| Business | Phone |
| Communication Center 237 N Michigan St, South Bend 46601 | (574) 234-6021 |
| Data Communications Products 720 Fellows St, South Bend 46601 | (574) 237-0562 |
| Jdm Communications 101 N Michigan St, South Bend 46601 | (574) 237-1082 |
| Mobile Communications 1626 Lincoln Way E, South Bend 46613 | (574) 232-5876 |
| Pathfinders Communications 19851 Brick Rd, South Bend 46637 | (574) 243-1292 |
| Sharp Communications 211 W Washington St, South Bend 46601 | (574) 239-3200 |
| Wil Tel Communications 1140 Franklin St, South Bend 46601 | (574) 289-0795 |
| Zoss Communications Bbs 714 E La Salle Ave, South Bend 46617 | (574) 288-1402 |