Phone numbers in St. Joseph, Missouri
St. Joseph has 41 phone prefixes in area codes 816, 975.
Biggest holders: AT&T (local phone), T-Mobile (including Sprint), Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 41%
- Local phone company 34%
- Internet / business phone carrier 22%
- Phone company 2%
Every prefix in St. Joseph
Search the first six digits of a number in this list. If it's here, the number started in St. Joseph with the carrier shown. If it isn't, check the Missouri page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 816-205 | Verizon Wireless | Mobile carrier | – |
| 816-232 | AT&T (local phone) | Local phone company | – |
| 816-233 | AT&T (local phone) | Local phone company | – |
| 816-236 | AT&T (local phone) | Local phone company | – |
| 816-238 | AT&T (local phone) | Local phone company | – |
| 816-244 | AT&T Mobility | Mobile carrier | 2003 |
| 816-248 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 816-259 | Csc Voice | Internet / business phone carrier | 2013 |
| 816-261 | AT&T Mobility | Mobile carrier | – |
| 816-262 | AT&T Mobility | Mobile carrier | – |
| 816-271 | AT&T (local phone) | Local phone company | – |
| 816-273 | AT&T Mobility | Mobile carrier | 2002 |
| 816-279 | AT&T (local phone) | Local phone company | – |
| 816-294 | T-Mobile (including Sprint) | Mobile carrier | – |
| 816-341 | Verizon Wireless | Mobile carrier | – |
| 816-344 | Windstream (PAETEC) | Internet / business phone carrier | 2006 |
| 816-351 | Verizon Wireless | Mobile carrier | – |
| 816-364 | AT&T (local phone) | Local phone company | – |
| 816-383 | AT&T (local phone) | Local phone company | – |
| 816-385 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 816-387 | AT&T (local phone) | Local phone company | – |
| 816-390 | AT&T (local phone) | Local phone company | – |
| 816-396 | AT&T (local phone) | Local phone company | – |
| 816-538 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 816-557 | Level 3 (Lumen) | Internet / business phone carrier | 2022 |
| 816-558 | Teleport Communications America | Internet / business phone carrier | 2007 |
| 816-596 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 816-617 | T-Mobile (including Sprint) | Mobile carrier | – |
| 816-639 | Fractel | Internet / business phone carrier | 2019 |
| 816-646 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 816-671 | AT&T (local phone) | Local phone company | – |
| 816-676 | AT&T (local phone) | Local phone company | – |
| 816-689 | Csc Voice | Internet / business phone carrier | – |
| 816-722 | Verizon Wireless | Mobile carrier | 2019 |
| 816-749 | Csc Voice | Internet / business phone carrier | – |
| 816-752 | AT&T Mobility | Mobile carrier | – |
| 816-901 | AT&T (local phone) | Local phone company | – |
| 816-937 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 816-951 | Verizon Wireless | Mobile carrier | 2024 |
| 816-953 | FIVE9 | Phone company | 2024 |
| 975-217 | Onvoy | Internet / business phone carrier | 2026 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.