435 Area Code — St. George, UT
Area code 435 serves St. George and 3 other cities in Utah. Local time follows America/Denver. It has no overlay codes.
- State
- Utah
- Primary city
- St. George
- Timezone
- America/Denver
- In service since
- 1997
- Type
- Geographic
- Overlay codes
- None
Cities Served by 435
The 435 area code covers 4 cities and communities in Utah.
- St. George
- Logan
- Cedar City
- Vernal
About Area Code 435
Area code 435 is a North American Numbering Plan (NANP) area code that has been in service since 1997. It is administered by NANPA on behalf of the FCC and serves the Utah region anchored on St. George.
435 is currently a single-coverage geographic area code with no overlays. This means a 7-digit number in this area code is unique within its rate centers, though best-practice is always to dial the full 10-digit number when contacting a 435 line.
Mobile numbers in 435 are portable: a person who moved away from St. George may still carry a 435 mobile number on their device. If you receive an unexpected call from a 435 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in Utah, you may also interact with neighbouring or overlay codes. See the related codes section below to explore the rest of Utah.
Other Utah Area Codes
Continue exploring the Utah numbering plan.
435 Area Code FAQ
Where is area code 435?
Area code 435 is located in Utah, primarily serving St. George and surrounding cities including Logan, Cedar City, Vernal. The region operates on MT (America/Denver) time.
What state is 435 area code?
435 is a Utah area code. It was put into service in 1997 and has no overlay codes — it covers its geographic area exclusively.
Is 435 a scam area code?
435 is a legitimate North American area code allocated by NANPA to Utah. Like any geographic area code, scammers sometimes spoof 435 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 435 use?
Area code 435 operates on MT (America/Denver). Numbers in this area code follow standard Utah time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 435 phone number?
Yes. Use the reverse lookup widget above to enter a full 435 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.