Phone numbers in St. Peters, Missouri
St. Peters has 15 phone prefixes in area code 636.
Biggest holders: Brightspeed Of Missouri, Verizon Wireless, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 33%
- Internet / business phone carrier 33%
Every prefix in St. Peters
Search the first six digits of a number in this list. If it's here, the number started in St. Peters with the carrier shown. If it isn't, check the Missouri page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 636-248 | Verizon Wireless | Mobile carrier | – |
| 636-278 | Brightspeed Of Missouri | Local phone company | – |
| 636-279 | Brightspeed Of Missouri | Local phone company | – |
| 636-348 | Fractel | Internet / business phone carrier | 2020 |
| 636-378 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 636-387 | Charter / Spectrum | Internet / business phone carrier | 2001 |
| 636-397 | Brightspeed Of Missouri | Local phone company | – |
| 636-427 | AT&T Mobility | Mobile carrier | 2025 |
| 636-485 | Verizon Wireless | Mobile carrier | – |
| 636-577 | AT&T Mobility | Mobile carrier | 2002 |
| 636-626 | Onvoy | Internet / business phone carrier | – |
| 636-697 | Teleport Communications America | Internet / business phone carrier | – |
| 636-706 | CenturyLink / Lumen | Local phone company | 2013 |
| 636-875 | Windstream (PAETEC) | Internet / business phone carrier | 2007 |
| 636-970 | Brightspeed Of Missouri | Local phone company | – |
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.