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Get a local business phone number in Bonne Terre, MO

Bonne Terre's area code, prefixes and carriers from NANPA records, and how to put a Bonne Terre number in front of your customers.

Area code
573
Exchanges
4NANPA-assigned
Carriers
4
Population
6,487Census 2024 est.

What area code is Bonne Terre, MO?

Bonne Terre, in St. Francois County, Missouri, had a Census-estimated population of 6,487 in July 2024. All 4 exchanges NANPA lists for its rate center are in area code 573. 573 is part of an overlay with 235, so a new local number in Bonne Terre may carry any of those codes depending on which have numbers available. Bonne Terre 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.

Area codes with exchanges in Bonne Terre, MO
Area codeExchanges hereShareIn service sinceOverlay withTime zone
5734100%1996235Central

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Phone carriers in Bonne Terre

4 carriers hold the 4 exchanges assigned to Bonne Terre's rate center. Southwestern Bell has the most, with 1. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

Carriers holding exchanges in Bonne Terre, MO
Carrier (NANPA operating company)ExchangesShare
Southwestern Bell125%
AT&T Enterprises, LLC125%
Teleport Communications America, LLC - Mo125%
Onvoy Spectrum, LLC125%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Local prefixes for Bonne Terre

These are the central office codes NANPA records for Bonne Terre. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2011. 2 of the 4 were assigned in 2020 or later.

Prefixes assigned in Bonne Terre, MO
Area codePrefixes (NXX)
573358, 534, 630, 980

Source: NANPA utilized central office code file.

When Bonne Terre's exchanges were assigned

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

Bonne Terre, MO: exchanges by decade assigned
Decade assignedExchangesShare
2010s133%
2020s267%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

How local numbers work in Bonne Terre

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

Keeping an existing Bonne Terre 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 Bonne Terre

Bonne Terre 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).

Selected industries in the Farmington, MO micropolitan area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants531,06920.2
Full-service restaurants4392921.6
Physician practices3940110.3
Agencies providing services for the elderly and persons with disabilities3337911.5
Insurance agencies and brokerages321203.8
Child day care services282308.2
Plumbing, heating and air-conditioning contractors2740014.8
Home health care agencies252359.4

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

Business phone service in Bonne Terre

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

Porting a number you already use in Bonne Terre 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 13-person team is the benchmark here, the rounded average establishment size in the Farmington, MO micropolitan area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $390.00 a month and Ooma Office Pro $324.35. Callata comes to $259.00 a month for 13 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for a 13-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$259.00$3,108.00
Quo (Starter)$19.00 per user$247.00$2,964.00
Nextiva (Core)$23.00 per user$299.00$3,588.00
Ooma (Office Pro)$24.95 per user$324.35$3,892.20
Dialpad (Standard)$27.00 per user$351.00$4,212.00
RingCentral (RingEX Core)$30.00 per user$390.00$4,680.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Frequently asked questions

What area code is Bonne Terre, MO?

573. All exchanges NANPA lists for Bonne Terre are in 573.

How many phone companies have exchanges in Bonne Terre?

4, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Bonne Terre business number?

Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.

How much is a business phone line in Bonne Terre?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 13 users come to $259.00 a month. For comparison, 13 users on RingCentral RingEX Core list at $390.00 a month (checked September 28, 2026).