WHIPPANY — NJ
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VERIZON NEW JERSEY, INC. | 9206 | 15 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 3 |
| AT&T - LOCAL | 7421 | 3 |
| PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | 2 |