| Business | Phone |
| Abi Telecom Advance Bus Ins 5009 N Hollywood Ave, Milwaukee 53217 | (414) 967-9981 |
| American Communication Tech 4680 W Bradley Rd, Milwaukee 53223 | (414) 355-2122 |
| Badger Communication Network 715 E Beaumont Ave, Milwaukee 53217 | (414) 961-1262 |
| Calibre Communications 6310 N Port Washington Rd, Milwaukee 53217 | (414) 964-1889 |
| Cremer Engineering Co Inc 10200 W Innovation Dr 200, Milwaukee 53226 | (414) 774-8300 |
| Direct Connect Inc 811 S 56th St, Milwaukee 53214 | (414) 774-8082 |
| Excel Telecommunications Milwaukee 53218 | (414) 438-2356 |
| Fbr Telecom Svc Inc 2042 S Muskego Ave, Milwaukee 53204 | (414) 383-6626 |
| Fdv Communications Corp 9609 W Grant St, Milwaukee 53227 | (414) 327-7700 |
| Global Crossing 411 E Wisconsin Ave, Milwaukee 53202 | (414) 274-7500 |
| Hudson Telecom Systems Inc 2701 N 56th St # N, Milwaukee 53210 | (414) 875-6660 |
| Intelligent Network Solutions 10300 W Bluemound Rd A, Milwaukee 53226 | (414) 476-3200 |
| J & J Communications 8427 W Melvina St, Milwaukee 53222 | (414) 463-2869 |
| Lodging Industry Telemgmt Svc 3900 W Brown Deer Rd # A122, Milwaukee 53209 | (414) 257-9392 |
| Wire Connections 9189 N Goldendale Dr, Milwaukee 53223 | (414) 365-5581 |
| Telecom Solutions 1840 W Greenwood Rd, Milwaukee 53209 | (414) 247-1286 |
| Time Warner Telecom Inc 1710 N 6th St, Milwaukee 53212 | (414) 372-9015 |
| Sbc 313 S Curtis Rd, Milwaukee 53214 | (414) 678-4201 |
| Select Sound Svc 107 E National Ave, Milwaukee 53204 | (414) 645-1600 |