Phone numbers in Highlands, Texas
Highlands has 9 phone prefixes in area codes 281, 346, 832.
Biggest holders: Frontier, Onvoy, MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 22%
- Internet / business phone carrier 56%
- Phone company 22%
Every prefix in Highlands
Search the first six digits of a number in this list. If it's here, the number started in Highlands with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 281-426 | Frontier | Local phone company | – |
| 281-502 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 281-688 | Grande Communications Networks | Phone company | – |
| 281-843 | Frontier | Local phone company | – |
| 346-466 | Onvoy | Internet / business phone carrier | 2020 |
| 346-663 | Onvoy | Internet / business phone carrier | 2022 |
| 346-750 | Commio | Internet / business phone carrier | 2023 |
| 346-838 | Shelcomm | Phone company | 2024 |
| 832-838 | 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.