Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC1-prefix vanity callsigns coming available
Vanity slots whose callsigns start with KC1. Sorted by availability date — soonest first.
Showing 351– 400 of 1,232
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| KC1YBV | MA | 2027-08-15in 334d | 2025-08-15 | Friedman, Andrew R | Cancelled |
| KC1YCG | CT | 2027-08-16in 335d | 2025-08-16 | Diwan, Linkesh | Cancelled |
| KC1AJA | ME | 2027-08-18in 337d | 2023-08-19 | Corish, William E | Expired |
| KC1DNV | ME | 2027-08-19in 338d | 2025-08-19 | Gibbert, Jeremy L | Cancelled |
| KC1DQR | MA | 2027-08-19in 338d | 2025-08-19 | Mills, William C | Cancelled |
| KC1YBI | CT | 2027-08-19in 338d | 2025-08-19 | Dale, Patricia | Cancelled |
| KC1YCR | MA | 2027-08-19in 338d | 2025-08-19 | Tang, Daniel R | Cancelled |
| KC1YCV | NH | 2027-08-19in 338d | 2025-08-19 | Thompson, Taylor | Cancelled |
| KC1AJG | MA | 2027-08-20in 339d | 2023-08-21 | Tavares, John | Expired |
| KC1AJH | CT | 2027-08-20in 339d | 2023-08-21 | Galasyn, Valentine | Expired |
| KC1AJI | MA | 2027-08-21in 340d | 2023-08-22 | Burke, Corey M | Expired |
| KC1AJK | MA | 2027-08-21in 340d | 2023-08-22 | Jianacres Jr, James | Expired |
| KC1AJN | MA | 2027-08-22in 341d | 2023-08-23 | BUI, LILIAN | Expired |
| KC1AJO | MA | 2027-08-22in 341d | 2023-08-23 | BIRKEL, ANDREW J | Expired |
| KC1AJP | MA | 2027-08-22in 341d | 2023-08-23 | HUBER, FLORIAN G | Expired |
| KC1AJQ | VA | 2027-08-22in 341d | 2023-08-23 | Lara Jr, Jose D | Expired |
| KC1YDC | CT | 2027-08-23in 342d | 2025-08-23 | BARLOW, JOSHUA K | Cancelled |
| KC1AJS | ME | 2027-08-26in 345d | 2023-08-27 | Emmanouil, Karamousadakis | Expired |
| KC1AJV | MA | 2027-08-26in 345d | 2023-08-27 | Culpepper, Elizabeth V | Expired |
| KC1YDM | RI | 2027-08-26in 345d | 2025-08-26 | Jackson, Robert | Cancelled |
| KC1AKA | MA | 2027-08-28in 347d | 2023-08-29 | Belknap, William B | Expired |
| KC1AKB | NH | 2027-08-28in 347d | 2023-08-29 | McComiskey, Sidney J | Expired |
| KC1AKH | CT | 2027-08-29in 348d | 2023-08-30 | Lynch, Michael J | Expired |
| KC1AKI | CT | 2027-08-29in 348d | 2023-08-30 | Dillon Sr, David J | Expired |
| KC1AKJ | CT | 2027-08-29in 348d | 2023-08-30 | Sweeney, Rebecca | Expired |
| KC1PCT | MA | 2027-08-29in 348d | 2025-08-29 | Leighton, Peter | Cancelled |
| KC1UNF | MA | 2027-08-30in 349d | 2025-08-30 | Vyce, Christopher R | Cancelled |
| KC1AKL | MA | 2027-09-03in 353d | 2023-09-04 | Chittilappilly, Jean | Expired |
| KC1YBJ | CT | 2027-09-03in 353d | 2025-09-03 | Prior Jr, David H | Cancelled |
| KC1AKP | CT | 2027-09-04in 354d | 2023-09-05 | Barker, Hollis C | Expired |
| KC1AKR | CT | 2027-09-04in 354d | 2023-09-05 | Breen, Julia M | Expired |
| KC1AKS | MA | 2027-09-05in 355d | 2023-09-06 | Blain, Todd J | Expired |
| KC1VRO | MA | 2027-09-05in 355d | 2025-09-05 | Melchiori, Lynn M | Cancelled |
| KC1UBY | VT | 2027-09-06in 356d | 2025-09-06 | Canovatchel, Frank | Cancelled |
| KC1YEV | MA | 2027-09-06in 356d | 2025-09-06 | Foggon, Kieran R | Cancelled |
| KC1AKZ | CT | 2027-09-08in 358d | 2023-09-09 | Grieder, James W | Expired |
| KC1VCX | MA | 2027-09-09in 359d | 2025-09-09 | Martins, Rafael T | Cancelled |
| KC1WRY | MA | 2027-09-09in 359d | 2025-09-09 | Tellier, Michael | Cancelled |
| KC1YFD | MA | 2027-09-09in 359d | 2025-09-09 | Silver, Ava | Cancelled |
| KC1YFG | MA | 2027-09-09in 359d | 2025-09-09 | ANSELL, JOHN C | Cancelled |
| KC1ALC | RI | 2027-09-10in 360d | 2023-09-11 | Moore, Michael A | Expired |
| KC1ALG | ME | 2027-09-11in 361d | 2023-09-12 | Stedman, John M | Expired |
| KC1ALH | MA | 2027-09-12in 362d | 2023-09-13 | Presser, Adam G | Expired |
| KC1ALL | MA | 2027-09-16in 366d | 2023-09-17 | Rains, Sean P | Expired |
| KC1WXQ | MA | 2027-09-16in 366d | 2025-09-16 | Vanasse, Eric J | Cancelled |
| KC1ALS | MA | 2027-09-19in 369d | 2023-09-20 | VAN ALBERT, ERIC | Expired |
| KC1UYZ | CT | 2027-09-20in 370d | 2025-09-20 | Walker IV, James M | Cancelled |
| KC1WPF | ME | 2027-09-20in 370d | 2025-09-20 | Spezia, Mark L | Cancelled |
| KC1YAG | CT | 2027-09-23in 373d | 2025-09-23 | McKinney, Ross L | Cancelled |
| KC1ALT | CT | 2027-09-24in 374d | 2023-09-25 | Darival, Darison T | Expired |