Phone numbers in Sheffield, Pennsylvania
Sheffield has 3 phone prefixes in area code 814.
Biggest holders: Windstream Pennsylvania, Core Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 67%
- Internet / business phone carrier 33%
Every prefix in Sheffield
Search the first six digits of a number in this list. If it's here, the number started in Sheffield with the carrier shown. If it isn't, check the Pennsylvania page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 814-727 | Core Communications | Internet / business phone carrier | 2009 |
| 814-851 | Windstream Pennsylvania | Local phone company | 2016 |
| 814-968 | Windstream Pennsylvania | 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.