This guide explains where each code is used, how ten-digit dialing works, and what a call from 206 does and doesn't tell you. It also covers safe number lookups and how to pick a Seattle number for privacy or business.
Key Takeaways
- 206 centers on Seattle, 425 covers the Eastside, and 253 covers Tacoma and the South Sound.
- 564 overlays 206 for new numbers; existing 206 numbers stay the same.
- A local-looking area code never proves where a caller actually is.
- A virtual Seattle number separates work from personal calls without changing your mobile number.
What Are the Seattle Area Codes?
Seattle's codes came from a 1997 split of the old 206 area. The UTC's statewide page lists six Washington codes: 206, 253, 360, 425, 509, and 564.
The 206 area code
206 is the traditional Seattle code. The UTC lists Seattle, Shoreline, Lake Forest Park, Mercer Island, Bainbridge Island, Vashon Island, and the northern portion of Des Moines.
The 425 area code
425 serves communities north and east of Lake Washington. The 1996 split plan names Everett and Renton/Maple Valley. Eastside cities such as Bellevue, Redmond, Kirkland, Issaquah, and Sammamish are commonly associated with 425, even though official numbering lists may not name each city. Confirm a specific exchange in a current numbering database.
The 253 area code
253 covers Tacoma and the South Sound. The split plan names Kent, Federal Way, Tacoma, and Gig Harbor. Auburn and Puyallup are often grouped here too, so verify them before relying on that.
The 564 overlay
564 first overlaid the 360 area in 2017. In June 2023, the UTC issued an order extending the overlay to the 206 area. Starting June 10, 2025, new lines in 206 may receive 564 once 206 numbers run out, according to the UTC announcement. Existing 206 numbers are unchanged.
Seattle codes versus Washington codes
Washington's other codes (360, 509) serve different regions. Codes can change through splits, overlays, and conservation measures, so use the UTC or NANPA directory for the current statewide list.
Seattle Phone Numbers: Dialing, Overlays, and Number Format
How a US phone number is structured
A US number has a three-digit area code plus a seven-digit local number, ten digits in all. The format looks like (206) 555-0123, a placeholder, not a real number.
Ten-digit dialing in the Seattle region
Overlay areas require ten digits (or 1 + ten digits) for local calls. Washington moved to mandatory ten-digit dialing across 206, 253, 360, and 425 in 2017, so adding 564 to 206 changed nothing for callers.
International callers dial +1, then the ten-digit number. +1 is shared across North American countries, not the US alone.
What an overlay changes and doesn't
An overlay assigns a second code to the same geographic area. NANPA's FAQ says existing customers keep their numbers, new codes go to new customers or added lines, and local calling areas stay put.
- 564 and 206 numbers are local to each other
- Your 206 number doesn't need replacing
- Neighbors may now have a different code than you
Update your systems and materials
Store and display the full ten-digit number everywhere so 564 customers can reach you. Check:
- Phone contacts and speed dials
- PBX and VoIP systems, which the FCC says may need reprogramming
- Fax machines, voicemail, and call-forwarding rules
- Security systems and medical-alert devices (confirm with the vendor)
- Websites, business cards, email signatures, and ads
How to Choose and Get a Seattle Phone Number
Choose based on your market
Pick the code that matches your customers:
- 206 for Seattle proper
- 425 for the Eastside
- 253 for the South Sound
A local number builds recognition, but it doesn't prove you have a physical location there, so don't present it that way.
Choose based on how you'll use it
Common uses include:
- A secondary line that keeps your personal mobile private
- A small-business or sales line
- Real estate and property-management calls
- Online selling on Craigslist or Facebook Marketplace
- Ad tracking, with a separate number per campaign
- Travel and remote work
Virtual versus traditional mobile numbers
A virtual number routes calls to your existing phone and is managed from web or app tools. A mobile number ties to a carrier plan and device. Before signing up, check:
- Porting options
- 911 support and address registration
- Text compatibility and verification-code support, which vary by provider
The FCC warns that VoIP 911 may misroute or fail during outages.
Steps to get a Seattle-area number
- Decide which coverage area you want.
- Search current inventory for 206, 425, 253, or 564.
- Choose the features you need.
- Set up forwarding and voicemail.
- Test calls and texts.
Availability changes, so confirm fees, cancellation rules, and porting terms first.
Tossable Digits as a privacy-focused option
Tossable Digits, operated by Telusion, Inc. since 2005, offers Seattle virtual numbers in 206, 425, and 253. Calls and texts forward to any existing phone worldwide. Every plan includes call recording, voicemail-to-email, unlimited SMS, and robocall blocking, with no contract.
Existing Seattle numbers can be ported at no fee. Local-number SMS is limited to person-to-person messaging, so promotional texts need a toll-free number. Availability depends on inventory.
Using and Checking Seattle Phone Numbers Safely
Why am I receiving calls from area code 206?
The caller could be a Seattle resident, business, mobile user, or virtual-number customer. The code alone can't confirm identity or location. The FCC describes neighbor spoofing, where scammers fake a local number.
- Let unexpected calls go to voicemail
- Don't click unexpected links or share sensitive information
- Call back using a number from an official statement, not the caller ID
Finding what an area code covers
Use the UTC, NANPA, your carrier, or a reputable directory, and check the full ten-digit number. A ZIP code like 98101 is a postal delivery code and can't tell you someone's phone area code.
Looking up landline and mobile numbers
Reverse-lookup tools give limited results. Mobile, VoIP, private, ported, and spoofed numbers are often unidentifiable. When you look a number up:
- Use reputable services only
- Avoid publishing personal details
- Treat results as clues, not proof
Frequently Asked Questions
What are the area codes for Seattle, Washington?
The main codes are 206, 425, and 253. 564 overlays the 206 region. Check the Washington UTC or NANPA for exact boundaries.
How can I find what area an area code covers?
Use NANPA, the UTC, a carrier directory, or a reputable lookup tool. Even the full number may not reveal where the caller is now.
Why am I getting calls from area code 206?
They may be real Seattle-area calls from mobile or virtual numbers, including ported ones. Spoofing is also common, so send unexpected calls to voicemail.
How do I look up phone numbers, including mobile numbers?
Reverse-lookup services exist but struggle with mobile, VoIP, private, ported, and spoofed numbers. Protect your own personal information while searching.
What are the area codes for Washington state?
Washington uses 206, 253, 360, 425, 509, and 564 across different regions. See the UTC or NANPA for the current list.
How many digits are in an area code?
Three. An area code plus the seven-digit local number forms a ten-digit US phone number.
