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435 Area Code — Scam Calls, Location & Who's Calling

Area code 435 serves Utah in the Mountain time zone, in service since 1997. The FCC has 1,953 unwanted-call complaints against 1,540 different 435 numbers on record. Look up the exact number that called you below.

Most-reported 435 numbers

Ranked by FCC unwanted-call complaints. Click a number for its full report.

435 unwanted-call complaints, last 12 months

Monthly FCC complaint volume against 435 numbers. Spikes usually mark an active robocall campaign cycling through the code.

Carriers operating in 435

Carriers assigned to 435 prefixes that visitors have looked up so far — resolved from official NPA-NXX assignment records.

  • QWEST CORPORATIONI · 8 prefixes
  • ONVOY, LLC - UTC · 7 prefixes
  • LEVEL 3 COMMUNICATIONS, LLC - UTC · 6 prefixes
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UTWireless · 4 prefixes
  • T-MOBILE USA, INC.Wireless · 4 prefixes
  • BANDWIDTH.COM CLEC, LLC - UTC · 3 prefixes
  • NEW CINGULAR WIRELESS PCS, LLCWireless · 2 prefixes
  • TELEPORT COMMUNICATIONS AMERICA, LLC - UTC · 2 prefixes

About area code 435

Serves
Utah
Time zone
Mountain
In service since
1997-09-21
Overlay
No

Source: NANPA numbering records, refreshed weekly.

Spam calls from 435? What to know

Seeing repeated missed calls from 435 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in Utah — spoofing software displays whatever digits the campaign chooses. Never call unknown numbers back; look them up first, and report unwanted calls to the FCC to build the public record.

Area code 435 FAQs

Where is area code 435?

Area code 435 serves Utah, in the Mountain time zone. It has been in service since 1997.

Why do I keep getting calls from 435 numbers?

Robocallers use "neighbor spoofing" — displaying a number with a local area code to make you more likely to answer. A call showing area code 435 may not originate from Utah at all. Look up the full 10-digit number on this site to see its complaint history before calling back.

Are 435 numbers safe to call back?

Area codes themselves are neither safe nor unsafe — 435 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 1,953 unwanted-call complaints against 1,540 distinct 435 numbers in our current data window. Check the specific number's report page before returning a missed call.