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Get a local business phone number in Seattle, WA

Seattle's area code, prefixes and carriers from NANPA records, and how to put a Seattle number in front of your customers.

Area code
206
Exchanges
676NANPA-assigned
Carriers
48
Population
780,995Census 2024 est.

Seattle area codes

Seattle, in King County, Washington, had a Census-estimated population of 780,995 in July 2024. All 676 exchanges NANPA lists for its rate center are in area code 206. 206 is part of an overlay with 564, so a new local number in Seattle may carry any of those codes depending on which have numbers available. Seattle is in the Pacific time zone.

According to NANPA's dialing-plan data, local calls within 206 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Seattle, WA
Area codeExchanges hereShareIn service sinceOverlay withTime zone
206676100%1947564Pacific

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Phone carriers in Seattle

48 carriers hold the 676 exchanges assigned to Seattle's rate center. Qwest Corporation has the most, with 235. 351 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Carriers holding exchanges in Seattle, WA
Carrier (NANPA operating company)ExchangesShare
Qwest Corporation23535%
T-mobile USA, INC.8713%
Cellco Partnership d/b/a Verizon Wireless - Wa578.4%
Onvoy, LLC - Wa548.0%
New Cingular Wireless PCS, LLC497.2%
Level 3 Communications, LLC - Wa294.3%
Mcimetro Access Transmission Services LLC284.1%
Electric Lightwave LLC d/b/a Allstream233.4%
Spok, INC.233.4%
Teleport Communications America, LLC - Wa192.8%
Metropcs, INC.71.0%
Paetec Itel, LLC50.74%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Exchanges (NPA-NXX) assigned in Seattle

These are the central office codes NANPA records for Seattle. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 51 of the 676 were assigned in 2020 or later.

Prefixes assigned in Seattle, WA
Area codePrefixes (NXX)
206200, 202, 203, 204, 205, 206, 207, 208, 209, 210, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 232, 233, 234, 235, 236, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 250, 251, 252, 254, 255, 256, 257, 258, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 305, 306, 307, 308, 309, 310, 313, 314, 315, 316, 318, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 402, 403, 404, 405, 406, 407, 409, 410, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 426, 427, 428, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 452, 453, 454, 455, 456, 457, 458, 459, 461, 462, 464

First 240 of 676 prefixes. Source: NANPA.

When Seattle's exchanges were assigned

The table groups Seattle's exchanges by the decade NANPA recorded them as assigned.

Seattle, WA: exchanges by decade assigned
Decade assignedExchangesShare
2000s3820%
2010s9752%
2020s5127%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

What makes a number local to Seattle

What a caller sees as "local" is the area code plus prefix. In Seattle, those come from the SEATTLE rate center, as recorded by NANPA.

New local numbers are drawn from carrier inventory, so the exact 206 numbers available change over time; porting an existing number is free.

The local business market

Seattle is part of the Seattle-Tacoma-Bellevue, WA metro area, home to 4.1 million people in 2024. County Business Patterns counted 110,685 business establishments in the Seattle, WA metro area in 2023, employing 1,884,361 people. The largest sectors by establishment count are professional, scientific, and technical services (14,812), construction (13,610), and health care and social assistance (13,557).

Selected industries in the Seattle, WA metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Full-service restaurants3,87665,71117.0
Offices of real estate agents and brokers3,4499,3532.7
Limited-service restaurants2,93948,47116.5
Residential remodelers2,88210,4443.6
Dental offices2,18918,5928.5
Law offices2,14615,2717.1
Physician practices1,63037,42023.0
Landscaping services1,58311,0016.9

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

Business phone service in Seattle

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

Porting a number you already use in Seattle is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

The comparison below uses 17 users, the rounded average establishment size in the Seattle, WA metro area. At list prices checked September 28, 2026, that is $424.15 a month on Ooma Office Pro and $510.00 on RingCentral RingEX Core. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for a 17-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$339.00$4,068.00
Quo (Starter)$19.00 per user$323.00$3,876.00
Nextiva (Core)$23.00 per user$391.00$4,692.00
Ooma (Office Pro)$24.95 per user$424.15$5,089.80
Dialpad (Standard)$27.00 per user$459.00$5,508.00
RingCentral (RingEX Core)$30.00 per user$510.00$6,120.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Frequently asked questions

What area code is Seattle, WA?

206. All exchanges NANPA lists for Seattle are in 206.

How many phone companies have exchanges in Seattle?

48, holding 676 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Seattle business number?

Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.

How much is a business phone line in Seattle?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 17 users come to $339.00 a month. For comparison, 17 users on RingCentral RingEX Core list at $510.00 a month (checked September 28, 2026).