| Business | Phone |
| 3 Pro Telecom Inc 3617 Mishawaka Ave, South Bend 46615 | (574) 233-7964 |
| All Source Telecom 219 N Dixie Way, South Bend 46637 | (574) 243-3830 |
| Charles S Hayes Inc 814 Marietta St, South Bend 46601 | (574) 233-1296 |
| Global Access Point Lcc 4001 Technology Dr, South Bend 46628 | (574) 472-0750 |
| Sbc 4444 Ameritech Dr, South Bend 46628 | (574) 271-4000 |
| Telecom Specialists Inc South Bend 46601 | (574) 234-3100 |