| Business | Phone |
| Verizon Wireless 352 Northwest Plz # 615, St Ann 63074 | (314) 344-3459 |
| Preferred Paging Repair 10706 Saint Charles Rock Rd, St Ann 63074 | (314) 429-3000 |
| Prime Wireless 9104 Northwest Plz, St Ann 63074 | (314) 209-8686 |
| Mobile Solution Corp 9004 Northwest Plz, St Ann 63074 | (314) 344-1191 |