Area Code 360

Washington

Area code 360 serves Washington, primarily Vancouver, in the Pacific Time (PT) time zone. It has served the region since 15-Jan-1995.

Published: Updated:

Overlay Area Code

This area code is part of an overlay region, meaning the same geographic area is served by multiple area codes. Overlay codes were introduced to meet growing demand for phone numbers without requiring existing customers to change their numbers.

This area code shares its geographic region with: area code 564 (Seattle).

In service since: 15-Jan-1995

Learn more about overlay and split area codes →

Demographics & Economics

Total Population
2,776,096
Population Density
93 people/sq mi
near U.S. average (U.S.: 93 people/sq mi)
Median Household Income
$93,985
above U.S. median (U.S.: $75,144)
Poverty Rate
10.3%
below U.S. average (U.S.: 11.5%)
Unemployment Rate
5.2%
above U.S. average (U.S.: 3.6%)
Education Attainment
Bachelor's Degree+
32.4%
near U.S. average (U.S.: 33.7%)
High School or Lower
27.0%

Statistics are population-weighted aggregations from Census ACS 5-year estimates. Population figures are approximate — see Sources & Methodology for details on how area code populations are derived.

See how this area code compares to all US area codes in the Statistics dashboard.

Time Zone

  • Pacific Time (PT)

NANPA Relief Status

According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.

Source: NANPA NPA Relief Planning Reports · See all relief planning statuses

Current Time

Pacific Time (PT)
 
 

Prefix Utilization

Geographic Coverage

State

WA

Major Cities

  • Vancouver
  • Everett
  • Bellingham
  • Marysville
  • South Hill
  • Lacey
  • Olympia
  • Bremerton
  • Longview
  • Mount Vernon
  • Graham
  • Orchards
  • Camas
  • Tumwater
  • Oak Harbor
  • Hazel Dell
  • Silver Firs
  • Five Corners
  • Battle Ground
  • Silverdale
  • Arlington
  • Port Angeles
  • Monroe
  • Salmon Creek

and 256 more cities

Area Code 360 geographic coverage map (light mode)

Historical Timeline of Area Code 360

Area code 360 was created on January 15, 1995, as a split from area code 206. It was one of the first two interchangeable NPA codes in the North American Numbering Plan, alongside Alabama's 334, which entered service approximately one minute before 360. The split addressed rapid telephone number growth in western Washington. (Source: Wikipedia)

Key milestones:

  • 1947: Area code 206 assigned as one of the original 86 North American area codes, covering the entire state of Washington. (Source: Wikipedia)
  • 1957: Area code 509 created when 206 split, assigning eastern Washington its own code. (Source: Wikipedia)
  • 1993: NANPA assigned 360 as an interchangeable NPA code (middle digit not 0 or 1), one of the first two alongside Alabama's 334. (Source: WUTC)
  • January 15, 1995: 360 activated at 12:01 AM PST. Permissive dialing ran January 15 through July 9, 1995, then extended to August 20, 1995. (Source: WUTC)
  • 1995: The 360 NPA became geographically non-contiguous after Seattle exurb residents protested their transfer from 206, prompting US West to restore some central offices to the original code. (Source: Wikipedia)
  • April 27, 1997: Area code 253 (Tacoma/Pierce County) and area code 425 (Everett/Eastside) split from 206. (Source: Wikipedia)
  • October 1999: WUTC approved 564 overlay for 360 (Docket UT-991535). Overlay was scheduled for August 2000 but delayed repeatedly. (Source: WUTC)
  • August 28, 2001: WUTC suspended 564 overlay implementation due to improved number conservation and number pooling. 564 was reserved for future use. (Source: WUTC)
  • May 19, 2016: WUTC re-approved 564 overlay (Docket UT-143787), with mandatory 10-digit dialing in all western Washington NPAs by September 30, 2017. (Source: WUTC)
  • August 28, 2017: Area code 564 overlay activated. Mandatory 10-digit dialing began July 29, 2017. (Source: WUTC)
  • October 22, 2021: Final 360 prefix assigned. First 564 prefix assigned earlier that year. (Source: Wikipedia)
  • June 15, 2023: WUTC expanded 564 overlay to area code 206 (Docket UT-230108). 564 assignments in 206 began June 10, 2025. (Source: WUTC)

Regulatory History

Area code 360's numbering relief has been governed by both federal and state proceedings. The foundational FCC authority delegates area code relief decisions to state commissions, while the Washington Utilities and Transportation Commission has handled the specific dockets for 360 and its overlay. (Source: WUTC)

YearEventDocketRegulatory Action & Impact
1995Area code splitUT-950446WUTC accepted joint company customer care proposals for the 360 split from 206. Closed adjudication May 11, 1995. (Source: WUTC)
1998FCC delegationCC Docket 96-98FCC implemented 47 C.F.R. § 52.19(a), delegating area code relief authority to state commissions. States may direct split, overlay, or boundary realignment. (Source: FCC)
1999 / 2001Overlay approval & suspensionUT-991535WUTC approved 564 overlay for 360 in October 1999. Suspended implementation August 28, 2001, due to improved number conservation and number pooling. 564 reserved for future use. (Source: WUTC)
2016Overlay re-approvalUT-143787WUTC re-approved 564 overlay with phased implementation. Mandatory 10-digit dialing by September 30, 2017. Approved 3-0. (Source: WUTC)

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 360).

CountyPopulationShare
Clark, WA526,28019.0%
Thurston, WA325,02011.7%
Snohomish, WA299,69410.8%
Kitsap, WA259,3289.3%
Whatcom, WA258,5639.3%
Skagit, WA195,3277.0%
Mason, WA161,8185.8%
Cowlitz, WA118,4374.3%
Lewis, WA103,5263.7%
Grays Harbor, WA92,5883.3%
Island, WA86,7473.1%
Clallam, WA78,8802.8%
Jefferson, WA68,7772.5%
Wahkiakum, WA56,7302.0%
Pierce, WA46,9531.7%
San Juan, WA40,9601.5%
Skamania, WA23,6690.9%
Pacific, WA22,5000.8%
King, WA10,2990.4%

Area Code 360 Family Tree

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206253360425564
2
Total Codes
0
Splits
1
Overlays
1
Max Depth

All Descendants

Code ▲StateType In Service Parent
564WAoverlay28-Aug-2017360

Area code 360 was originally assigned in 15-Jan-1995 to serve WA. Over the years, it has generated 1 descendant area code through a combination of geographic splits and overlays as demand for telephone numbers grew.

Call Context

Mixed urban-rural area

This area code spans a mix of urban centers and rural communities across WA, with Vancouver as a primary city.

Nearby Area Codes

Area codes geographically closest to 360.

Area code 206 map card showing Seattle (light mode)
206WASeattlePacific Time (PT)Geographic
Area code 564 map card showing Seattle (light mode)
564WASeattlePacific Time (PT)Overlay
Area code 253 map card showing Tacoma (light mode)
253WATacomaPacific Time (PT)Split
Area code 425 map card showing Bellevue (light mode)
425WABellevuePacific Time (PT)Split

Other Area Codes in Washington

Area codes that also serve Washington, linked for easy comparison.