CallataGuidesGet a local business phone number in Dayton, OR
Dayton's area codes, prefixes and carriers from NANPA records, and how to put a Dayton number in front of your customers.
- Area code
- 503 / 971
- Exchanges
- 4NANPA-assigned
- Carriers
- 4
- Population
- 2,663Census 2024 est.
Dayton area codes
With 2,663 residents in the Census 2024 estimate, Dayton sits in Yamhill County, Oregon. NANPA lists 4 exchanges for its rate center across 2 area codes; 503 has the most (2, 50%). 503 is part of an overlay with 971, so a new local number in Dayton may carry any of those codes depending on which have numbers available. Dayton 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.
Dayton exchanges by carrier
4 carriers hold the 4 exchanges assigned to Dayton's rate center. Bandwidth.com CLEC, LLC - Or has the most, with 1. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Dayton can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Bandwidth.com CLEC, LLC - Or | 1 | 25% |
| Ziply Fiber Northwest, LLC d/b/a Ziply Fiber | 1 | 25% |
| Electric Lightwave LLC d/b/a Allstream | 1 | 25% |
| Onvoy, LLC - Or | 1 | 25% |
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.
Dayton phone prefixes
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Dayton's rate center (DAYTON). The earliest assignment date recorded in the file for these codes is 2001. 1 of the 4 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 503 | 714, 864 |
| 971 | 545, 771 |
Source: NANPA utilized central office code file.
When Dayton's exchanges were assigned
Assignment dates show when each block of Dayton numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2020s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in Dayton
NANPA ties every exchange to a rate center. For Dayton that is DAYTON, so a number from one of these exchanges reads as local to people in and around Dayton.
If your business already has a Dayton number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
The local business market
Dayton is part of the Portland-Vancouver-Hillsboro, OR-WA metro area, home to 2.5 million people in 2024. County Business Patterns counted 72,943 business establishments in the Portland, OR-WA metro area in 2023, employing 1,111,602 people. The largest sectors by establishment count are health care and social assistance (9,591), professional, scientific, and technical services (9,313), and construction (8,453).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 2,413 | 39,445 | 16.3 |
| Limited-service restaurants | 1,960 | 34,372 | 17.5 |
| Offices of real estate agents and brokers | 1,709 | 3,651 | 2.1 |
| Residential remodelers | 1,469 | 6,812 | 4.6 |
| Law offices | 1,440 | 8,989 | 6.2 |
| Dental offices | 1,210 | 9,969 | 8.2 |
| New single-family housing construction contractors | 1,206 | 3,833 | 3.2 |
| Physician practices | 1,066 | 16,914 | 15.9 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Dayton
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.
If you already have a number in Dayton, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.
Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.
The comparison below uses 15 users, the rounded average establishment size in the Portland, OR-WA metro area. At list prices checked September 28, 2026, that is $374.25 a month on Ooma Office Pro and $450.00 on RingCentral RingEX Core. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $299.00 | $3,588.00 |
| Quo (Starter) | $19.00 per user | $285.00 | $3,420.00 |
| Nextiva (Core) | $23.00 per user | $345.00 | $4,140.00 |
| Ooma (Office Pro) | $24.95 per user | $374.25 | $4,491.00 |
| Dialpad (Standard) | $27.00 per user | $405.00 | $4,860.00 |
| RingCentral (RingEX Core) | $30.00 per user | $450.00 | $5,400.00 |
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 Dayton, OR?
Dayton has exchanges in 503 and 971; 503 has the most.
How many phone companies have exchanges in Dayton?
4, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Dayton 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 Dayton?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 15 users come to $299.00 a month. For comparison, 15 users on RingCentral RingEX Core list at $450.00 a month (checked September 28, 2026).