Get a local business phone number in Helena, MT

Helena area codes

Helena city is a Census place in Lewis and Clark County, Montana, with an estimated 34,729 residents in 2024. All 38 exchanges NANPA lists for its rate center are in area code 406. Helena is in the Mountain time zone.

According to NANPA's dialing-plan data, local calls within 406 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Helena exchanges by carrier

11 carriers hold the 38 exchanges assigned to Helena's rate center. Qwest Corporation has the most, with 14. 27 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Helena can come from any of these blocks; once it is yours, porting lets it move between providers.

Helena phone prefixes

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Helena. The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.

When Helena's exchanges were assigned

Assignment dates show when each block of Helena numbers was added to the local supply.

What makes a number local to Helena

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Helena's numbers are rated to the HELENA rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Helena number.

New local numbers are drawn from carrier inventory, so the exact 406 numbers available change over time; porting an existing number is free.

Businesses around Helena

Helena is part of the Helena, MT metro area, home to 96,735 people in 2024. County Business Patterns counted 3,152 business establishments in the Helena, MT metro area in 2023, employing 30,338 people. The largest sectors by establishment count are construction (510), health care and social assistance (387), and professional, scientific, and technical services (343).

A Helena number on Callata

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

If you already have a number in Helena, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

A 10-person team is the benchmark here, the rounded average establishment size in the Helena, MT metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $300.00 a month and Ooma Office Pro $249.50. On Callata the same 10 people cost $199.00 a month, less than either per-seat plan.