| Business | Phone |
| Metrotel Communications 5211 Preston Hwy, Louisville 40213 | (502) 964-1355 |
| Lucent Technologies 4215 Produce Rd, Louisville 40218 | (502) 962-4629 |
| Ecomtek Telecom Llc 3107 Haddon Rd, Louisville 40241 | (502) 326-5739 |
| Phoneworks Llc 2510 Meadow Rd, Louisville 40205 | (502) 817-7146 |
| Univ-Louisville Info Tech Miller It Ctr 109, Louisville 40292 | (502) 852-6118 |
| Eclipse Telecommunications 500 W Jefferson St, Louisville 40202 | (502) 992-5575 |
| Voic Communications 152 Thierman Ln, Louisville 40207 | (502) 500-8052 |
| Avaya Inc 9300 Shelbyville Rd, Louisville 40222 | (502) 429-1500 |
| Sbc Telecom 4801 Commerce Crossings Dr, Louisville 40229 | (502) 968-1798 |
| Omni Communications Inc 12700 Shelbyville Rd 100, Louisville 40243 | (502) 244-4215 |
| Covad Communications Louisville 40291 | (502) 231-3450 |