What area code is 406?
Here's everything about it.
Instant lookup for the 406 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
406 at a glance
Summary
Cities & regions served by 406
Statewide Montana1 community on record for 406.
Where 406 sits on the map
No overlayCoverage area
About the 406 region
406 covers Statewide Montana in Montana. The code has been in service since 1947 and is one of the original North American area codes.
406 currently has no overlay, so its territory keeps a single, unshared code.
Who called me from 406?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 406 does not prove the caller is really in the 406 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 406 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 406 number below.
Frequently asked questions
FAQWhat area code is 406?+–
406 is a telephone area code serving Statewide Montana in Montana, United States, in service since 1947.
Where is area code 406 located?+–
It covers Statewide Montana in Montana.
What time zone is 406?+–
406 observes Mountain (MT), which is UTC−7 / −6 DST and follows daylight saving time.
When did area code 406 start?+–
406 entered service in 1947 as one of the original 1947 North American area codes.
Is 406 a scam area code?+–
Scam and robocall traffic can use any North American code, 406 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 406 number, and report anything suspicious.
Can I get a 406 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 406 number regardless of where you physically live.