Phone numbers in Hamlin, Texas
Hamlin has 4 phone prefixes in area code 325.
Biggest holders: Onvoy, Csc Voice, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 25%
- Internet / business phone carrier 50%
- Phone company 25%
Every prefix in Hamlin
Search the first six digits of a number in this list. If it's here, the number started in Hamlin with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 325-335 | Onvoy | Internet / business phone carrier | 2018 |
| 325-359 | Csc Voice | Internet / business phone carrier | 2024 |
| 325-576 | AT&T (local phone) | Local phone company | – |
| 325-844 | Texas Communications | Phone company | – |
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.