Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4-prefix vanity callsigns coming available
Vanity slots whose callsigns start with K4. Sorted by availability date — soonest first.
Showing 201– 250 of 474
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| K4QQK | TN | 2028-02-02in 506d | 2026-02-02 | MAHRENHOLZ, BOB G | Cancelled |
| K4UGR | AL | 2028-02-07in 511d | 2026-02-07 | ATKISON, MICHAEL H | Cancelled |
| K4WAX | CA | 2028-02-24in 528d | 2026-02-24 | Feagans, Tim | Cancelled |
| K4EH | GA | 2028-02-27in 531d | 2026-02-27 | Haag, Mark E | Cancelled |
| K4AAN | AZ | 2028-03-04in 537d | 2024-03-05 | Orr, Simon D | Expired |
| K4AAP | NC | 2028-03-04in 537d | 2024-03-05 | WHITMOYER, RAYMOND J | Expired |
| K4ADW | KY | 2028-03-04in 537d | 2024-03-05 | BEAM JR, RICHMOND W | Expired |
| K4ALZ | KY | 2028-03-04in 537d | 2024-03-05 | FINAN SR, GERALD W | Expired |
| K4ARJ | KY | 2028-03-04in 537d | 2024-03-05 | Ham Operators Non Club Of Kentucky | Expired |
| K4AUH | NC | 2028-03-04in 537d | 2024-03-05 | GOAD JR, OTIS E | Expired |
| K4BAK | FL | 2028-03-04in 537d | 2024-03-05 | KELLER, BRUCE A | Expired |
| K4BBA | SC | 2028-03-04in 537d | 2024-03-05 | Mayo Jr, Edward L | Expired |
| K4BDJ | GA | 2028-03-04in 537d | 2024-03-05 | MC LENDON, DAVID K | Expired |
| K4BJP | FL | 2028-03-04in 537d | 2024-03-05 | MITCHELL, R EDWARD | Expired |
| K4BUJ | OH | 2028-03-04in 537d | 2024-03-05 | RODE, DONALD W | Expired |
| K4CDR | FL | 2028-03-04in 537d | 2024-03-05 | Burgholzer, John B | Expired |
| K4CMI | NC | 2028-03-04in 537d | 2024-03-05 | PHILLIPS JR, BENJAMIN B | Expired |
| K4CON | SC | 2028-03-04in 537d | 2024-03-05 | HALL, CONNIE S | Expired |
| K4DAS | VA | 2028-03-04in 537d | 2024-03-05 | SABELLA, DONALD A | Expired |
| K4DBH | GA | 2028-03-04in 537d | 2024-03-05 | GOODRUM, DONALD R | Expired |
| K4DFB | TN | 2028-03-04in 537d | 2024-03-05 | Beebe, Daniel F | Expired |
| K4DPT | TN | 2028-03-04in 537d | 2024-03-05 | Trexler, David E | Expired |
| K4ESW | TN | 2028-03-04in 537d | 2024-03-05 | FINCH, STANLEY J | Expired |
| K4EYS | FL | 2028-03-04in 537d | 2024-03-05 | Conch Republic Amateur Contest Klub | Expired |
| K4FCG | FL | 2028-03-04in 537d | 2024-03-05 | Brooksville Contest Club | Expired |
| K4FGU | SC | 2028-03-04in 537d | 2024-03-05 | White, Stephen F | Expired |
| K4FZC | NC | 2028-03-04in 537d | 2024-03-05 | CAMIN, EDWIN A | Expired |
| K4GBK | FL | 2028-03-04in 537d | 2024-03-05 | Kelley, Eugene B | Expired |
| K4GIF | VA | 2028-03-04in 537d | 2024-03-05 | GIFFORD, CORYDON R | Expired |
| K4GSB | NC | 2028-03-04in 537d | 2024-03-05 | BEAN, GREGORY S | Expired |
| K4HAJ | VA | 2028-03-04in 537d | 2024-03-05 | BROWN, JANET W | Expired |
| K4HFP | WA | 2028-03-04in 537d | 2024-03-05 | KANODE, THOMAS W | Expired |
| K4HOS | TN | 2028-03-04in 537d | 2024-03-05 | HOSKINS, NORMAN G | Expired |
| K4HXO | SC | 2028-03-04in 537d | 2024-03-05 | STARLING JR, ALFRED J | Expired |
| K4IFD | FL | 2028-03-04in 537d | 2024-03-05 | HOLDER SR, GEORGE L | Expired |
| K4JBA | FL | 2028-03-04in 537d | 2024-03-05 | AUSTEN, JANICE B | Expired |
| K4JBV | FL | 2028-03-04in 537d | 2024-03-05 | Martin, William F | Expired |
| K4JDJ | NC | 2028-03-04in 537d | 2024-03-05 | Young, James L | Expired |
| K4JTY | FL | 2028-03-04in 537d | 2024-03-05 | BUMP, ELTON W | Expired |
| K4JUG | SC | 2028-03-04in 537d | 2024-03-05 | WOMACK JR, FRANCIS M | Expired |
| K4JWL | NC | 2028-03-04in 537d | 2024-03-05 | OLSEN, GEORGE W | Expired |
| K4KDT | NC | 2028-03-04in 537d | 2024-03-05 | Thompson, Kelly D | Expired |
| K4LHC | SC | 2028-03-04in 537d | 2024-03-05 | CHILDERS, LESLIE H | Expired |
| K4LRJ | FL | 2028-03-04in 537d | 2024-03-05 | Jeffrey, Larry R | Expired |
| K4LRO | FL | 2028-03-04in 537d | 2024-03-05 | O Hearn, Lawrence R | Expired |
| K4MLE | KY | 2028-03-04in 537d | 2024-03-05 | DeYoung, Emily E | Expired |
| K4MNY | GA | 2028-03-04in 537d | 2024-03-05 | DUNCAN, HENRY L | Expired |
| K4NJB | AL | 2028-03-04in 537d | 2024-03-05 | Guest, Roderick B | Expired |
| K4NMC | GA | 2028-03-04in 537d | 2024-03-05 | Piedmont Newton Auxiliary Communications Team | Expired |
| K4NOY | VA | 2028-03-04in 537d | 2024-03-05 | Lytton, Michelle S | Expired |