| Business | Phone |
| Aircall Wireless 4005 Grand Ave, Chino 91710 | (909) 590-2400 |
| Cingular Wireless 3825 Grand Ave, Chino 91710 | (909) 464-0555 |
| Mobile Magic Of California 3943 Grand Ave, Chino 91710 | (909) 548-4731 |
| Nextel Communications 3817 Grand Ave, Chino 91710 | (909) 517-3911 |
| Nextel Wireless 12155 Central Ave, Chino 91710 | (909) 364-8191 |
| S C Koisk 3951 Grand Ave, Chino 91710 | (909) 902-5868 |
| Sprint 11971 Central Ave, Chino 91710 | (909) 548-6767 |
| Sprint Pcs 3959 Grand Ave, Chino 91710 | (909) 591-3330 |
| T Mobile 3660 Grand Ave # G, Chino 91710 | (909) 591-5570 |
| T Mobile 3935 Grand Ave, Chino 91710 | (909) 628-4322 |