SUDBURY — MA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VERIZON NEW ENGLAND INC. | 9102 | 5 |
| BANDWIDTH.COM CLEC, LLC - MA | 990E | 3 |
| NEP, LLC | 174A | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | 1 |
| TC SYSTEMS, INC. | 7135 | 1 |