WARREN — MA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| VERIZON NEW ENGLAND INC. | 9102 | 1 |
| COMMIO, LLC | 939H | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| VERIZON NEW ENGLAND INC. | 9102 | 1 |
| COMMIO, LLC | 939H | 1 |