Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4-prefix vanity callsigns coming available
Vanity slots whose callsigns start with KO4. Sorted by availability date — soonest first.
Showing 151– 180 of 180
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| KO4EYQ | TN | 2028-05-07in 600d | 2026-05-08 | Moseley, William R | Cancelled |
| KO4GMP | TN | 2028-05-07in 600d | 2026-05-08 | Wolfgang JR, James G | Cancelled |
| KO4HJD | GA | 2028-05-07in 600d | 2026-05-08 | Cannon, Walter J | Cancelled |
| KO4LKL | GA | 2028-05-07in 600d | 2026-05-08 | Gause, Shaun I | Cancelled |
| KO4UWJ | SC | 2028-05-08in 601d | 2026-05-09 | East, Jacob G | Cancelled |
| KO4EZW | FL | 2028-05-11in 604d | 2026-05-12 | Frank, Allan W | Cancelled |
| KO4EZX | FL | 2028-05-11in 604d | 2026-05-12 | Frank, Melissa A | Cancelled |
| KO4NSU | FL | 2028-05-11in 604d | 2026-05-12 | McCLURE, STEPHEN O | Cancelled |
| KO4QCD | NC | 2028-05-28in 621d | 2026-05-29 | Helton, Graham C | Cancelled |
| KO4JBR | FL | 2028-06-01in 625d | 2026-06-02 | Bakke, Thomas H | Cancelled |
| KO4HAC | FL | 2028-06-04in 628d | 2026-06-05 | Rodriguez, Daniel | Cancelled |
| KO4BR | AL | 2028-06-18in 642d | 2026-06-19 | Kruszewski SR, Buck R | Cancelled |
| KO4HLB | FL | 2028-06-26in 650d | 2026-06-27 | FRITZ, JACK R | Cancelled |
| KO4CRN | VA | 2028-06-28in 652d | 2026-06-29 | OLYNIEC, LEE M | Cancelled |
| KO4EQK | SC | 2028-06-29in 653d | 2026-06-30 | Nelson, Mary C | Cancelled |
| KO4RYR | TN | 2028-07-13in 667d | 2026-07-14 | SLOVER, DAWN M | Cancelled |
| KO4MNB | TX | 2028-07-16in 670d | 2026-07-17 | Wasson, James W | Cancelled |
| KO4IDA | FL | 2028-07-23in 677d | 2026-07-24 | Defant, John C | Cancelled |
| KO4OME | KY | 2028-07-23in 677d | 2026-07-24 | SouthCentral Kentucky Amateur Radio Service | Cancelled |
| KO4BTF | TN | 2028-07-24in 678d | 2026-07-25 | Campbell IV, James E | Cancelled |
| KO4JNQ | KY | 2028-07-27in 681d | 2026-07-28 | Pruitt, James M | Cancelled |
| KO4PZ | FL | 2028-08-03in 688d | 2026-08-04 | Silvers, Steven W | Cancelled |
| KO4JBJ | GA | 2028-08-10in 695d | 2026-08-11 | Mai, Huan | Cancelled |
| KO4UBK | WI | 2028-08-10in 695d | 2026-08-11 | Samz, Alloys J | Cancelled |
| KO4AOF | FL | 2028-08-13in 698d | 2026-08-14 | Montaigne, Jeanie C | Cancelled |
| KO4CVV | CT | 2028-08-13in 698d | 2026-08-14 | McNaughton, Daniel J | Cancelled |
| KO4CZS | FL | 2028-08-18in 703d | 2024-08-19 | Larsen, Dayl D | Expired |
| KO4FHX | VA | 2028-08-20in 705d | 2026-08-21 | Debes, Gary G | Cancelled |
| KO4ZIW | GA | 2028-08-27in 712d | 2026-08-28 | Barger, Curtis F | Cancelled |
| KO4KGS | VA | 2028-08-31in 716d | 2026-09-01 | Koenig, Steven W | Cancelled |