| AreaCode | 240 |
| Prefix | 335 |
| City | Herndon |
| County | Fairfax |
| State | MD - Maryland |
| Zipcode/Postal Code | 22070 |
| Telco Company Name | Cavalier Telephone Mid-Atlanti |
| Operating Company Number (OCN) | 3910 |
| RateCenter | WSNG236Z14 |
| Common Language Location Identifier Code (CLLI) | HRNDVA13DS0 |
| Prefix Type | CLEC |
| Local access and transport area (LATA) | 236 |