The Federal Communications Commission (FCC) has granted 4 radio service licenses and call signs in Rio Frio, Texas. Select a call sign from the table below to view its details such as the date of authorization, expiration date, service description, and so forth.
| Name | Address, Zip |
|---|---|
| KC5QED | PO Box 91, 78879 |
| KC5QEE | PO Box 91, 78879 |
| RR00053231 | PO Box 25, 78879 |
| WRDU434 | 3088 RR 1120, PO Box 78879, 78879 |
