CallataGuidesGet a local business phone number in Seaside, OR
Seaside's area codes, prefixes and carriers from NANPA records, and how to put a Seaside number in front of your customers.
- Area code
- 503 / 971
- Exchanges
- 10NANPA-assigned
- Carriers
- 4
- Population
- 7,110Census 2024 est.
What area code is Seaside, OR?
Seaside city is a Census place in Clatsop County, Oregon, with an estimated 7,110 residents in 2024. NANPA lists 10 exchanges for its rate center across 2 area codes; 503 has the most (5, 50%). 503 is part of an overlay with 971, so a new local number in Seaside may carry any of those codes depending on which have numbers available. Seaside is in the Pacific time zone.
According to NANPA's dialing-plan data, local calls within 503 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Phone carriers in Seaside
4 carriers hold the 10 exchanges assigned to Seaside's rate center. T-mobile USA, INC. has the most, with 4. 10 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Seaside can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| T-mobile USA, INC. | 4 | 40% |
| Cellco Partnership d/b/a Verizon Wireless - Or | 3 | 30% |
| Qwest Corporation | 2 | 20% |
| New Cingular Wireless PCS, LLC | 1 | 10% |
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.
Local prefixes for Seaside
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Seaside's rate center (SEASIDE). The earliest assignment date recorded in the file for these codes is 2001. 2 of the 10 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 503 | 440, 470, 717, 738, 739 |
| 971 | 320, 326, 395, 475, 601 |
Source: NANPA utilized central office code file.
When Seaside's exchanges were assigned
The table groups Seaside's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 17% |
| 2010s | 3 | 50% |
| 2020s | 2 | 33% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in Seaside
What a caller sees as "local" is the area code plus prefix. In Seaside, those come from the SEASIDE rate center, as recorded by NANPA.
If your business already has a Seaside number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around Seaside
Seaside is part of the Astoria, OR micropolitan area, home to 41,043 people in 2024. County Business Patterns counted 1,602 business establishments in the Astoria, OR micropolitan area in 2023, employing 16,327 people. The largest sectors by establishment count are accommodation and food services (302), retail trade (270), and construction (203).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 100 | 1,841 | 18.4 |
| Hotels and motels | 59 | 1,076 | 18.2 |
| New single-family housing construction contractors | 55 | 128 | 2.3 |
| Limited-service restaurants | 50 | 890 | 17.8 |
| Offices of real estate agents and brokers | 43 | 214 | 5.0 |
| Residential remodelers | 35 | 131 | 3.7 |
| Landscaping services | 29 | 114 | 3.9 |
| Physician practices | 22 | 137 | 6.2 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Seaside business line
Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.
Porting a number you already use in Seaside 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.
A 10-person team is the benchmark here, the rounded average establishment size in the Astoria, OR micropolitan area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $300.00 a month and Ooma Office Pro $249.50. Callata comes to $199.00 a month for 10 users ($99 a month with 5 users included, then $20 per additional user), below both.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $199.00 | $2,388.00 |
| Quo (Starter) | $19.00 per user | $190.00 | $2,280.00 |
| Nextiva (Core) | $23.00 per user | $230.00 | $2,760.00 |
| Ooma (Office Pro) | $24.95 per user | $249.50 | $2,994.00 |
| Dialpad (Standard) | $27.00 per user | $270.00 | $3,240.00 |
| RingCentral (RingEX Core) | $30.00 per user | $300.00 | $3,600.00 |
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 Seaside, OR?
Seaside has exchanges in 503 and 971; 503 has the most.
How many phone companies have exchanges in Seaside?
4, holding 10 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Seaside 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 Seaside?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 10 users come to $199.00 a month. For comparison, 10 users on RingCentral RingEX Core list at $300.00 a month (checked September 28, 2026).