Get a local business phone number in Sidney, MT

Sidney area codes

Sidney city is a Census place in Richland County, Montana, with an estimated 6,031 residents in 2024. All 9 exchanges NANPA lists for its rate center are in area code 406. Sidney 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.

Sidney exchanges by carrier

5 carriers hold the 9 exchanges assigned to Sidney's rate center. Cellco Partnership d/b/a Verizon Wireless - MT has the most, with 3. 7 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Exchanges (NPA-NXX) assigned in Sidney

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Sidney's rate center (SIDNEY). The earliest assignment date recorded in the file for these codes is 2003. None were assigned in 2020 or later.

Rate centers and local calling in Sidney

What a caller sees as "local" is the area code plus prefix. In Sidney, those come from the SIDNEY rate center, as recorded by NANPA.

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 Sidney

Sidney is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 42,566 business establishments in Montana in 2023, employing 409,312 people. The largest sectors by establishment count are construction (6,766), retail trade (4,706), and health care and social assistance (4,488).

A Sidney 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.

Porting a number you already use in Sidney is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

A 10-person team is the benchmark here, the rounded average establishment size in Montana. 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. Callata comes to $199.00 a month for 10 users ($99 a month with 5 users included, then $20 per additional user), below both.