Phone numbers in Hammonton, New Jersey
Hammonton has 12 phone prefixes in area codes 609, 640.
Biggest holders: T-Mobile (including Sprint), Verizon (local phone), Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 25%
- Internet / business phone carrier 50%
Every prefix in Hammonton
Search the first six digits of a number in this list. If it's here, the number started in Hammonton with the carrier shown. If it isn't, check the New Jersey page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 609-270 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 609-481 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 609-547 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 609-561 | Verizon (local phone) | Local phone company | – |
| 609-567 | Verizon (local phone) | Local phone company | – |
| 609-666 | T-Mobile (including Sprint) | Mobile carrier | – |
| 609-704 | Verizon (local phone) | Local phone company | – |
| 609-878 | Bandwidth | Internet / business phone carrier | 2002 |
| 609-956 | Teleport Communications America | Internet / business phone carrier | 2019 |
| 640-209 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 640-239 | Nuso | Internet / business phone carrier | 2022 |
| 640-273 | Onvoy | Internet / business phone carrier | 2025 |
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.