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 701– 750 of 1,265
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| KC3BSR | PA | 2028-03-04in 535d | 2024-03-05 | Hilton Jr, Dale L | Expired |
| KC3BSU | PA | 2028-03-04in 535d | 2024-03-05 | Bi Balo, Stanley M | Expired |
| KC3BSW | MD | 2028-03-04in 535d | 2024-03-05 | DAVIS, CHRISTOPHER C | Expired |
| KC3BSX | DC | 2028-03-04in 535d | 2024-03-05 | BECKMANN, JONATHAN H | Expired |
| KC3BSZ | PA | 2028-03-04in 535d | 2024-03-05 | Prugh, Cynthia A | Expired |
| KC3BTA | PA | 2028-03-04in 535d | 2024-03-05 | McNamara, Stephen O | Expired |
| KC3BTC | PA | 2028-03-04in 535d | 2024-03-05 | Hampson, Kevin W | Expired |
| KC3BTE | PA | 2028-03-04in 535d | 2024-03-05 | Waybright, Kerry T | Expired |
| KC3BTF | PA | 2028-03-04in 535d | 2024-03-05 | Cook, Elijah R | Expired |
| KC3BTH | PA | 2028-03-04in 535d | 2024-03-05 | Dolly Sr, Harry E | Expired |
| KC3BTI | PA | 2028-03-04in 535d | 2024-03-05 | Clark, Dylan M | Expired |
| KC3BTJ | PA | 2028-03-04in 535d | 2024-03-05 | Bonetta, Vincenzo | Expired |
| KC3BTK | PA | 2028-03-04in 535d | 2024-03-05 | Striano, Nunzio | Expired |
| KC3BTP | PA | 2028-03-04in 535d | 2024-03-05 | Knuth Sr, Edward J | Expired |
| KC3BTR | PA | 2028-03-04in 535d | 2024-03-05 | Mihalovich, Robert A | Expired |
| KC3BTS | PA | 2028-03-04in 535d | 2024-03-05 | Wu, Youzi | Expired |
| KC3BTT | PA | 2028-03-04in 535d | 2024-03-05 | Barton, Spencer E | Expired |
| KC3BTW | MD | 2028-03-04in 535d | 2024-03-05 | Passmore, Christopher D | Expired |
| KC3BTY | DE | 2028-03-04in 535d | 2024-03-05 | Kovach, Charles A | Expired |
| KC3BTZ | DE | 2028-03-04in 535d | 2024-03-05 | Metts, Christopher | Expired |
| KC3BUA | DE | 2028-03-04in 535d | 2024-03-05 | Ferl, Tobias S | Expired |
| KC3BUB | DE | 2028-03-04in 535d | 2024-03-05 | Shahid, Eliezer L | Expired |
| KC3BUC | DE | 2028-03-04in 535d | 2024-03-05 | Lopez, John L | Expired |
| KC3BUD | DE | 2028-03-04in 535d | 2024-03-05 | Parsons III, Harry D | Expired |
| KC3BUE | DE | 2028-03-04in 535d | 2024-03-05 | Furman Jr, Scott M | Expired |
| KC3BUG | DE | 2028-03-04in 535d | 2024-03-05 | Cannon, Steven C | Expired |
| KC3BUH | DE | 2028-03-04in 535d | 2024-03-05 | Kollar, Richard A | Expired |
| KC3BUJ | DE | 2028-03-04in 535d | 2024-03-05 | Forder, James K | Expired |
| KC3BUK | DE | 2028-03-04in 535d | 2024-03-05 | Zellhart, Zachary D | Expired |
| KC3BUL | DE | 2028-03-04in 535d | 2024-03-05 | Hardy, Lawson A | Expired |
| KC3BUM | DE | 2028-03-04in 535d | 2024-03-05 | Bradley, David C | Expired |
| KC3BUN | DE | 2028-03-04in 535d | 2024-03-05 | Martell, Thomas M | Expired |
| KC3BUR | PA | 2028-03-04in 535d | 2024-03-05 | Spahr, Robert L | Expired |
| KC3BUS | PA | 2028-03-04in 535d | 2024-03-05 | Grim, Tyrus O | Expired |
| KC3BUU | PA | 2028-03-04in 535d | 2024-03-05 | Roshan, Mohammad A | Expired |
| KC3BUV | PA | 2028-03-04in 535d | 2024-03-05 | Tajak, Ahmad | Expired |
| KC3BVC | PA | 2028-03-04in 535d | 2024-03-05 | Burke, Michael T | Expired |
| KC3BVD | PA | 2028-03-04in 535d | 2024-03-05 | Burke, Jennifer L | Expired |
| KC3BVF | PA | 2028-03-04in 535d | 2024-03-05 | Burke, Joseph M | Expired |
| KC3BVG | PA | 2028-03-04in 535d | 2024-03-05 | Burke, Matthew C | Expired |
| KC3BVK | PA | 2028-03-04in 535d | 2024-03-05 | Brummundt, Richard T | Expired |
| KC3BVN | PA | 2028-03-04in 535d | 2024-03-05 | Rogan, Joseph W | Expired |
| KC3BVQ | PA | 2028-03-04in 535d | 2024-03-05 | Stouffer, Michael L | Expired |
| KC3BVR | PA | 2028-03-04in 535d | 2024-03-05 | BROWN, DAVID C | Expired |
| KC3BVS | PA | 2028-03-04in 535d | 2024-03-05 | MORAN, BRYAN P | Expired |
| KC3BVT | PA | 2028-03-04in 535d | 2024-03-05 | NGUYEN, QUANG T | Expired |
| KC3BWC | PA | 2028-03-04in 535d | 2024-03-05 | Repash, Patrick E | Expired |
| KC3BWR | PA | 2028-03-04in 535d | 2024-03-05 | Varnell, Timothy M | Expired |
| KC3BWS | PA | 2028-03-04in 535d | 2024-03-05 | Glaser Jr, John W | Expired |
| KC3BWU | DE | 2028-03-04in 535d | 2024-03-05 | Yanis, Jessica A | Expired |