Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K4-prefix vanity callsigns coming available
Vanity slots whose callsigns start with K4. Sorted by availability date — soonest first.
Showing 1– 50 of 480
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| K4HCL | FL | 2026-09-09 now | 2022-09-10 | Doddington, Claudia W | Expired |
| K4CYG | FL | 2026-09-10in 1d | 2022-09-11 | Stone, Theodore E | Expired |
| K4LWW | NC | 2026-09-10in 1d | 2024-09-10 | GAITHER, CHRISTOPHER D | Cancelled |
| K4ONS | NC | 2026-09-10in 1d | 2022-09-11 | OLD NORTH STATE WIRELESS SOCIETY | Expired |
| K4YDD | FL | 2026-09-10in 1d | 2022-09-11 | COLLISON, RONALD E | Expired |
| K4KLP | TN | 2026-09-13in 4d | 2022-09-14 | SHEPHERD, HOWARD L | Expired |
| K4OTU | KY | 2026-09-14in 5d | 2022-09-15 | KENNEDY, WILLIAM C | Expired |
| K4MBH | TN | 2026-09-16in 7d | 2022-09-17 | HUFF, MICHAEL B | Expired |
| K4THL | FL | 2026-09-16in 7d | 2022-09-17 | Lewis Sr, Thomas H | Expired |
| K4PTK | TN | 2026-09-20in 11d | 2022-09-21 | Krause, Timothy R | Expired |
| K4BLY | NC | 2026-09-21in 12d | 2024-09-21 | BENAC, PETER P | Cancelled |
| K4YXJ | GA | 2026-09-24in 15d | 2022-09-25 | LOEWENTHAL, ROBERT J | Expired |
| K4WLS | GA | 2026-09-27in 18d | 2022-09-28 | Dawson, Joseph A | Expired |
| K4MMS | VA | 2026-09-28in 19d | 2024-09-28 | SIMMONS, MATTHEW M | Cancelled |
| K4UDP | FL | 2026-10-04in 25d | 2022-10-05 | Treftz, Kristjan K | Expired |
| K4YBN | SC | 2026-10-08in 29d | 2024-10-08 | Morgan, Phillip M | Cancelled |
| K4XDW | TN | 2026-10-09in 30d | 2022-10-10 | Willoughby, David L | Expired |
| K4LLB | FL | 2026-10-12in 33d | 2022-10-13 | BELL, LYLE L | Expired |
| K4ONY | FL | 2026-10-12in 33d | 2022-10-13 | SCHEMPP, THEODORE L | Expired |
| K4VMH | AL | 2026-10-12in 33d | 2022-10-13 | HUGHES, CHESTER M | Expired |
| K4CSH | KY | 2026-10-15in 36d | 2022-10-16 | KENTUCKIANA RADIO CLUB INC | Expired |
| K4JUL | ID | 2026-10-18in 39d | 2024-10-18 | Dixon, Brian S | Cancelled |
| K4RSO | SC | 2026-10-19in 40d | 2022-10-20 | Osborne, Roy S | Expired |
| K4KRL | SC | 2026-10-25in 46d | 2024-10-25 | LARKIN, KEVIN R | Cancelled |
| K4ZVD | FL | 2026-10-26in 47d | 2022-10-27 | Ullman, Samuel C | Expired |
| K4RJZ | AL | 2026-11-02in 54d | 2024-11-02 | Turner, Harold K | Cancelled |
| K4SNO | SC | 2026-11-05in 57d | 2022-11-06 | SNOW, DANIEL A | Expired |
| K4RFX | KY | 2026-11-08in 60d | 2024-11-08 | Ford, Rodney L | Cancelled |
| K4SDT | TN | 2026-11-13in 65d | 2024-11-13 | JONES, JOHN D | Cancelled |
| K4FLP | KY | 2026-11-16in 68d | 2022-11-17 | PENDLETON JR, STERLING J | Expired |
| K4UKC | FL | 2026-11-18in 70d | 2022-11-19 | Ashford, Jack M | Expired |
| K4FJS | TN | 2026-11-19in 71d | 2022-11-20 | Pegg Sr, Raymond E | Expired |
| K4KHF | GA | 2026-11-19in 71d | 2024-11-19 | JORDAN SR, CHRISTOPHER | Cancelled |
| K4ZGH | FL | 2026-11-19in 71d | 2022-11-20 | Livingston, Barbara J | Expired |
| K4MEH | NC | 2026-11-21in 73d | 2022-11-22 | Hawthorne, Mary E | Expired |
| K4WOK | NC | 2026-11-21in 73d | 2022-11-22 | LANCE, ROBERT D | Expired |
| K4AEA | VA | 2026-11-22in 74d | 2024-11-22 | ORNDORFF, MICHAEL B | Cancelled |
| K4GLX | NC | 2026-11-22in 74d | 2024-11-22 | Blackwood, Christopher M | Cancelled |
| K4REI | NC | 2026-11-22in 74d | 2024-11-22 | Rausch, Walter J | Cancelled |
| K4YKN | FL | 2026-11-23in 75d | 2024-11-23 | MONFORE, RAY G | Cancelled |
| K4VST | GA | 2026-11-25in 77d | 2022-11-26 | REID, BETTYE H | Expired |
| K4RZZ | FL | 2026-11-26in 78d | 2024-11-26 | STOCK JR, THOMAS B | Cancelled |
| K4DWJ | ID | 2026-11-30in 82d | 2022-12-01 | JETT, DANIEL W | Expired |
| K4MRI | NY | 2026-12-03in 85d | 2022-12-04 | ALLEN, SHAUN E | Expired |
| K4KOO | FL | 2026-12-06in 88d | 2024-12-06 | ENGELMAN, JACOB | Cancelled |
| K4REH | NC | 2026-12-09in 91d | 2022-12-10 | Heilman, Robert E | Expired |
| K4LCO | FL | 2026-12-10in 92d | 2024-12-10 | Albornett Fente, Maximo J | Cancelled |
| K4IJA | SC | 2026-12-13in 95d | 2022-12-14 | CAMPBELL, THOMAS H | Expired |
| K4WDK | CA | 2026-12-17in 99d | 2022-12-18 | Wilson, Scott A | Expired |
| K4BNR | TN | 2026-12-20in 102d | 2022-12-21 | RIGGINS, BILL N | Expired |