Phone numbers in Dallas, Pennsylvania
Dallas has 7 phone prefixes in area code 570.
Biggest holders: Commonwealth Telephone, Core Communications, North Penn Long Distance. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 71%
- Internet / business phone carrier 14%
- Phone company 14%
Every prefix in Dallas
Search the first six digits of a number in this list. If it's here, the number started in Dallas with the carrier shown. If it isn't, check the Pennsylvania page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 570-255 | Commonwealth Telephone | Local phone company | 2001 |
| 570-310 | Core Communications | Internet / business phone carrier | 2009 |
| 570-572 | North Penn Long Distance | Phone company | 2015 |
| 570-631 | Commonwealth Telephone | Local phone company | – |
| 570-674 | Commonwealth Telephone | Local phone company | – |
| 570-675 | Commonwealth Telephone | Local phone company | – |
| 570-761 | Commonwealth Telephone | Local phone company | 2012 |
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.