406 Area Code
The 406 area code serves Anaconda, Belgrade, Billings, Bozeman, Butte in United States. Learn the cities and counties covered, the time zone, dialing format, and how to get a local 406 business number.
Frequently asked questions
What area code is 406?+
406 is a North American Numbering Plan (NANP) area code in United States, primarily covering Anaconda, Belgrade, Billings, Bozeman, Butte.
Where is the 406 area code located?+
The 406 area code is located in United States. It operates on Mountain Time (MT).
How do you dial the 406 area code from abroad?+
Dial your country's international exit code, then +1 406 followed by the 7-digit local number. From inside the US/Canada, dial 1 406 XXX-XXXX.
Can I get a 406 phone number for my business?+
Yes. AstraQom provisions local 406 DID numbers for SIP trunking, hosted PBX, contact centers and toll-free porting — usually within minutes, with no long-term contract.
Get a local 406 number for your business
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AstraQom is an independent global telecom carrier serving 117 countries. We provision local 406 DID numbers, SIP trunks, hosted PBX, contact-center routing and SD-WAN — all on Tier-1 carrier infrastructure with no grey termination and 24/7 multilingual support.