MENDHAM — NJ
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BANDWIDTH.COM CLEC, LLC - NJ | 118F | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | 1 |
| CORETEL NEW JERSEY, INC. - NJ | 482F | 1 |
| CABLEVISION LIGHTPATH, INC. - NJ | 4948 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |