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Get a local business phone number in Hallsville, MO

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

Area code
573
Exchanges
3NANPA-assigned
Carriers
2
Population
1,766Census 2024 est.

Hallsville area codes

Hallsville, in Boone County, Missouri, had a Census-estimated population of 1,766 in July 2024. All 3 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 Hallsville may carry any of those codes depending on which have numbers available. Hallsville 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 Hallsville, MO
Area codeExchanges hereShareIn service sinceOverlay withTime zone
5733100%1996235Central

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

Hallsville exchanges by carrier

2 carriers hold the 3 exchanges assigned to Hallsville's rate center. Onvoy, LLC - Mo has the most, with 2. 3 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 Hallsville, MO
Carrier (NANPA operating company)ExchangesShare
Onvoy, LLC - Mo267%
Brightspeed of Missouri, LLC133%

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.

Hallsville phone prefixes

These are the central office codes NANPA records for Hallsville. A caller seeing one of them recognizes a local number. None were assigned in 2020 or later.

Prefixes assigned in Hallsville, MO
Area codePrefixes (NXX)
573296, 696, 949

Source: NANPA utilized central office code file.

What makes a number local to Hallsville

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

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

Businesses around Hallsville

Hallsville is part of the Columbia, MO metro area, home to 219,000 people in 2024. County Business Patterns counted 5,312 business establishments in the Columbia, MO metro area in 2023, employing 91,660 people. The largest sectors by establishment count are health care and social assistance (821), retail trade (669), and construction (606).

Selected industries in the Columbia, MO metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants1754,23424.2
Full-service restaurants1533,87825.3
Physician practices1491,50910.1
Insurance agencies and brokerages1135064.5
Offices of real estate agents and brokers1083673.4
Law offices1044644.5
Residential remodelers943403.6
Landscaping services935125.5

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

A Hallsville 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 Hallsville, 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 17-person team is the benchmark here, the rounded average establishment size in the Columbia, MO metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $510.00 a month and Ooma Office Pro $424.15. On Callata the same 17 people cost $339.00 a month, less than either per-seat plan.

Monthly list price for a 17-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$339.00$4,068.00
Quo (Starter)$19.00 per user$323.00$3,876.00
Nextiva (Core)$23.00 per user$391.00$4,692.00
Ooma (Office Pro)$24.95 per user$424.15$5,089.80
Dialpad (Standard)$27.00 per user$459.00$5,508.00
RingCentral (RingEX Core)$30.00 per user$510.00$6,120.00

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 Hallsville, MO?

573. All exchanges NANPA lists for Hallsville are in 573.

How many phone companies have exchanges in Hallsville?

2, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Hallsville 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 Hallsville?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 17 users come to $339.00 a month. For comparison, 17 users on RingCentral RingEX Core list at $510.00 a month (checked September 28, 2026).