Phone numbers in Cassville, Missouri
Cassville has 6 phone prefixes in area code 417.
Biggest holders: Level 3 (Lumen), Brightspeed Of Missouri, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 17%
- Local phone company 50%
- Internet / business phone carrier 33%
Every prefix in Cassville
Search the first six digits of a number in this list. If it's here, the number started in Cassville with the carrier shown. If it isn't, check the Missouri page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 417-342 | Verizon Wireless | Mobile carrier | 2004 |
| 417-665 | CenturyLink / Lumen | Local phone company | – |
| 417-671 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 417-846 | Brightspeed Of Missouri | Local phone company | – |
| 417-847 | Brightspeed Of Missouri | Local phone company | – |
| 417-896 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
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.