| Business | Phone |
| Adelphia Communications 1260 S Dupont Ave, Ontario 91761 | (909) 481-1115 |
| Digital Communications 4335 E Airport Dr # 102, Ontario 91761 | (909) 390-6333 |
| Incredible Electronics 3929 E Guasti Rd, Ontario 91761 | (909) 390-9294 |
| International Cable Svc 1535 N Baker Ave, Ontario 91764 | (909) 579-0022 |
| Ultralink/Xlo Products 2030 S Carlos Ave, Ontario 91761 | (909) 947-6960 |
| Adelphia 1260 S Dupont Ave, Ontario 91761 | (909) 481-1115 |