435 Area CodeSt. George, UT
Area code 435 covers St. George and nearby communities in Utah, in the Mountain Time (MT) zone, home to about 749,000 people across 237 cities. It's the only area code for this region, so the three digits alone place the caller.
Overview
- Major City
- St. George
- State
- Utah (UT)
- Timezone
- Mountain Time (MT)
- Current Time
- Overlay
- No – unique area code
Where is area code 435?
Area code 435 serves part of St. George, UT and the surrounding areas. It is a unique area code with no overlays.
Overview of the 435 Area Code
What is the 435 area code?
The 435 area code serves St. George, Utah. When you see a 435 number, it indicates a local number within this geographic area.
Why was area code 435 created?
The 435 area code was established to serve the St. George region in Utah. It provides telephone number coverage across 237 cities.
Geographic Coverage of the 435 Area Code
The 435 area code serves St. George and surrounding areas in Utah. It operates within the Mountain Time (MT) time zone. This area code covers several key cities, including:
- St. George
- Logan
- Tooele
- Cedar City
- Washington
- Hurricane
Got a call from a 435 number? It came from St. George, UT. No other area code overlaps the 435 territory, so the prefix alone identifies where the caller is. Inside 435, St. George holds about 14% of the population; the rest is split across 236 smaller cities.
St. George Area Code Overview
The 435 area code provides comprehensive telephone coverage for St. George and its surrounding communities. As the sole area code for this region, it uniquely identifies all local numbers within the service area.
What cities does area code 435 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| St. George | UT | 106,288 | 0% | 100% |
| Logan | UT | 56,770 | 0% | 100% |
| Tooele | UT | 40,919 | 0% | 100% |
| Cedar City | UT | 40,885 | 0% | 100% |
| Washington | UT | 35,501 | 0% | 100% |
| Hurricane | UT | 24,753 | 0% | 100% |
| Brigham City | UT | 20,319 | 0% | 100% |
| Heber | UT | 19,042 | 0% | 100% |
| Grantsville | UT | 15,682 | 0% | 100% |
| Smithfield | UT | 15,018 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 435 been reported for unwanted calls?
Yes – 192 unwanted-call complaints were reported to the FTC for numbers showing a 435 area code (May 29 – Jul 2, 2026).
- 57% robocalls
- ↓ 30% vs prior period
Most-reported subjects
- Other43%83
- Calls pretending to be government, businesses, or family and friends15%29
- Medical & prescriptions13%24
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 435?
48% assigned to a telco
- 67% Landline
- 33% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (435)200- | Landline | Allstream |
| (435)201- | Wireless | Verizon Wireless |
| (435)202- | Landline | Union Telephone |
| (435)203- | Wireless | New Cingular Wireless Pcs |
| (435)204- | Wireless | Usa Mobility Wireless |
| (435)205- | Wireless | Commnet Wireless |
| (435)206- | Wireless | Usa Mobility Wireless |
| (435)207- | Landline | Frontier Comm Of Ut |
| (435)209- | Wireless | New Cingular Wireless Pcs |
| (435)210- | Wireless | Verizon Wireless |
Frequently Asked Questions about the 435 Area Code
Who called me from a 435 number?
A 435 number is assigned to St. George, Utah, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 435 code to look nearby, so a 435 number doesn't prove the caller is local. Recently, 192 unwanted-call complaints were reported to the FTC for numbers showing the 435 code (57% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 435 a scam area code?
No area code is a scam on its own. 435 is a normal, officially assigned code for St. George, Utah. Spam callers spoof local codes to raise the odds you answer, so 435 on your caller ID says nothing about who is really calling. Recently, 192 unwanted-call complaints were reported to the FTC for numbers showing the 435 code (57% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 435 area code?
Repeated calls from different 435 numbers are usually spoofing: a robocaller rotates through 435 numbers so each call looks local and slips past simple blocks. Recently, 192 unwanted-call complaints were reported to the FTC for numbers showing the 435 code (57% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 435 number?
If you aren't expecting a 435 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 435 area code?
Block a single 435 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 435 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 435?
Area code 435 covers St. George and the surrounding area in Utah, spanning 237 cities with about 748,679 residents. No other code overlays this region, so 435 alone identifies the area.
Is 435 a real area code?
Yes. 435 is an active code in the North American Numbering Plan, assigned by NANPA and in service for St. George, Utah. A real code can still show up on spoofed spam calls, so treat unknown 435 calls with normal caution.
What timezone is the 435 area code in?
The 435 area code is in the Mountain Time (MT). Because a number can be kept when someone moves or switches to VoIP, a specific 435 caller may not be in that zone.
How do I call a 435 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 435 and the seven-digit number. From a mobile phone you can usually just enter +1 435 followed by the number and let the phone add the exit code for you.