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Area Code 404: Comprehensive Technical Details and Geographic Coverage

Info: Area code 404 is a key telephone area code within the North American Numbering Plan (NANP), serving Atlanta, Georgia, and its immediate suburbs.

Technical Specifications of Area Code 404

  • NPA Code: 404
  • Type: Overlay
  • Implementation Date: 1947
  • State: Georgia

Geographic Coverage

Area code 404 encompasses Atlanta and its nearest suburbs, primarily within the loop of Interstate 285.

Major Cities Covered

  • Atlanta, Georgia (33.749, -84.38798)
  • Candler-McAfee, Georgia (33.72672, -84.27246)
  • College Park, Georgia (33.65344, -84.44937)
  • East Point, Georgia (33.67955, -84.43937)
  • Forest Park, Georgia (33.62205, -84.36909)
  • Sandy Springs, Georgia (33.92427, -84.37854)
  • Tucker, Georgia (33.85455, -84.21714)

Numbering and Utilization Statistics

  • Total Numbers Available: Approximately 7.92 million (792 central offices)
  • Utilization Rate: High, nearing exhaustion
  • Exhaust Projection: 2022 (with the introduction of NPA 943)

Network Infrastructure

Major Carriers

  • AT&T Inc. (formerly BellSouth)
  • Verizon
  • T-Mobile
  • Sprint

Types of Services

  • Landline
  • Wireless
  • VoIP

Regulatory Framework

  • Regulatory Body: Georgia Public Service Commission
  • Dialing Requirements: Ten-digit dialing mandatory
  • NANPA Regulations: Compliant with standard NANPA regulations and number pooling

Historical Milestones

  • 1947: Area code 404 established as one of the original NANP area codes.
  • 1954: Southern Georgia reassigned to area code 912.
  • 1992: Northern Georgia reassigned to area code 706.
  • 1995: Atlanta suburbs reassigned to area code 770.
  • 1998: Area code 678 introduced as an overlay.
  • 2001: Area code 470 added to the overlay.
  • 2022: Area code 943 added to the overlay.

Conclusion

Area code 404 is vital for telecommunications in Atlanta, Georgia, reflecting the region's growth and demand for phone numbers. The addition of new area codes ensures continued service for the expanding population and technological advancements.

For further details, visit the Georgia Public Service Commission and the North American Numbering Plan Administrator.