Phone numbers in O'Neill, Nebraska
O'Neill has 5 phone prefixes in area codes 402, 531.
Biggest holders: Verizon Wireless, CenturyLink / Lumen, UScellular. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 60%
- Local phone company 20%
- Internet / business phone carrier 20%
Every prefix in O'Neill
Search the first six digits of a number in this list. If it's here, the number started in O'Neill with the carrier shown. If it isn't, check the Nebraska page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 402-336 | CenturyLink / Lumen | Local phone company | – |
| 402-340 | Verizon Wireless | Mobile carrier | – |
| 402-961 | Verizon Wireless | Mobile carrier | 2008 |
| 531-271 | UScellular | Mobile carrier | 2021 |
| 531-888 | Telnyx | Internet / business phone carrier | 2017 |
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.