Phone numbers in Seneca, Kansas
Seneca has 5 phone prefixes in area code 785.
Biggest holders: Verizon Wireless, Rainbow Communications, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 20%
- Internet / business phone carrier 40%
- Phone company 20%
Every prefix in Seneca
Search the first six digits of a number in this list. If it's here, the number started in Seneca with the carrier shown. If it isn't, check the Kansas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 785-294 | Verizon Wireless | Mobile carrier | 2003 |
| 785-334 | Rainbow Communications | Phone company | 2006 |
| 785-336 | AT&T (local phone) | Local phone company | – |
| 785-369 | Bandwidth | Internet / business phone carrier | 2017 |
| 785-886 | Onvoy | Internet / business phone carrier | 2020 |
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.