GREENFIELD — MA
Data last updated: October 30, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| PAETEC ITEL, LLC | 829J | 4 |
| VERIZON NEW ENGLAND INC. | 9102 | 4 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | 3 |
| OMNIPOINT MIAMI E LICENSE, LLC | 6889 | 3 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 2 |