CallataGuides

Get a local business phone number in Oak Harbor, WA

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

Area code
360 / 564
Exchanges
21NANPA-assigned
Carriers
8
Population
24,163Census 2024 est.

Area codes in Oak Harbor

With 24,163 residents in the Census 2024 estimate, Oak Harbor sits in Island County, Washington. NANPA lists 21 exchanges for its rate center across 2 area codes; 360 has the most (19, 90%). 360 is part of an overlay with 564, so a new local number in Oak Harbor may carry any of those codes depending on which have numbers available. Oak Harbor is in the Pacific time zone.

According to NANPA's dialing-plan data, local calls within 360 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Oak Harbor, WA
Area codeExchanges hereShareIn service sinceOverlay withTime zone
3601990%1995564Pacific
56429.5%2017206, 360Pacific

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

Oak Harbor exchanges by carrier

8 carriers hold the 21 exchanges assigned to Oak Harbor's rate center. Ziply Fiber Northwest, LLC d/b/a Ziply Fiber has the most, with 6. 14 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 Oak Harbor, WA
Carrier (NANPA operating company)ExchangesShare
Ziply Fiber Northwest, LLC d/b/a Ziply Fiber629%
Cellco Partnership d/b/a Verizon Wireless - Wa419%
T-mobile USA, INC.314%
Teleport Communications America, LLC - Wa29.5%
Level 3 Communications, LLC - Wa29.5%
New Cingular Wireless PCS, LLC29.5%
Onvoy, LLC - Wa14.8%
Ton80 Communications, LLC14.8%

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 Oak Harbor

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Oak Harbor. The earliest assignment date recorded in the file for these codes is 2001. 2 of the 21 were assigned in 2020 or later.

Prefixes assigned in Oak Harbor, WA
Area codePrefixes (NXX)
360240, 246, 257, 279, 320, 323, 499, 544, 632, 639, 672, 675, 678, 679, 682, 720, 914, 929, 969
564549, 676

Source: NANPA utilized central office code file.

When Oak Harbor's exchanges were assigned

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

Oak Harbor, WA: exchanges by decade assigned
Decade assignedExchangesShare
2000s360%
2020s240%

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

How local numbers work in Oak Harbor

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Oak Harbor's numbers are rated to the OAK HARBOR rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Oak Harbor number.

Keeping an existing Oak Harbor number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 360 when you pick it.

Who does business near Oak Harbor

Oak Harbor is part of the Oak Harbor, WA micropolitan area, home to 86,478 people in 2024. County Business Patterns counted 1,941 business establishments in the Oak Harbor, WA micropolitan area in 2023, employing 14,486 people. The largest sectors by establishment count are construction (362), retail trade (224), and health care and social assistance (197).

Selected industries in the Oak Harbor, WA micropolitan area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Residential remodelers762393.1
Offices of real estate agents and brokers681281.9
Landscaping services682754.0
Full-service restaurants6689513.6
New single-family housing construction contractors642534.0
Limited-service restaurants3875519.9
Electrical contractors311695.5
Painting and wall covering contractors30722.4

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

Business phone service in Oak Harbor

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 Oak Harbor 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 7 users, the rounded average establishment size in the Oak Harbor, WA micropolitan area. At list prices checked September 28, 2026, that is $174.65 a month on Ooma Office Pro and $210.00 on RingCentral RingEX Core. Callata comes to $139.00 a month for 7 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for a 7-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$139.00$1,668.00
Quo (Starter)$19.00 per user$133.00$1,596.00
Nextiva (Core)$23.00 per user$161.00$1,932.00
Ooma (Office Pro)$24.95 per user$174.65$2,095.80
Dialpad (Standard)$27.00 per user$189.00$2,268.00
RingCentral (RingEX Core)$30.00 per user$210.00$2,520.00

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 Oak Harbor, WA?

Oak Harbor has exchanges in 360 and 564; 360 has the most.

How many phone companies have exchanges in Oak Harbor?

8, holding 21 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Oak Harbor 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 Oak Harbor?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 7 users come to $139.00 a month. For comparison, 7 users on RingCentral RingEX Core list at $210.00 a month (checked September 28, 2026).