ROCKVILLE — VA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| COMCAST IP PHONE, LLC | 318J | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - VA | 4644 | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| VERIZON VIRGINIA, INC. | 9213 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| COMCAST IP PHONE, LLC | 318J | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - VA | 4644 | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| VERIZON VIRGINIA, INC. | 9213 | 1 |