CallataGuidesGet a local business phone number in Castle Dale, UT
Castle Dale's area code, prefixes and carriers from NANPA records, and how to put a Castle Dale number in front of your customers.
- Area code
- 435
- Exchanges
- 8NANPA-assigned
- Carriers
- 2
- Population
- 1,537Census 2024 est.
Castle Dale area codes
Castle Dale, in Emery County, Utah, had a Census-estimated population of 1,537 in July 2024. All 8 exchanges NANPA lists for its rate center are in area code 435. Castle Dale is in the Mountain time zone.
According to NANPA's dialing-plan data, local calls within 435 are dialed as seven digits and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 435 | 8 | 100% | 1997 | none | Mountain |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Castle Dale exchanges by carrier
2 carriers hold the 8 exchanges assigned to Castle Dale's rate center. Emery Telephone d/b/a Emery Telcom has the most, with 6. 2 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Emery Telephone d/b/a Emery Telcom | 6 | 75% |
| Cellco Partnership d/b/a Verizon Wireless - Ut | 2 | 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.
Castle Dale phone prefixes
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Castle Dale's rate center (CASTLEDALE). None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 435 | 286, 381, 384, 609, 653, 687, 748, 749 |
Source: NANPA utilized central office code file.
How local numbers work in Castle Dale
What a caller sees as "local" is the area code plus prefix. In Castle Dale, those come from the CASTLEDALE rate center, as recorded by NANPA.
Keeping an existing Castle Dale number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 435 when you pick it.
The local business market
Castle Dale is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 95,494 business establishments in Utah in 2023, employing 1,579,974 people. The largest sectors by establishment count are professional, scientific, and technical services (13,540), construction (13,022), and health care and social assistance (10,381).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Offices of real estate agents and brokers | 3,171 | 4,891 | 1.5 |
| Limited-service restaurants | 2,801 | 59,380 | 21.2 |
| Management consulting firms | 2,118 | 8,394 | 4.0 |
| Physician practices | 2,096 | 23,386 | 11.2 |
| Full-service restaurants | 1,799 | 41,107 | 22.8 |
| Dental offices | 1,789 | 15,047 | 8.4 |
| Insurance agencies and brokerages | 1,659 | 9,491 | 5.7 |
| New single-family housing construction contractors | 1,484 | 5,840 | 3.9 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Castle Dale
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 Castle Dale, 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.
A 17-person team is the benchmark here, the rounded average establishment size in Utah. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $510.00 a month and Ooma Office Pro $424.15. On Callata the same 17 people cost $339.00 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 | $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 Castle Dale, UT?
435. All exchanges NANPA lists for Castle Dale are in 435.
How many phone companies have exchanges in Castle Dale?
2, holding 8 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Castle Dale 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 Castle Dale?
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).