Phone numbers in Crosby, Texas
Crosby has 7 phone prefixes in area codes 281, 346.
Biggest holders: Onvoy, Frontier, Grande Communications Networks. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 29%
- Internet / business phone carrier 57%
- Phone company 14%
Every prefix in Crosby
Search the first six digits of a number in this list. If it's here, the number started in Crosby with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 281-328 | Frontier | Local phone company | – |
| 281-462 | Frontier | Local phone company | – |
| 281-666 | Grande Communications Networks | Phone company | – |
| 281-699 | Onvoy | Internet / business phone carrier | 2021 |
| 346-344 | Onvoy | Internet / business phone carrier | – |
| 346-480 | Onvoy | Internet / business phone carrier | 2021 |
| 346-682 | Onvoy | Internet / business phone carrier | 2024 |
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.