VIENNA, MD Rate Center
VIENNA — MD
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| TON80 COMMUNICATIONS, LLC | 516J | 1 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 1 |
| PAETEC ITEL, LLC | 829J | 1 |
| VERIZON MARYLAND, INC. | 9212 | 1 |