Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KK4-prefix vanity callsigns coming available
Vanity slots whose callsigns start with KK4. Sorted by availability date — soonest first.
Showing 351– 400 of 4,090
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| KK4MRJ | SC | 2026-11-15in 61d | 2022-11-16 | Snider, David E | Expired |
| KK4MRK | FL | 2026-11-15in 61d | 2022-11-16 | Morel, Andrew T | Expired |
| KK4MRL | FL | 2026-11-15in 61d | 2022-11-16 | Katzman Jr, Robert E | Expired |
| KK4MRM | FL | 2026-11-15in 61d | 2022-11-16 | Ziegler, Ross C | Expired |
| KK4MRO | VA | 2026-11-15in 61d | 2022-11-16 | Schwarzkopf, Christian N | Expired |
| KK4MRR | FL | 2026-11-15in 61d | 2022-11-16 | Cavalcanti, Lauren D | Expired |
| KK4MRS | FL | 2026-11-15in 61d | 2022-11-16 | HERNANDEZ, CARLOS A | Expired |
| KK4MRT | FL | 2026-11-15in 61d | 2022-11-16 | LIMA, ANTONIO O | Expired |
| KK4MRU | FL | 2026-11-15in 61d | 2022-11-16 | RICHARD, SLATON A | Expired |
| KK4MRV | VA | 2026-11-15in 61d | 2022-11-16 | MOSS, JUSTIN H | Expired |
| KK4MRW | TN | 2026-11-15in 61d | 2022-11-16 | GEYER, WILLIAM D | Expired |
| KK4MRX | VA | 2026-11-15in 61d | 2022-11-16 | TAMILLOW, RICHARD M | Expired |
| KK4MRZ | FL | 2026-11-18in 64d | 2022-11-19 | COOK, GREGORY C | Expired |
| KK4MSE | KY | 2026-11-18in 64d | 2022-11-19 | West, Daniel R | Expired |
| KK4MSF | GA | 2026-11-18in 64d | 2022-11-19 | Ball, Wyatt E | Expired |
| KK4MSH | SC | 2026-11-18in 64d | 2022-11-19 | ROY, LOUIS J | Expired |
| KK4MSL | NC | 2026-11-18in 64d | 2022-11-19 | RIVERA, ROBERTO D | Expired |
| KK4MSO | KY | 2026-11-20in 66d | 2022-11-21 | Wagner, Kelsey M | Expired |
| KK4MSP | KY | 2026-11-20in 66d | 2022-11-21 | Weirich, Connor G | Expired |
| KK4MSQ | KY | 2026-11-20in 66d | 2022-11-21 | Stathis, Evan I | Expired |
| KK4MSR | KY | 2026-11-20in 66d | 2022-11-21 | Spurlock, Michael A | Expired |
| KK4MSS | KY | 2026-11-20in 66d | 2022-11-21 | Ralenkotter, Charles T | Expired |
| KK4MST | KY | 2026-11-20in 66d | 2022-11-21 | Morris, Tyler E | Expired |
| KK4MSU | KY | 2026-11-20in 66d | 2022-11-21 | Moore, Michael C | Expired |
| KK4MSV | KY | 2026-11-20in 66d | 2022-11-21 | Megerle, Steven J | Expired |
| KK4MSW | KY | 2026-11-20in 66d | 2022-11-21 | Kuhlman, Benjamin S | Expired |
| KK4MSX | KY | 2026-11-20in 66d | 2022-11-21 | Harrison, Daniel L | Expired |
| KK4MSY | KY | 2026-11-20in 66d | 2022-11-21 | Haney, Robert P | Expired |
| KK4MTA | GA | 2026-11-20in 66d | 2022-11-21 | Sheffield Jr, William A | Expired |
| KK4MTB | KY | 2026-11-20in 66d | 2022-11-21 | Marshall, Mishele R | Expired |
| KK4MTE | GA | 2026-11-20in 66d | 2022-11-21 | RUFFENACH SR, GEGORY A | Expired |
| KK4MTF | FL | 2026-11-20in 66d | 2022-11-21 | FOX, CHRISTOPHER J | Expired |
| KK4MTG | FL | 2026-11-20in 66d | 2022-11-21 | FOX, ANNE-MARIE V | Expired |
| KK4MTH | NC | 2026-11-20in 66d | 2022-11-21 | MULLINS II, TOLLIE R | Expired |
| KK4MTK | TN | 2026-11-20in 66d | 2022-11-21 | Seffernick Jr, Robert T | Expired |
| KK4MTL | TN | 2026-11-20in 66d | 2022-11-21 | Elliott, Carl R | Expired |
| KK4MTO | GA | 2026-11-20in 66d | 2022-11-21 | Griffin, John K | Expired |
| KK4MTV | FL | 2026-11-20in 66d | 2022-11-21 | McCaul, Brian J | Expired |
| KK4MTW | VA | 2026-11-20in 66d | 2022-11-21 | Foresman, Dillon R | Expired |
| KK4MUC | KY | 2026-11-20in 66d | 2022-11-21 | Doker, Dylan M | Expired |
| KK4MUD | KY | 2026-11-20in 66d | 2022-11-21 | Crowe, Dylan A | Expired |
| KK4MUE | KY | 2026-11-20in 66d | 2022-11-21 | Clark, Tanner J | Expired |
| KK4MUF | KY | 2026-11-20in 66d | 2022-11-21 | Munoz Jr, Aaron M | Expired |
| KK4MUG | KY | 2026-11-20in 66d | 2022-11-21 | Wheaton, Jake S | Expired |
| KK4MUH | KY | 2026-11-20in 66d | 2022-11-21 | Mason, Spencer F | Expired |
| KK4MUI | KY | 2026-11-20in 66d | 2022-11-21 | Klei, Justin M | Expired |
| KK4MUJ | KY | 2026-11-20in 66d | 2022-11-21 | Hatton, Tyler N | Expired |
| KK4MUL | OH | 2026-11-20in 66d | 2022-11-21 | Deutscher, Zachary P | Expired |
| KK4MUM | CO | 2026-11-20in 66d | 2022-11-21 | Florido, Melissa A | Expired |
| KK4MUO | TN | 2026-11-20in 66d | 2022-11-21 | Knott, Jodi | Expired |