CallataGuidesGet a local business phone number in Bismarck, MO
Bismarck's area code, prefixes and carriers from NANPA records, and how to put a Bismarck number in front of your customers.
- Area code
- 573
- Exchanges
- 2NANPA-assigned
- Carriers
- 2
- Population
- 1,222Census 2024 est.
What area code is Bismarck, MO?
With 1,222 residents in the Census 2024 estimate, Bismarck sits in St. Francois County, Missouri. All 2 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 Bismarck may carry any of those codes depending on which have numbers available. Bismarck 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 code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 573 | 2 | 100% | 1996 | 235 | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds Bismarck phone exchanges
2 carriers hold the 2 exchanges assigned to Bismarck's rate center. Southwestern Bell has the most, with 1. 2 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Bismarck can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Southwestern Bell | 1 | 50% |
| AT&T Enterprises, LLC | 1 | 50% |
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 Bismarck
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Bismarck. The earliest assignment date recorded in the file for these codes is 2009. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 573 | 734, 955 |
Source: NANPA utilized central office code file.
Rate centers and local calling in Bismarck
NANPA ties every exchange to a rate center. For Bismarck that is BISMARCK, so a number from one of these exchanges reads as local to people in and around Bismarck.
If your business already has a Bismarck number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Who does business near Bismarck
Bismarck 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).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 53 | 1,069 | 20.2 |
| Full-service restaurants | 43 | 929 | 21.6 |
| Physician practices | 39 | 401 | 10.3 |
| Agencies providing services for the elderly and persons with disabilities | 33 | 379 | 11.5 |
| Insurance agencies and brokerages | 32 | 120 | 3.8 |
| Child day care services | 28 | 230 | 8.2 |
| Plumbing, heating and air-conditioning contractors | 27 | 400 | 14.8 |
| Home health care agencies | 25 | 235 | 9.4 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Bismarck business line
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
If you already have a number in Bismarck, 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Farmington, MO micropolitan area, 13 users on RingCentral RingEX Core come to $390.00 a month and on Ooma Office Pro $324.35, at month-to-month list prices checked September 28, 2026. On Callata the same 13 people cost $259.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per 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 Bismarck, MO?
573. All exchanges NANPA lists for Bismarck are in 573.
How many phone companies have exchanges in Bismarck?
2, holding 2 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Bismarck 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 Bismarck?
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).