6 area codes assigned to Washington · Pacific Time
3 of Washington's area codes share territory with another. Codes in the same row serve the same places, so either can reach a number there — and ten-digit dialling is required throughout.
The remaining 3 codes cover their own area: 253, 425, 509.
Washington went from one area code in 1947 to 6 today. A split carves territory off its parent; an overlay sits on top of it, which is why newer codes need ten-digit dialling.
Dates from the NANPA area code report, 09/19/2026.
Washington spans 4 LATAs — the regions a call is routed within before it becomes long-haul.
206
Washington
Pacific Time
Overlay · with 564
4,845 blocks · 5 rate centres
253
Washington
Pacific Time
3,503 blocks · 10 rate centres
360
Washington
Pacific Time
Overlay · with 564
5,974 blocks · 75 rate centres
425
Washington
Pacific Time
4,622 blocks · 15 rate centres
509
Washington
Pacific Time
5,826 blocks · 121 rate centres
564
Washington
Pacific Time
Overlay · Jun 10, 2025 · with 206, 360
872 blocks · 32 rate centres
Washington has more than one area code in most regions. Enter a city to see which codes serve it, or check a specific number instead.
Washington has had 3 area codes activated as an overlay since 2021, sharing territory with an existing code rather than carving out new geography. Local calls in an overlaid region must be dialed with all ten digits. Earlier overlays are not listed here.
See every North American overlayWashington is served by 6 area codes in the North American Numbering Plan (NANP): 206, 253, 360, 425, 509, 564. All Washington numbers are in the Pacific Time zone. Click any area code above to see the cities and rate centers it covers, formatted tel: link examples, and to search for available phone numbers.