SHEFFIELD — MA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| PAETEC ITEL, LLC | 829J | 2 |
| BANDWIDTH.COM CLEC, LLC - MA | 990E | 2 |
| VERIZON NEW ENGLAND INC. | 9102 | 1 |
| COMMIO, LLC | 939H | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| PAETEC ITEL, LLC | 829J | 2 |
| BANDWIDTH.COM CLEC, LLC - MA | 990E | 2 |
| VERIZON NEW ENGLAND INC. | 9102 | 1 |
| COMMIO, LLC | 939H | 1 |