Area Code 253
Washington
Area code 253 serves Washington, primarily Tacoma, in the Pacific Time (PT) time zone. It was created from a split of area code 206.
Split Area Code
This area code was created by splitting an existing area code into separate geographic regions. When a split occurs, some customers in the original area code region are assigned the new area code.
This area code was split from area code 206 (Seattle).
In service since: 27-Apr-1997
Historical Timeline of Area Code 253
Area code 253 was created on April 27, 1997, as part of a rare three-way split of area code 206 into three NPAs: 206 (Seattle core), 253 (Tacoma and south Puget Sound), and 425 (east side and north). The 253 NPA serves Tacoma, Kent, Federal Way, Auburn, Lakewood, and Puyallup in Washington state. It is projected to receive the 564 overlay when its number supply exhausts around Q3 2053. Source: Wikipedia
Key milestones:
- 1947: Area code 206 created as one of the original 86 North American area codes, serving all of Washington state (Source: Wikipedia)
- 1957: 206 split into 206 and 509, with 509 assigned to eastern Washington (Source: Wikipedia)
- 1995: 206 split into 206 and 360, with 360 assigned to western Washington outside the Seattle metro (Source: Wikipedia)
- 1997: 253 created via three-way split of 206 on April 27, 1997. Assigned to Tacoma and the south Puget Sound region. Permissive dialing period ended November 16, 1997 (Source: Wikipedia)
- 2000: Washington Utilities and Transportation Commission (UTC) approved the 564 all-services overlay for 206, 253, 425, and 360 under Docket UT-991535. Permissive 10-digit dialing began September 1, 2000 (Source: UTC Docket UT-991535)
- 2001: UTC suspended 564 overlay implementation on August 28, 2001, due to successful number conservation efforts (Source: UTC Docket UT-991535)
- 2016: UTC approved a phased 564 overlay for western Washington under Docket UT-143787 on May 19, 2016 (Source: UTC Docket UT-143787)
- 2017: 564 overlay activated for the 360 NPA. Mandatory 10-digit local dialing implemented throughout western Washington (Source: UTC 564 Overlay)
- 2023: UTC approved expansion of the 564 overlay to the 206 NPA under Docket UT-230108 on June 15, 2023 (Source: UTC Docket UT-230108)
- 2025: 564 overlay placed in service for the 206 NPA on June 10, 2025. The 253 NPA is projected to exhaust in Q3 2053 (Source: UTC Docket UT-230108)
The creation of 253 reflected rapid population growth in the Puget Sound region during the 1990s. Washington state's numbering plan has been managed by the UTC, which has overseen multiple overlay and split events to address number exhaustion across western Washington. The 564 overlay follows a phased activation approach, activating for each NPA as it exhausts rather than simultaneously across all regions.
Unique Facts About Area Code 253
Area code 253 has several notable characteristics related to its origin, overlay history, and projected lifespan. Source: Wikipedia
- Rare three-way split: Area code 253 was created as part of a simultaneous three-way split of area code 206 into 206, 253, and 425 on April 27, 1997. Most area code splits create only two NPAs. The three-way split was driven by rapid cell phone, fax, and pager adoption in the Puget Sound region (Source: Wikipedia)
- 17-year overlay delay: The 564 overlay was originally approved in 2000 under UTC Docket UT-991535 but suspended in 2001 due to successful number conservation. It was not activated until 2017 for the 360 NPA, a 17-year gap between initial approval and activation (Source: UTC Docket UT-991535; Source: UTC Docket UT-143787)
- Projected 56-year lifespan: Area code 253 is projected to exhaust its number supply in Q3 2053, giving it a projected lifespan of approximately 56 years before needing overlay relief. This projection is based on NANPA's April 2015 NRUF forecast (Source: UTC Docket UT-143787)
- Phased overlay approach: The 564 overlay uses a phased activation strategy: 360 NPA in 2017, 206 NPA in 2025, and 253 and 425 NPAs when each exhausts. This approach allows each region to use number conservation measures independently before receiving overlay relief (Source: UTC Docket UT-143787; Source: UTC Docket UT-230108)
- Mandatory 10-digit dialing: Washington State has mandatory ten-digit local dialing statewide, implemented in 2017 for western Washington when the 564 overlay activated for the 360 NPA (Source: UTC Washington State Area Codes)
The combination of a three-way split origin, a 17-year overlay delay, and a projected 56-year lifespan before exhaustion makes 253 one of the more extensively documented area codes in Washington state's numbering history.
