Phone numbers in Caldwell, New Jersey
Caldwell has 61 phone prefixes in area codes 201, 862, 973.
Biggest holders: Verizon Wireless, T-Mobile (including Sprint), Verizon (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 51%
- Local phone company 25%
- Internet / business phone carrier 25%
Every prefix in Caldwell
Search the first six digits of a number in this list. If it's here, the number started in Caldwell with the carrier shown. If it isn't, check the New Jersey page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 201-247 | Verizon Wireless | Mobile carrier | – |
| 201-396 | Verizon Wireless | Mobile carrier | – |
| 201-452 | Verizon Wireless | Mobile carrier | – |
| 201-704 | Verizon Wireless | Mobile carrier | – |
| 201-953 | Verizon Wireless | Mobile carrier | – |
| 201-954 | T-Mobile (including Sprint) | Mobile carrier | – |
| 862-210 | Verizon Wireless | Mobile carrier | 2007 |
| 862-348 | Bandwidth | Internet / business phone carrier | 2020 |
| 862-386 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 862-399 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 862-451 | Verizon Wireless | Mobile carrier | 2024 |
| 862-505 | Verizon Wireless | Mobile carrier | 2012 |
| 862-529 | Fractel | Internet / business phone carrier | 2020 |
| 862-702 | Comcast | Internet / business phone carrier | – |
| 862-703 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 862-753 | TON80 Communications | Internet / business phone carrier | 2022 |
| 862-881 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 862-926 | Cablevision Lightpath | Internet / business phone carrier | 2006 |
| 862-999 | Cablevision Lightpath | Internet / business phone carrier | – |
| 973-226 | Verizon (local phone) | Local phone company | – |
| 973-227 | Verizon (local phone) | Local phone company | – |
| 973-228 | Verizon (local phone) | Local phone company | – |
| 973-244 | Verizon (local phone) | Local phone company | – |
| 973-276 | Verizon (local phone) | Local phone company | – |
| 973-287 | AT&T (local phone) | Local phone company | – |
| 973-296 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 973-303 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 973-364 | Verizon (local phone) | Local phone company | – |
| 973-390 | T-Mobile (including Sprint) | Mobile carrier | – |
| 973-396 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 973-403 | Verizon (local phone) | Local phone company | – |
| 973-417 | T-Mobile (including Sprint) | Mobile carrier | – |
| 973-439 | Verizon (local phone) | Local phone company | – |
| 973-461 | Teleport Communications America | Internet / business phone carrier | – |
| 973-464 | Verizon Wireless | Mobile carrier | – |
| 973-487 | Verizon (local phone) | Local phone company | – |
| 973-521 | Peerless Network Of New Jersey | Internet / business phone carrier | 2011 |
| 973-567 | Verizon Wireless | Mobile carrier | 2010 |
| 973-575 | Verizon (local phone) | Local phone company | – |
| 973-582 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 973-618 | Verizon (local phone) | Local phone company | – |
| 973-632 | Verizon Wireless | Mobile carrier | – |
| 973-641 | T-Mobile (including Sprint) | Mobile carrier | – |
| 973-650 | Verizon Wireless | Mobile carrier | – |
| 973-652 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 973-654 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 973-703 | T-Mobile (including Sprint) | Mobile carrier | – |
| 973-725 | T-Mobile (including Sprint) | Mobile carrier | – |
| 973-747 | Verizon Wireless | Mobile carrier | 2004 |
| 973-768 | Verizon Wireless | Mobile carrier | – |
| 973-787 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 973-797 | Cooperative Communications | Local phone company | – |
| 973-808 | Verizon (local phone) | Local phone company | – |
| 973-809 | Verizon Wireless | Mobile carrier | – |
| 973-830 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 973-840 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 973-852 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 973-865 | Verizon Wireless | Mobile carrier | – |
| 973-882 | Verizon (local phone) | Local phone company | – |
| 973-979 | T-Mobile (including Sprint) | Mobile carrier | – |
| 973-980 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
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.