NORTHBORO — MA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 2 |
| PAETEC ITEL, LLC | 829J | 2 |
| VERIZON NEW ENGLAND INC. | 9102 | 2 |
| METROPCS, INC. | 5562 | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | 1 |