the North American Numbering Plan, ensuring efficient use of numbering resources.

Why was the implementation of Area Code 679 suspended?

The implementation of Area Code 679 was suspended due to changes in demand projections and numbering resource management strategies.

What are some historical milestones of Area Code 313?

Some historical milestones include its establishment in 1947, splits in 1993 and 1997 to form area codes 810 and 734, and the reservation of area code 679 as a future overlay.

Where can I find more information about Area Code 313?

More detailed information about Area Code 313 can be found on the official website of the North American Numbering Plan Administration (NANPA) at https://www.nationalnanpa.com/.

Area Code 313: Everything You Need to Know About Detroit's Iconic Code

Area Code 313 is synonymous with Detroit, Michigan, serving as a vital part of the region's telecommunications infrastructure. This guide will address common questions about Area Code 313, including its geographic coverage, the cities it serves, and its regulatory framework.

What is Area Code 313?

Area Code 313 is a telephone area code in the North American Numbering Plan (NANP) that serves Detroit and its surrounding areas in Wayne County, Michigan. Established in October 1947, it is one of the original area codes and remains a significant identifier for the city.

Geographic Coverage of Area Code 313

Area Code 313 covers the city of Detroit and several neighboring suburbs. Here are some of the major cities within this area code:

City	Latitude	Longitude
Allen Park, MI	42.25754	-83.21104
Dearborn, MI	42.32226	-83.17631
Dearborn Heights, MI	42.33698	-83.27326
Detroit, MI	42.33143	-83.04575
Hamtramck, MI	42.39282	-83.04964
Inkster, MI	42.2942	-83.30993
Lincoln Park, MI	42.25059	-83.17854
Redford, MI	42.38337	-83.2966
Taylor, MI	42.24087	-83.26965

Technical Specifications

NPA Code: 313
Type: Single
Implementation Date: October 1947
State: Michigan

Numbering Statistics

Total Numbers Available: Approximately 7.8 million
Utilization Rate: 70%
Projected Exhaust Date: 2025

Telecom Carriers and Services

Leading Carriers

AT&T: 40%
Verizon: 30%
T-Mobile: 20%
Sprint: 10%

Service Types

Landline
Wireless
VoIP

Regulatory Framework

Area Code 313 is regulated by the North American Numbering Plan Administration (NANPA). It adheres to regulations concerning number allocation and exhaust planning. Local calls require 10-digit dialing.

Historical Milestones

October 1947: Area Code 313 was among the original 86 area codes assigned.
December 1, 1993: Northern portion split to form Area Code 810.
December 13, 1997: Western portion split to form Area Code 734.
February 2000: Area Code 679 reserved as a future overlay for 313.
April 2000: Implementation of overlay 679 was suspended.

Conclusion

Area Code 313 is not just a number; it's a symbol of Detroit's rich history and dynamic future. As the city continues to grow, Area Code 313 plays a crucial role in ensuring seamless communication. For more detailed information, visit the NANPA official website.

For further reading, explore related articles on telecommunications infrastructure and area code history to deepen your understanding of how these systems support modern communication.

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