| Business | Phone |
| Comarco Wireless Technologies 1696 W Mill St # 20, Colton 92324 | (909) 384-9115 |
| Dee's Telephone Svc 2069 San Bernardino Ave, Colton 92324 | (909) 877-9700 |
| Direct Wireless Force 415 W Valley Blvd # 13, Colton 92324 | (909) 783-8376 |
| Nationwide Communications 1091 S Mount Vernon Ave, Colton 92324 | (909) 783-3088 |
| Cellular Warehouse 1120 S Mount Vernon Ave, Colton 92324 | (909) 783-9325 |
| All Brands Wireless 869 N Rancho Ave, Colton 92324 | (909) 370-3209 |