Phone numbers in Columbia, Pennsylvania
Columbia has 20 phone prefixes in area codes 223, 717.
Biggest holders: T-Mobile (including Sprint), Verizon Wireless, Brightspeed Of Pennsylvania. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 75%
- Local phone company 10%
- Internet / business phone carrier 15%
Every prefix in Columbia
Search the first six digits of a number in this list. If it's here, the number started in Columbia with the carrier shown. If it isn't, check the Pennsylvania page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 223-207 | Onvoy | Internet / business phone carrier | 2018 |
| 223-246 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 223-278 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 223-281 | Bandwidth | Internet / business phone carrier | 2022 |
| 223-289 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 223-340 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 223-361 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 223-375 | Verizon Wireless | Mobile carrier | 2025 |
| 223-378 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 223-381 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 223-385 | T-Mobile (including Sprint) | Mobile carrier | – |
| 223-667 | Fractel | Internet / business phone carrier | 2021 |
| 717-342 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 717-415 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 717-449 | Verizon Wireless | Mobile carrier | 2002 |
| 717-681 | Brightspeed Of Pennsylvania | Local phone company | – |
| 717-684 | Brightspeed Of Pennsylvania | Local phone company | – |
| 717-693 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 717-719 | Verizon Wireless | Mobile carrier | 2013 |
| 717-992 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
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.