OSTERVILLE — MA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | 4 |
| VERIZON NEW ENGLAND INC. | 9102 | 4 |
| OMNIPOINT MIAMI E LICENSE, LLC | 6889 | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 1 |