WESTFIELD — MA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| PAETEC ITEL, LLC | 829J | 7 |
| VERIZON NEW ENGLAND INC. | 9102 | 4 |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 1 |
| STRATUS NETWORKS | 495J | 1 |
| METROPCS, INC. | 5562 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| PAETEC ITEL, LLC | 829J | 7 |
| VERIZON NEW ENGLAND INC. | 9102 | 4 |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 1 |
| STRATUS NETWORKS | 495J | 1 |
| METROPCS, INC. | 5562 | 1 |