| Business | Phone |
| Westower Communications 5120 Nike Dr, Columbus 43215 | (614) 545-0378 |
| Atlantic & Pacific Telcom Inc 2615 W Broad St, Columbus 43204 | (614) 279-4112 |
| Tower Resource Management Inc 975 S High St, Columbus 43206 | (614) 443-9861 |
| United Telecommunication 225 Fairway Blvd, Columbus 43213 | (614) 552-8005 |
| United Telecommunications 772 S Broadleigh Rd, Columbus 43209 | (614) 238-8290 |
| Tel Cove 580 N 4th St, Columbus 43215 | (614) 221-4820 |
| Telecommunication Technologies 1080 Kingsmill Pkwy # 310, Columbus 43229 | (614) 888-8221 |
| C Link Inc 3000 W Broad St, Columbus 43204 | (614) 279-7979 |
| Dataserv Inc 2931 E Dublin Granville Rd, Columbus 43231 | (614) 899-1189 |
| Microtel 5451 Feder Rd, Columbus 43228 | (614) 851-1745 |