WINCHESTER — MA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| METROPCS, INC. | 5562 | 5 |
| VERIZON NEW ENGLAND INC. | 9102 | 4 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 2 |
| PAETEC ITEL, LLC | 829J | 2 |
| COMCAST IP PHONE, LLC | 318J | 1 |