| Business | Phone |
| A T & T Voice 8163 Community Dr, Manassas 20109 | (703) 361-5058 |
| Acns 9104 Manassas Dr F, Manassas 20111 | (703) 365-8655 |
| American Telephone Svc Manassas 20112 | (703) 791-6110 |
| Capital Telephone & Security 10402 Morias Ct, Manassas 20110 | (703) 330-0066 |
| Magellan Telecommunications 14197 Dumfries Rd, Manassas 20112 | (703) 791-7811 |