CallataGuidesGet a local business phone number in Union, OR
Union's area code, prefixes and carriers from NANPA records, and how to put a Union number in front of your customers.
- Area code
- 541
- Exchanges
- 2NANPA-assigned
- Carriers
- 2
- Population
- 2,123Census 2024 est.
Area codes in Union
Union, in Union County, Oregon, had a Census-estimated population of 2,123 in July 2024. All 2 exchanges NANPA lists for its rate center are in area code 541. 541 is part of an overlay with 458, so a new local number in Union may carry any of those codes depending on which have numbers available. Union is in the Mountain and Pacific time zone.
According to NANPA's dialing-plan data, local calls within 541 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 541 | 2 | 100% | 1995 | 458 | Mountain and Pacific |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in Union
2 carriers hold the 2 exchanges assigned to Union's rate center. Ziply Fiber Northwest, LLC d/b/a Ziply Fiber has the most, with 1. 2 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Union can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Ziply Fiber Northwest, LLC d/b/a Ziply Fiber | 1 | 50% |
| Teleport Communications America, LLC - Or | 1 | 50% |
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 Union
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Union's rate center (UNION). The earliest assignment date recorded in the file for these codes is 2015. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 541 | 562, 807 |
Source: NANPA utilized central office code file.
How local numbers work in Union
NANPA ties every exchange to a rate center. For Union that is UNION, so a number from one of these exchanges reads as local to people in and around Union.
If your business already has a Union number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
The local business market
Union is part of the La Grande, OR micropolitan area, home to 26,058 people in 2024. County Business Patterns counted 740 business establishments in the La Grande, OR micropolitan area in 2023, employing 7,702 people. The largest sectors by establishment count are construction (112), retail trade (105), and other services (except public administration) (81).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| New single-family housing construction contractors | 31 | 129 | 4.2 |
| Full-service restaurants | 23 | 341 | 14.8 |
| Limited-service restaurants | 20 | 274 | 13.7 |
| Plumbing, heating and air-conditioning contractors | 15 | 69 | 4.6 |
| Law offices | 14 | 48 | 3.4 |
| Insurance agencies and brokerages | 13 | — | — |
| Landscaping services | 12 | 32 | 2.7 |
| Physician practices | 11 | — | — |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Union
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 Union, 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 10 users, the rounded average establishment size in the La Grande, OR micropolitan area. At list prices checked September 28, 2026, that is $249.50 a month on Ooma Office Pro and $300.00 on RingCentral RingEX Core. On Callata the same 10 people cost $199.00 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 | $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 Union, OR?
541. All exchanges NANPA lists for Union are in 541.
How many phone companies have exchanges in Union?
2, holding 2 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Union 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 Union?
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).