BILLERICA — MA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VERIZON NEW ENGLAND INC. | 9102 | 10 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 9 |
| BANDWIDTH.COM CLEC, LLC - MA | 990E | 5 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 4 |
| PAETEC ITEL, LLC | 829J | 4 |