Phone numbers in Westfield, New Jersey
Westfield has 23 phone prefixes in area code 908.
Biggest holders: Verizon (local phone), Windstream (PAETEC), MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 9%
- Local phone company 43%
- Internet / business phone carrier 39%
- Phone company 9%
Every prefix in Westfield
Search the first six digits of a number in this list. If it's here, the number started in Westfield with the carrier shown. If it isn't, check the New Jersey page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 908-228 | T-Mobile (including Sprint) | Mobile carrier | – |
| 908-232 | Verizon (local phone) | Local phone company | – |
| 908-233 | Verizon (local phone) | Local phone company | – |
| 908-264 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 908-301 | Verizon (local phone) | Local phone company | – |
| 908-317 | Verizon (local phone) | Local phone company | – |
| 908-379 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 908-389 | Verizon (local phone) | Local phone company | – |
| 908-390 | Aquis Communications | Phone company | – |
| 908-408 | Onvoy | Internet / business phone carrier | – |
| 908-456 | T-Mobile (including Sprint) | Mobile carrier | – |
| 908-518 | Verizon (local phone) | Local phone company | – |
| 908-519 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 908-543 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 908-588 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 908-654 | Verizon (local phone) | Local phone company | – |
| 908-664 | Cooperative Communications | Local phone company | – |
| 908-728 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 908-789 | Verizon (local phone) | Local phone company | – |
| 908-873 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 908-913 | Monmouth Telephone And Telegraph | Phone company | – |
| 908-928 | Verizon (local phone) | Local phone company | – |
| 908-935 | MCImetro (Verizon Business) | 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.