FCC Regulatory History
Area code 253 has been the subject of three major UTC regulatory dockets and two NANPA planning letters. The regulatory history follows an approve-suspend-re-approve arc spanning 25 years, reflecting the tension between number conservation and overlay planning. Source: UTC Washington State Area Codes
| Year | Event | Docket | Regulatory Action & Impact |
|---|---|---|---|
| 1996 | Three-way split documented | PL-19 | NANPA Planning Letter PL-19 documented the three-way split of 206 into 206, 253, and 425, effective April 27, 1997 (Source: NANPA Planning Letters) |
| 1999-2001 | 564 overlay approved then suspended | UT-991535 | UTC approved a 564 all-services overlay for 206, 253, 360, and 425 on May 10, 2000. Suspended on August 28, 2001, due to successful number conservation (Source: UTC Docket UT-991535) |
| 2000 | 564 overlay plan implemented | PL-239 | NANPA Planning Letter PL-239 implemented the 564 overlay plan. Permissive 10-digit dialing began September 1, 2000 (Source: NANPA PL-239) |
| 2001 | 564 overlay suspended | PL-298 | NANPA Planning Letter PL-298 documented the suspension of the 564 overlay and mandatory 10-digit dialing per UTC decision |
| 2014-2016 | Phased 564 overlay approved | UT-143787 | UTC unanimously approved a phased all-services overlay of 564 for western Washington on May 19, 2016. Mandatory 10-digit dialing required by September 30, 2017 (Source: UTC Docket UT-143787) |
| 2023 | 564 expanded to 206 NPA | UT-230108 | UTC approved expansion of the 564 overlay to the 206 NPA on June 15, 2023, with 564 numbers available starting June 10, 2025 (Source: UTC Docket UT-230108) |
County Coverage
Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 253).
| County | Population | Share |
|---|---|---|
| Pierce, WA | 926,509 | 67.4% |
| King, WA | 431,230 | 31.4% |
| Kitsap, WA | 16,070 | 1.2% |
Call Context
This area code covers multiple cities and communities across a broad region in Washington. It was created as a geographic split from area code 206, dividing the original territory into separate numbering regions.
Nearby Area Codes
Area codes geographically closest to 253.
Other Area Codes in Washington
Area codes that also serve Washington, linked for easy comparison.
Frequently Asked Questions
Common questions about area code 253 and how phone numbering works.
Phone numbers are assigned based on where the number was originally provisioned, not the caller's current location. Mobile phones retain their number when users move, and businesses may use numbers from regions where they don't have a physical presence. VoIP services can also provision numbers from virtually any area code.
Yes, mobile phones can have numbers from any area code in the region they were activated. Wireless carriers assign numbers from available pools regardless of phone type. When users change carriers or move to new areas, they typically keep their original number, which may have a different area code than their current location.
Start by looking up the area code on this site to understand its general geographic region. For the specific number, options include using your carrier's caller ID features or checking public directories. If you suspect fraud, you can report it to the FTC. To file a complaint about robocalls or spoofed numbers, visit the FCC Consumer Complaint Center. You can also register your number with the National Do Not Call Registry to reduce unwanted calls. Keep in mind that caller ID can display any name the caller chooses to set.
Area codes are sometimes "split" when an existing code runs out of available number combinations. In a split, the original territory is divided geographically, with each portion receiving its own area code. This area code was split from area code 206. See our guide on splits and overlays for details.
While Washington is a prominent city in this area code's coverage, the code serves the broader surrounding region as well. Area codes are assigned geographically and typically cover multiple cities, towns, and communities beyond any single anchor city.
The estimated total population served by area code 253 is based on aggregated U.S. Census Bureau data for the counties within this area code. The population varies significantly between dense urban codes serving millions and rural codes covering smaller populations. You can find the specific population figure in the demographics section above.