| Business | Phone |
| 2k Wireless 21080 Golden Springs Dr, Walnut 91789 | (909) 594-4444 |
| C & R Wireless 784 Nogales Ave, Walnut 91789 | (626) 820-0821 |
| Cingular Wireless 1243 N Grand Ave, Walnut 91789 | (909) 468-1880 |
| Cingular Wireless 385 S Lemon Ave, Walnut 91789 | (909) 869-0060 |
| Dream Wireless Inc 20277 Valley Blvd # G, Walnut 91789 | (909) 468-4800 |
| E Century Wireless 1253 N Grand Ave, Walnut 91789 | (909) 869-5866 |