CallataGuidesGet a local business phone number in St. Joseph, MO
St. Joseph's area codes, prefixes and carriers from NANPA records, and how to put a St. Joseph number in front of your customers.
- Area code
- 816 / 975
- Exchanges
- 41NANPA-assigned
- Carriers
- 13
- Population
- 71,098Census 2024 est.
Area codes in St. Joseph
With 71,098 residents in the Census 2024 estimate, St. Joseph sits in Buchanan County, Missouri. NANPA lists 41 exchanges for its rate center across 2 area codes; 816 has the most (40, 98%). 816 is part of an overlay with 975, so a new local number in St. Joseph may carry any of those codes depending on which have numbers available. St. Joseph is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 816 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
St. Joseph exchanges by carrier
13 carriers hold the 41 exchanges assigned to St. Joseph's rate center. Southwestern Bell has the most, with 14. 32 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Southwestern Bell | 14 | 34% |
| Aerial Communications, INC. | 6 | 15% |
| Cellco Partnership d/b/a Verizon Wireless - Mo | 5 | 12% |
| New Cingular Wireless PCS, LLC - Il | 5 | 12% |
| CSC Voice, LLC | 3 | 7.3% |
| Paetec Itel, LLC | 1 | 2.4% |
| Mcimetro Access Transmission Services LLC - Mo | 1 | 2.4% |
| Level 3 Communications, LLC - Mo | 1 | 2.4% |
| Teleport Communications America, LLC - Mo | 1 | 2.4% |
| Metropcs, INC. | 1 | 2.4% |
| Fractel, LLC | 1 | 2.4% |
| Five9, INC. | 1 | 2.4% |
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.
Exchanges (NPA-NXX) assigned in St. Joseph
These are the central office codes NANPA records for St. Joseph. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 5 of the 41 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 816 | 205, 232, 233, 236, 238, 244, 248, 259, 261, 262, 271, 273, 279, 294, 341, 344, 351, 364, 383, 385, 387, 390, 396, 538, 557, 558, 596, 617, 639, 646, 671, 676, 689, 722, 749, 752, 901, 937, 951, 953 |
| 975 | 217 |
Source: NANPA utilized central office code file.
When St. Joseph's exchanges were assigned
The table groups St. Joseph's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 6 | 40% |
| 2010s | 4 | 27% |
| 2020s | 5 | 33% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in St. Joseph
NANPA ties every exchange to a rate center. For St. Joseph that is ST JOSEPH, so a number from one of these exchanges reads as local to people in and around St. Joseph.
New local numbers are drawn from carrier inventory, so the exact 816 numbers available change over time; porting an existing number is free.
Who does business near St. Joseph
St. Joseph is part of the St. Joseph, MO-KS metro area, home to 119,000 people in 2024. County Business Patterns counted 2,694 business establishments in the St. Joseph, MO-KS metro area in 2023, employing 49,125 people. The largest sectors by establishment count are retail trade (379), health care and social assistance (364), and other services (except public administration) (307).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 96 | 2,174 | 22.6 |
| Insurance agencies and brokerages | 73 | 462 | 6.3 |
| Physician practices | 72 | — | — |
| Full-service restaurants | 68 | 1,521 | 22.4 |
| Law offices | 46 | — | — |
| Landscaping services | 44 | 123 | 2.8 |
| General automotive repair shops | 42 | 183 | 4.4 |
| Plumbing, heating and air-conditioning contractors | 39 | 486 | 12.5 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in St. Joseph
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 St. Joseph 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in the St. Joseph, MO-KS metro area, 18 users on RingCentral RingEX Core come to $540.00 a month and on Ooma Office Pro $449.10, at month-to-month list prices checked September 28, 2026. Callata comes to $359.00 a month for 18 users ($99 a month with 5 users included, then $20 per additional user), below both.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $359.00 | $4,308.00 |
| Quo (Starter) | $19.00 per user | $342.00 | $4,104.00 |
| Nextiva (Core) | $23.00 per user | $414.00 | $4,968.00 |
| Ooma (Office Pro) | $24.95 per user | $449.10 | $5,389.20 |
| Dialpad (Standard) | $27.00 per user | $486.00 | $5,832.00 |
| RingCentral (RingEX Core) | $30.00 per user | $540.00 | $6,480.00 |
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 St. Joseph, MO?
St. Joseph has exchanges in 816 and 975; 816 has the most.
How many phone companies have exchanges in St. Joseph?
13, holding 41 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing St. Joseph 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 St. Joseph?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 18 users come to $359.00 a month. For comparison, 18 users on RingCentral RingEX Core list at $540.00 a month (checked September 28, 2026).