Phone numbers in Ottawa, Kansas
Ottawa has 11 phone prefixes in area code 785.
Biggest holders: T-Mobile (including Sprint), AT&T (local phone), UScellular. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 64%
- Local phone company 18%
- Internet / business phone carrier 18%
Every prefix in Ottawa
Search the first six digits of a number in this list. If it's here, the number started in Ottawa with the carrier shown. If it isn't, check the Kansas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 785-214 | T-Mobile (including Sprint) | Mobile carrier | – |
| 785-229 | AT&T (local phone) | Local phone company | – |
| 785-241 | UScellular | Mobile carrier | – |
| 785-242 | AT&T (local phone) | Local phone company | – |
| 785-248 | T-Mobile (including Sprint) | Mobile carrier | – |
| 785-418 | T-Mobile (including Sprint) | Mobile carrier | – |
| 785-521 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 785-591 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 785-682 | Onvoy | Internet / business phone carrier | 2024 |
| 785-800 | Fractel | Internet / business phone carrier | 2019 |
| 785-893 | Verizon Wireless | Mobile carrier | 2002 |
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.