Phone numbers in Dunlap, Indiana
Dunlap has 4 phone prefixes in area code 574.
Biggest holders: Frontier, TON80 Communications, Windstream (PAETEC). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 50%
- Internet / business phone carrier 50%
Every prefix in Dunlap
Search the first six digits of a number in this list. If it's here, the number started in Dunlap with the carrier shown. If it isn't, check the Indiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 574-746 | TON80 Communications | Internet / business phone carrier | 2022 |
| 574-830 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 574-875 | Frontier | Local phone company | – |
| 574-891 | Frontier | Local 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.