Phone numbers in St. Thomas, Pennsylvania
St. Thomas has 4 phone prefixes in area codes 223, 717.
Biggest holders: TON80 Communications, Brightspeed Of Pennsylvania, Comcast. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 25%
- Internet / business phone carrier 75%
Every prefix in St. Thomas
Search the first six digits of a number in this list. If it's here, the number started in St. Thomas with the carrier shown. If it isn't, check the Pennsylvania page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 223-543 | TON80 Communications | Internet / business phone carrier | 2022 |
| 717-369 | Brightspeed Of Pennsylvania | Local phone company | – |
| 717-595 | Comcast | Internet / business phone carrier | 2006 |
| 717-748 | Core Communications | Internet / business phone carrier | 2009 |
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.