| Business | Phone |
| Cellular Center 615 N Main St, Spearfish 57783 | (605) 722-7600 |
| Cellular One 935 E Colorado Blvd, Spearfish 57783 | (605) 642-5800 |
| Red Dot Wireless 2125 N Main St, Spearfish 57783 | (605) 642-5900 |
| Ensignal 139 W Illinois St, Spearfish 57783 | (605) 644-0117 |