Phone numbers in Madison, New Jersey
Madison has 31 phone prefixes in area codes 862, 973.
Biggest holders: Verizon (local phone), Onvoy, MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 6%
- Local phone company 48%
- Internet / business phone carrier 42%
- Phone company 3%
Every prefix in Madison
Search the first six digits of a number in this list. If it's here, the number started in Madison with the carrier shown. If it isn't, check the New Jersey page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 862-204 | MetroPCS (T-Mobile) | Mobile carrier | 2002 |
| 862-341 | AT&T Mobility | Mobile carrier | 2019 |
| 862-431 | Onvoy | Internet / business phone carrier | 2023 |
| 862-433 | Onvoy | Internet / business phone carrier | 2021 |
| 862-465 | Cablevision Lightpath | Internet / business phone carrier | 2017 |
| 862-492 | Onvoy | Internet / business phone carrier | 2026 |
| 973-210 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 973-236 | Verizon (local phone) | Local phone company | – |
| 973-245 | Verizon (local phone) | Local phone company | – |
| 973-261 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 973-264 | AT&T (local phone) | Local phone company | – |
| 973-295 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 973-301 | Verizon (local phone) | Local phone company | – |
| 973-307 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 973-360 | Verizon (local phone) | Local phone company | – |
| 973-377 | Verizon (local phone) | Local phone company | – |
| 973-408 | Verizon (local phone) | Local phone company | – |
| 973-410 | Verizon (local phone) | Local phone company | – |
| 973-437 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 973-443 | Verizon (local phone) | Local phone company | – |
| 973-514 | Verizon (local phone) | Local phone company | – |
| 973-520 | Monmouth Telephone And Telegraph | Phone company | – |
| 973-549 | Teleport Communications America | Internet / business phone carrier | – |
| 973-593 | Verizon (local phone) | Local phone company | – |
| 973-660 | Verizon (local phone) | Local phone company | – |
| 973-765 | Verizon (local phone) | Local phone company | – |
| 973-805 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 973-822 | Verizon (local phone) | Local phone company | – |
| 973-845 | Cablevision Lightpath | Internet / business phone carrier | – |
| 973-937 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 973-966 | Verizon (local phone) | Local phone company | – |
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.