| Business | Phone |
| A T & T 1231 S California Blvd, Walnut Creek 94596 | (925) 274-0260 |
| Cingular Wireless 99 Broadway Ln, Walnut Creek 94596 | (925) 974-1180 |
| Interactive Solutions 3075 Citrus Cir # 208, Walnut Creek 94598 | (925) 274-1074 |
| Nextel Retail 27 Broadway Ln, Walnut Creek 94596 | (925) 932-2057 |
| Radio Shack 1537 N Main St, Walnut Creek 94596 | (925) 937-2330 |
| Radio Shack 2987 Ygnacio Valley Rd, Walnut Creek 94598 | (925) 256-7067 |
| T Mobile 1901 Olympic Blvd, Walnut Creek 94596 | (925) 926-0210 |
| Virgin Mobile Usa 2185 N California Blvd # 300, Walnut Creek 94596 | (925) 927-6800 |