Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KC3-prefix vanity callsigns coming available
Vanity slots whose callsigns start with KC3. Sorted by availability date — soonest first.
Showing 651– 700 of 1,265
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| KC3BOJ | PA | 2028-03-04in 535d | 2024-03-05 | BROWNLEE JR, JOHN A | Expired |
| KC3BON | PA | 2028-03-04in 535d | 2024-03-05 | Rhodes, Phillip C | Expired |
| KC3BOP | MD | 2028-03-04in 535d | 2024-03-05 | Patapsco Valley Overlook Radio Club | Expired |
| KC3BOR | MD | 2028-03-04in 535d | 2024-03-05 | Harris Jr, Frank J | Expired |
| KC3BOS | MD | 2028-03-04in 535d | 2024-03-05 | Farrington, Michael J | Expired |
| KC3BOY | MD | 2028-03-04in 535d | 2024-03-05 | Gernat, Eric W | Expired |
| KC3BOZ | SC | 2028-03-04in 535d | 2024-03-05 | Weaver, James M | Expired |
| KC3BPA | MD | 2028-03-04in 535d | 2024-03-05 | Rolfes, Keith A | Expired |
| KC3BPB | MD | 2028-03-04in 535d | 2024-03-05 | Batong, Jovy A | Expired |
| KC3BPC | MD | 2028-03-04in 535d | 2024-03-05 | Graves, Ryan L | Expired |
| KC3BPD | PA | 2028-03-04in 535d | 2024-03-05 | Hardy, Kyle M | Expired |
| KC3BPI | PA | 2028-03-04in 535d | 2024-03-05 | BLOCK, LUKE R | Expired |
| KC3BPJ | MD | 2028-03-04in 535d | 2024-03-05 | BONTZOS, ALEXANDROS S | Expired |
| KC3BPQ | MD | 2028-03-04in 535d | 2024-03-05 | HAMILTON, DANIEL J | Expired |
| KC3BPT | PA | 2028-03-04in 535d | 2024-03-05 | Moody, Christopher J | Expired |
| KC3BPU | PA | 2028-03-04in 535d | 2024-03-05 | Hendricks Jr, John W | Expired |
| KC3BPV | PA | 2028-03-04in 535d | 2024-03-05 | Nunemacher, Drew J | Expired |
| KC3BPW | PA | 2028-03-04in 535d | 2024-03-05 | Vanderhoef, Thomas | Expired |
| KC3BPZ | PA | 2028-03-04in 535d | 2024-03-05 | Matychak, Zenon | Expired |
| KC3BQA | PA | 2028-03-04in 535d | 2024-03-05 | Leewright, Kenyon A | Expired |
| KC3BQB | PA | 2028-03-04in 535d | 2024-03-05 | Huber, Mary Lou A | Expired |
| KC3BQC | PA | 2028-03-04in 535d | 2024-03-05 | Larsen, Schuyler | Expired |
| KC3BQD | PA | 2028-03-04in 535d | 2024-03-05 | Corder, Jessica L | Expired |
| KC3BQE | PA | 2028-03-04in 535d | 2024-03-05 | Urban, Thomas M | Expired |
| KC3BQI | PA | 2028-03-04in 535d | 2024-03-05 | Ciaffoni Sr, William J | Expired |
| KC3BQN | MD | 2028-03-04in 535d | 2024-03-05 | Jefferson, Spencer I | Expired |
| KC3BQP | PA | 2028-03-04in 535d | 2024-03-05 | Pelton, Scott T | Expired |
| KC3BQQ | PA | 2028-03-04in 535d | 2024-03-05 | Davis Jr, Max E | Expired |
| KC3BQS | NH | 2028-03-04in 535d | 2024-03-05 | RIETMANN, CHRISTOPHER E | Expired |
| KC3BQV | MN | 2028-03-04in 535d | 2024-03-05 | Goss, Shannon L | Expired |
| KC3BQW | MD | 2028-03-04in 535d | 2024-03-05 | Meyer, Rustom L | Expired |
| KC3BQX | MD | 2028-03-04in 535d | 2024-03-05 | Pishchulin, Andrii | Expired |
| KC3BQZ | DC | 2028-03-04in 535d | 2024-03-05 | Beach, Shana K | Expired |
| KC3BRC | PA | 2028-03-04in 535d | 2024-03-05 | Swanson Jr, Donald J | Expired |
| KC3BRD | PA | 2028-03-04in 535d | 2024-03-05 | Morley, Tarisa A | Expired |
| KC3BRE | PA | 2028-03-04in 535d | 2024-03-05 | Morley, Brian R | Expired |
| KC3BRF | PA | 2028-03-04in 535d | 2024-03-05 | Gotthardt Sr, Robert J | Expired |
| KC3BRI | DE | 2028-03-04in 535d | 2024-03-05 | Janick, Stephen T | Expired |
| KC3BRM | DE | 2028-03-04in 535d | 2024-03-05 | Brown, Autumn E | Expired |
| KC3BRT | MD | 2028-03-04in 535d | 2024-03-05 | Johnson III, Thomas W | Expired |
| KC3BRY | PA | 2028-03-04in 535d | 2024-03-05 | Romanowski, Blake A | Expired |
| KC3BRZ | PA | 2028-03-04in 535d | 2024-03-05 | Pearce, John C | Expired |
| KC3BSB | PA | 2028-03-04in 535d | 2024-03-05 | Wnuk, Nathan | Expired |
| KC3BSC | PA | 2028-03-04in 535d | 2024-03-05 | Zurawski, Devin | Expired |
| KC3BSE | PA | 2028-03-04in 535d | 2024-03-05 | Cabinaw, Aaron P | Expired |
| KC3BSF | PA | 2028-03-04in 535d | 2024-03-05 | White, Harold R | Expired |
| KC3BSH | MD | 2028-03-04in 535d | 2024-03-05 | AYALA, JOSEPH F | Expired |
| KC3BSM | MD | 2028-03-04in 535d | 2024-03-05 | MALLOY, FITZHUGH P | Expired |
| KC3BSN | PA | 2028-03-04in 535d | 2024-03-05 | Amatuer Radio Club Penn State Harrisburg | Expired |
| KC3BSQ | PA | 2028-03-04in 535d | 2024-03-05 | Bischoff, Mark A | Expired |