Phone numbers in Hopatcong, New Jersey
Hopatcong has 14 phone prefixes in area codes 862, 973.
Biggest holders: Verizon (local phone), T-Mobile (including Sprint), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 14%
- Local phone company 29%
- Internet / business phone carrier 50%
- Phone company 7%
Every prefix in Hopatcong
Search the first six digits of a number in this list. If it's here, the number started in Hopatcong with the carrier shown. If it isn't, check the New Jersey page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 862-243 | MCImetro (Verizon Business) | Internet / business phone carrier | 2009 |
| 862-299 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 862-391 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 862-425 | Cablevision Lightpath | Internet / business phone carrier | 2023 |
| 862-462 | Onvoy | Internet / business phone carrier | 2021 |
| 862-473 | Onvoy | Internet / business phone carrier | 2026 |
| 862-803 | Csc Voice | Internet / business phone carrier | 2013 |
| 973-234 | Monmouth Telephone And Telegraph | Phone company | 2001 |
| 973-288 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 973-398 | Verizon (local phone) | Local phone company | – |
| 973-601 | Verizon (local phone) | Local phone company | – |
| 973-663 | Verizon (local phone) | Local phone company | – |
| 973-770 | Verizon (local phone) | Local phone company | – |
| 973-810 | Teleport Communications America | Internet / business phone 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.