Phone numbers in Sheldon, Texas
Sheldon has 9 phone prefixes in area codes 281, 346, 832.
Biggest holders: Onvoy, Level 3 (Lumen), AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 11%
- Internet / business phone carrier 89%
Every prefix in Sheldon
Search the first six digits of a number in this list. If it's here, the number started in Sheldon with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 281-215 | Onvoy | Internet / business phone carrier | – |
| 281-456 | AT&T (local phone) | Local phone company | – |
| 281-609 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 281-783 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 281-962 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 346-258 | Onvoy | Internet / business phone carrier | 2016 |
| 346-362 | Onvoy | Internet / business phone carrier | 2018 |
| 346-484 | Onvoy | Internet / business phone carrier | 2021 |
| 832-734 | Tpx Communications | 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.