| Business | Phone |
| Nextel Communications 1255 Treat Blvd # 800, Walnut Creek 94597 | (925) 279-2300 |
| Parrot Cellular 1343 Locust St, Walnut Creek 94596 | (925) 280-1300 |
| Sprint Pcs 1406 N Broadway, Walnut Creek 94596 | (925) 974-1430 |
| Verizon Wireless 1646 N California Blvd # P103, Walnut Creek 94596 | (925) 988-6990 |
| Cellular Warehouse 1555 Botelho Dr, Walnut Creek 94596 | (925) 947-2500 |
| Northstar Wireless 2920 N Main St, Walnut Creek 94597 | (925) 296-0079 |
| T-Mobile 1657 Mount Diablo Blvd, Walnut Creek 94596 | (925) 926-0210 |
| Verizon Wireless 1141 Locust St, Walnut Creek 94596 | (925) 988-6990 |