CallataGuidesGet a local business phone number in St. George, UT
St. George's area code, prefixes and carriers from NANPA records, and how to put a St. George number in front of your customers.
- Area code
- 435
- Exchanges
- 53NANPA-assigned
- Carriers
- 12
- Population
- 106,288Census 2024 est.
What area code is St. George, UT?
St. George, in Washington County, Utah, had a Census-estimated population of 106,288 in July 2024. All 53 exchanges NANPA lists for its rate center are in area code 435. St. George 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 | 53 | 100% | 1997 | none | Mountain |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds St. George phone exchanges
12 carriers hold the 53 exchanges assigned to St. George's rate center. Qwest Corporation has the most, with 14. 40 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Qwest Corporation | 14 | 26% |
| T-mobile USA, INC. | 9 | 17% |
| New Cingular Wireless PCS, LLC | 6 | 11% |
| Onvoy, LLC - Ut | 5 | 9.4% |
| Cellco Partnership d/b/a Verizon Wireless - Ut | 5 | 9.4% |
| Level 3 Communications, LLC - Ut | 4 | 7.5% |
| Bandwidth.com CLEC, LLC - Ut | 3 | 5.7% |
| TDS Broadband Service LLC | 2 | 3.8% |
| Fractel, LLC | 2 | 3.8% |
| South Central Utah Tel. Assn., INC. | 1 | 1.9% |
| Centurylink Communications, LLC | 1 | 1.9% |
| Electric Lightwave LLC d/b/a Allstream | 1 | 1.9% |
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 St. George
These are the central office codes NANPA records for St. George. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 8 of the 53 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 435 | 215, 216, 218, 229, 236, 251, 256, 272, 275, 288, 301, 313, 319, 351, 357, 359, 360, 366, 375, 377, 414, 429, 467, 522, 523, 525, 574, 599, 619, 627, 628, 632, 634, 635, 652, 656, 668, 669, 673, 674, 680, 688, 703, 705, 767, 772, 773, 817, 862, 879, 900, 922, 986 |
Source: NANPA utilized central office code file.
When St. George's exchanges were assigned
Assignment dates show when each block of St. George numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 6 | 25% |
| 2010s | 10 | 42% |
| 2020s | 8 | 33% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
What makes a number local to St. George
What a caller sees as "local" is the area code plus prefix. In St. George, those come from the ST GEORGE rate center, as recorded by NANPA.
Keeping an existing St. George number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 435 when you pick it.
Businesses around St. George
St. George is part of the St. George, UT metro area, home to 208,000 people in 2024. County Business Patterns counted 7,191 business establishments in the St. George, UT metro area in 2023, employing 69,411 people. The largest sectors by establishment count are construction (1,335), professional, scientific, and technical services (933), and health care and social assistance (816).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Offices of real estate agents and brokers | 300 | 428 | 1.4 |
| Physician practices | 190 | 1,750 | 9.2 |
| New single-family housing construction contractors | 185 | 767 | 4.1 |
| Limited-service restaurants | 176 | 3,868 | 22.0 |
| Landscaping services | 162 | 864 | 5.3 |
| Management consulting firms | 154 | 328 | 2.1 |
| Plumbing, heating and air-conditioning contractors | 144 | 1,014 | 7.0 |
| Full-service restaurants | 126 | 3,198 | 25.4 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A St. George number on Callata
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 St. George, 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 10-person team is the benchmark here, the rounded average establishment size in the St. George, UT metro 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. 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 St. George, UT?
435. All exchanges NANPA lists for St. George are in 435.
How many phone companies have exchanges in St. George?
12, holding 53 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing St. George 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 St. George?
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).