| Business | Phone |
| A T & T Local Svc 310 W Wisconsin Ave, Milwaukee 53203 | (414) 298-1519 |
| A T & T Voice 826 W Michigan St, Milwaukee 53233 | (414) 225-0430 |
| All-Tech Telecom Inc 4926 N 106th St, Milwaukee 53225 | (414) 463-5180 |
| Choice One Communications 10101 W Innovation Dr # 150, Milwaukee 53226 | (414) 431-7260 |
| Wisconsin Budget Phone 152 W Wisconsin Ave, Milwaukee 53203 | (414) 347-1126 |
| Mci 1234 N Broadway, Milwaukee 53202 | (414) 271-2915 |
| Mci 6737 W Washington St, Milwaukee 53214 | (262) 207-7800 |
| Test Order 3045 W Grange Ave, Milwaukee 53221 | (414) 282-9274 |
| Nornight Telecommunications 722 N Broadway, Milwaukee 53202 | (414) 278-0013 |
| Ovation Communications Inc 731 N Jackson St, Milwaukee 53202 | (414) 226-0013 |
| Sbc 7419 W Bradley Rd, Milwaukee 53223 | (414) 357-7015 |
| Sbc 804 N Milwaukee St 2, Milwaukee 53202 | (414) 227-2988 |
| Sharon Telephone Co 625 W Madison St, Milwaukee 53204 | (262) 882-9981 |
| Point One Telecommunications 507 S 2nd St, Milwaukee 53204 | (414) 276-1056 |