Phone numbers in Hiram, Ohio
Hiram has 4 phone prefixes in area codes 234, 330.
Biggest holders: AT&T Mobility, Csc Voice, Windstream Western Reserve. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Local phone company 25%
- Internet / business phone carrier 25%
Every prefix in Hiram
Search the first six digits of a number in this list. If it's here, the number started in Hiram with the carrier shown. If it isn't, check the Ohio page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 234-267 | AT&T Mobility | Mobile carrier | 2020 |
| 234-416 | Csc Voice | Internet / business phone carrier | 2024 |
| 330-569 | Windstream Western Reserve | Local phone company | – |
| 330-977 | Verizon Wireless | Mobile carrier | 2004 |
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.