Phone numbers in Oberlin, Ohio
Oberlin has 7 phone prefixes in area code 440.
Biggest holders: Frontier, T-Mobile (including Sprint), Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 29%
- Local phone company 43%
- Internet / business phone carrier 29%
Every prefix in Oberlin
Search the first six digits of a number in this list. If it's here, the number started in Oberlin with the carrier shown. If it isn't, check the Ohio page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 440-574 | T-Mobile (including Sprint) | Mobile carrier | – |
| 440-707 | Level 3 (Lumen) | Internet / business phone carrier | 2006 |
| 440-751 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 440-774 | Frontier | Local phone company | – |
| 440-775 | Frontier | Local phone company | – |
| 440-776 | Frontier | Local phone company | – |
| 440-935 | Verizon Wireless | Mobile 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.