Phone numbers in El Dorado, Kansas
El Dorado has 17 phone prefixes in area code 316.
Biggest holders: T-Mobile (including Sprint), AT&T (local phone), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 35%
- Local phone company 24%
- Internet / business phone carrier 41%
Every prefix in El Dorado
Search the first six digits of a number in this list. If it's here, the number started in El Dorado with the carrier shown. If it isn't, check the Kansas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 316-229 | Onvoy | Internet / business phone carrier | 2023 |
| 316-244 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 316-251 | Verizon Wireless | Mobile carrier | 2007 |
| 316-313 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 316-320 | AT&T (local phone) | Local phone company | – |
| 316-321 | AT&T (local phone) | Local phone company | – |
| 316-322 | AT&T (local phone) | Local phone company | – |
| 316-323 | AT&T (local phone) | Local phone company | – |
| 316-377 | T-Mobile (including Sprint) | Mobile carrier | – |
| 316-389 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 316-402 | Onvoy | Internet / business phone carrier | 2021 |
| 316-435 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 316-452 | Verizon Wireless | Mobile carrier | 2001 |
| 316-600 | Peerless Network Of Kansas | Internet / business phone carrier | 2016 |
| 316-621 | Windstream (PAETEC) | Internet / business phone carrier | 2002 |
| 316-874 | TON80 Communications | Internet / business phone carrier | 2022 |
| 316-889 | Level 3 (Lumen) | Internet / business phone carrier | – |
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.