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 251– 300 of 474
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| K4OIL | FL | 2028-03-04in 537d | 2024-03-05 | SCHONER, RONALD E | Expired |
| K4OSI | TN | 2028-03-04in 537d | 2024-03-05 | Johnson, Robert M | Expired |
| K4OVP | SC | 2028-03-04in 537d | 2024-03-05 | BOWERS, BRUCE L | Expired |
| K4PHT | TN | 2028-03-04in 537d | 2024-03-05 | GOSSETT, KENNETH B | Expired |
| K4PIB | CA | 2028-03-04in 537d | 2024-03-05 | Dinkins, Brian | Expired |
| K4PIG | FL | 2028-03-04in 537d | 2024-03-05 | MC MILLAN, RICHARD J | Expired |
| K4PSS | GA | 2028-03-04in 537d | 2024-03-05 | Peng, Samuel S | Expired |
| K4QWE | FL | 2028-03-04in 537d | 2024-03-05 | FISKE, ROY A | Expired |
| K4RHB | AL | 2028-03-04in 537d | 2024-03-05 | BURNS, ROBERT H | Expired |
| K4RPC | SC | 2028-03-04in 537d | 2024-03-05 | LEE, ROLAND H | Expired |
| K4RTJ | AL | 2028-03-04in 537d | 2024-03-05 | JAMES, ROMALETA T | Expired |
| K4SRX | VA | 2028-03-04in 537d | 2024-03-05 | RINKER, GARY E | Expired |
| K4SUG | SC | 2028-03-04in 537d | 2024-03-05 | ALLISON JR, LOTUS R | Expired |
| K4TIV | TN | 2028-03-04in 537d | 2024-03-05 | JOHNSON, ERNEST F | Expired |
| K4TLK | VA | 2028-03-04in 537d | 2024-03-05 | KIRBY, CHRISTINA L | Expired |
| K4TSF | TN | 2028-03-04in 537d | 2024-03-05 | Dobbs Jr, William P | Expired |
| K4TVS | KS | 2028-03-04in 537d | 2024-03-05 | Bowers, Randy | Expired |
| K4UEM | TN | 2028-03-04in 537d | 2024-03-05 | CHRISTIAN AMATEUR RADIO EXCHANGE SERVICE | Expired |
| K4UIG | GA | 2028-03-04in 537d | 2024-03-05 | BARGERON JR, LONNIE | Expired |
| K4UVB | TN | 2028-03-04in 537d | 2024-03-05 | ROSS JR, JAMES M | Expired |
| K4VMO | TN | 2028-03-04in 537d | 2024-03-05 | Holladay, Franklin D | Expired |
| K4VPL | VA | 2028-03-04in 537d | 2024-03-05 | PIERCY, JORGE R | Expired |
| K4VWR | SC | 2028-03-04in 537d | 2024-03-05 | BOLING, MICHAEL D | Expired |
| K4VZK | KY | 2028-03-04in 537d | 2024-03-05 | KIEPER, GARY M | Expired |
| K4WPD | AL | 2028-03-04in 537d | 2024-03-05 | Douglas, William P | Expired |
| K4YAM | VA | 2028-03-04in 537d | 2024-03-05 | CARSON III, ROBERT D | Expired |
| K4YWC | FL | 2028-03-04in 537d | 2024-03-05 | FLYNN, MARVIN G | Expired |
| K4ZFQ | TN | 2028-03-04in 537d | 2024-03-05 | Walton Sr, James T | Expired |
| K4ZTT | ME | 2028-03-04in 537d | 2024-03-05 | GILBERT, JAMES L | Expired |
| K4MYA | AE | 2028-03-05in 538d | 2024-03-06 | Lemanski Jr, Kenneth M | Expired |
| K4AJE | FL | 2028-03-07in 540d | 2024-03-08 | Gray Jr, Alvers H | Expired |
| K4BJF | FL | 2028-03-07in 540d | 2024-03-08 | Bull, John C | Expired |
| K4EHD | GA | 2028-03-07in 540d | 2024-03-08 | Crouch IV, James R | Expired |
| K4GPG | FL | 2028-03-09in 542d | 2024-03-10 | SWEITZER, DON | Expired |
| K4PAV | FL | 2028-03-09in 542d | 2024-03-10 | Veress, Phyllis A | Expired |
| K4WTO | KY | 2028-03-10in 543d | 2024-03-11 | BROWN, ROSS M | Expired |
| K4JYC | GA | 2028-03-14in 547d | 2024-03-15 | ROLLOW, DAVID G | Expired |
| K4PQD | VA | 2028-03-14in 547d | 2024-03-15 | GIMBERT, THOMAS W | Expired |
| K4UVC | GA | 2028-03-14in 547d | 2024-03-15 | YARBROUGH, BRIAN L | Expired |
| K4ZMC | NC | 2028-03-14in 547d | 2024-03-15 | Feldman, Alvin L | Expired |
| K4EZI | TN | 2028-03-16in 549d | 2026-03-17 | Williamson, Jennifer C | Cancelled |
| K4DVL | SC | 2028-03-17in 550d | 2024-03-18 | FIAMENGO, STEVEN A | Expired |
| K4SDH | SC | 2028-03-20in 553d | 2024-03-21 | HAHN, STEPHEN D | Expired |
| K4AWR | AZ | 2028-03-21in 554d | 2024-03-22 | FERRIS, BRUCE L | Expired |
| K4BXY | NC | 2028-03-21in 554d | 2024-03-22 | WALTON, WILLIE B | Expired |
| K4BXZ | VA | 2028-03-21in 554d | 2024-03-22 | SLAUGHTER, FRANCIS L | Expired |
| K4DSE | KY | 2028-03-21in 554d | 2024-03-22 | Collins, Gerald L | Expired |
| K4DXL | FL | 2028-03-21in 554d | 2024-03-22 | Smith, Jack E | Expired |
| K4FJK | KY | 2028-03-21in 554d | 2024-03-22 | SEMONES, DAVID G | Expired |
| K4HBI | GA | 2028-03-21in 554d | 2024-03-22 | SWIDERSKI, MICHAEL J | Expired |