Phone numbers in Collingswood, New Jersey
Collingswood has 21 phone prefixes in area codes 609, 856.
Biggest holders: T-Mobile (including Sprint), Verizon (local phone), Windstream (PAETEC). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 19%
- Internet / business phone carrier 43%
- Paging service 5%
Every prefix in Collingswood
Search the first six digits of a number in this list. If it's here, the number started in Collingswood with the carrier shown. If it isn't, check the New Jersey page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 609-332 | T-Mobile (including Sprint) | Mobile carrier | – |
| 609-792 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 856-240 | Teleport Communications America | Internet / business phone carrier | – |
| 856-425 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 856-465 | T-Mobile (including Sprint) | Mobile carrier | – |
| 856-477 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 856-495 | T-Mobile (including Sprint) | Mobile carrier | – |
| 856-559 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 856-577 | T-Mobile (including Sprint) | Mobile carrier | – |
| 856-607 | Onvoy | Internet / business phone carrier | 2001 |
| 856-671 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 856-709 | Onvoy | Internet / business phone carrier | 2026 |
| 856-752 | Spok | Paging service | – |
| 856-833 | Verizon (local phone) | Local phone company | – |
| 856-854 | Verizon (local phone) | Local phone company | – |
| 856-858 | Verizon (local phone) | Local phone company | – |
| 856-869 | Verizon (local phone) | Local phone company | – |
| 856-942 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 856-946 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 856-957 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 856-979 | T-Mobile (including Sprint) | Mobile carrier | – |
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.