Phone numbers in Ridgewood, New Jersey
Ridgewood has 30 phone prefixes in area codes 201, 551.
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 17%
- Local phone company 30%
- Internet / business phone carrier 50%
- Phone company 3%
Every prefix in Ridgewood
Search the first six digits of a number in this list. If it's here, the number started in Ridgewood with the carrier shown. If it isn't, check the New Jersey page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 201-251 | Verizon (local phone) | Local phone company | – |
| 201-301 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 201-345 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 201-389 | Teleport Communications America | Internet / business phone carrier | – |
| 201-444 | Verizon (local phone) | Local phone company | – |
| 201-445 | Verizon (local phone) | Local phone company | – |
| 201-447 | Verizon (local phone) | Local phone company | – |
| 201-493 | Verizon (local phone) | Local phone company | – |
| 201-612 | Verizon (local phone) | Local phone company | – |
| 201-632 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 201-639 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 201-652 | Verizon (local phone) | Local phone company | – |
| 201-670 | Verizon (local phone) | Local phone company | – |
| 201-689 | Verizon (local phone) | Local phone company | – |
| 201-701 | Onvoy | Internet / business phone carrier | – |
| 201-857 | Csc Voice | Internet / business phone carrier | 2001 |
| 201-879 | Cablevision Lightpath | Internet / business phone carrier | 2012 |
| 201-882 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 201-925 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 201-972 | Monmouth Telephone And Telegraph | Phone company | 2001 |
| 551-276 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 551-284 | Onvoy | Internet / business phone carrier | 2018 |
| 551-305 | Cablevision Lightpath | Internet / business phone carrier | 2019 |
| 551-329 | Commio | Internet / business phone carrier | 2021 |
| 551-370 | T-Mobile (including Sprint) | Mobile carrier | 2019 |
| 551-386 | AT&T Mobility | Mobile carrier | 2023 |
| 551-410 | Onvoy | Internet / business phone carrier | 2024 |
| 551-502 | AT&T Mobility | Mobile carrier | 2017 |
| 551-733 | TON80 Communications | Internet / business phone carrier | 2022 |
| 551-815 | Onvoy | Internet / business phone carrier | 2021 |
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.