| Business | Phone |
| Cypress Communications 5205 Leesburg Pike, Falls Church 22041 | (703) 931-2435 |
| Focal Communications 7799 Leesburg Pike, Falls Church 22043 | (703) 637-8700 |
| Winstar Communications Corp 7799 Leesburg Pike, Falls Church 22043 | (703) 917-9117 |
| Worldwide Communications 6326 Arlington Blvd, Falls Church 22044 | (703) 237-3181 |
| Viet Meeting Inc 6795 Wilson Blvd 47, Falls Church 22044 | (703) 533-3838 |