Get a local business phone number in Farmington, MO

What area code is Farmington, MO?

Farmington city is a Census place in St. Francois County, Missouri, with an estimated 19,165 residents in 2024. NANPA lists 18 exchanges for its rate center across 2 area codes; 573 has the most (16, 89%). 573 is part of an overlay with 235, so a new local number in Farmington may carry any of those codes depending on which have numbers available. Farmington is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 573 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Farmington phone exchanges

5 carriers hold the 18 exchanges assigned to Farmington's rate center. New Cingular Wireless PCS, LLC - Il has the most, with 9. 16 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.

Farmington phone prefixes

These are the central office codes NANPA records for Farmington. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2003. 4 of the 18 were assigned in 2020 or later.

When Farmington's exchanges were assigned

The table groups Farmington's exchanges by the decade NANPA recorded them as assigned.

How local numbers work in Farmington

NANPA ties every exchange to a rate center. For Farmington that is FARMINGTON, so a number from one of these exchanges reads as local to people in and around Farmington.

Keeping an existing Farmington number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 573 when you pick it.

Who does business near Farmington

Farmington is part of the Farmington, MO micropolitan area, home to 67,503 people in 2024. County Business Patterns counted 1,438 business establishments in the Farmington, MO micropolitan area in 2023, employing 17,990 people. The largest sectors by establishment count are health care and social assistance (256), retail trade (225), and other services (except public administration) (160).

Setting up a Farmington business line

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 Farmington 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.

The comparison below uses 13 users, the rounded average establishment size in the Farmington, MO micropolitan area. At list prices checked September 28, 2026, that is $324.35 a month on Ooma Office Pro and $390.00 on RingCentral RingEX Core. Callata comes to $259.00 a month for 13 users ($99 a month with 5 users included, then $20 per additional user), below both.