READING — MA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VERIZON NEW ENGLAND INC. | 9102 | 5 |
| BANDWIDTH.COM CLEC, LLC - MA | 990E | 5 |
| COMCAST IP PHONE, LLC | 318J | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 1 |
| TC SYSTEMS, INC. | 7135 | 1 |