Phone numbers in Lamar, Missouri
Lamar has 8 phone prefixes in area code 417.
Biggest holders: Level 3 (Lumen), AT&T (local phone), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 38%
- Local phone company 25%
- Internet / business phone carrier 38%
Every prefix in Lamar
Search the first six digits of a number in this list. If it's here, the number started in Lamar with the carrier shown. If it isn't, check the Missouri page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 417-214 | AT&T Mobility | Mobile carrier | 2001 |
| 417-262 | UScellular | Mobile carrier | 2002 |
| 417-279 | Onvoy | Internet / business phone carrier | – |
| 417-295 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 417-478 | Verizon Wireless | Mobile carrier | 2024 |
| 417-660 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 417-681 | AT&T (local phone) | Local phone company | – |
| 417-682 | AT&T (local phone) | 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.