WESTPORT — MA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 1 |
| METROPCS, INC. | 5562 | 1 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 1 |
| ONVOY, LLC - MA | 892D | 1 |