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Area Code 360: Comprehensive Guide to Technical Details and Geographic Coverage

Info: Area code 360 is part of the North American Numbering Plan (NANP), covering western Washington state, excluding metropolitan Seattle and areas west of the Cascade Mountains.

Technical Specifications of Area Code 360

  • NPA Code: 360
  • Type: Overlay
  • Implementation Date: January 15, 1995
  • State: Washington

Geographic Coverage

Area code 360 encompasses western Washington state, excluding the Seattle metropolitan area and regions west of the Cascade Mountains. This includes the Olympic Peninsula and extends from the Strait of Juan de Fuca to the Oregon border.

Major Cities Served

  • Bellingham: 48.75955, -122.48822
  • Bremerton: 47.56732, -122.63264
  • Lacey: 47.03426, -122.82319
  • Longview: 46.13817, -122.93817
  • Marysville: 48.05176, -122.17708
  • Mount Vernon: 48.42122, -122.33405
  • Olympia: 47.03787, -122.9007
  • Vancouver: 45.63873, -122.66149

Numbering and Network Infrastructure

Numbering Statistics

  • Total Numbers Available: Data not provided
  • Utilization Rate: Data not provided
  • Exhaust Projection: 2018 (forecasted in 2016)

Major Carriers and Services

  • Carriers: Historically includes US West
  • Services: Landline, Wireless, VoIP

Regulatory Framework

  • Regulatory Body: Washington Utilities and Transportation Commission
  • Dialing Requirements: Ten-digit dialing required since July 29, 2017
  • NANPA Regulations: Area code 360 adheres to the North American Numbering Plan regulations for area code assignments and overlays.

Historical Milestones

  • 1947: Washington state assigned area code 206.
  • 1957: Area code 206 reduced to western Washington.
  • 1995: Area code 360 created from area code 206.
  • 2017: Area code 564 overlaid on area code 360.
  • 2021: Final 360 prefix assigned.

Conclusion

Area code 360 plays a crucial role in connecting western Washington state, excluding the Seattle metropolitan area. Since its establishment in 1995, it has seen significant changes, including the introduction of the overlay area code 564 in 2017. Managed by the Washington Utilities and Transportation Commission, area code 360 complies with NANPA regulations, requiring ten-digit dialing due to the overlay.

For more detailed insights, visit the official Wikipedia page on Area Code 360.