District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4YSN | 11 | 55 | 2021-04-30 | 2023-05-01 | Available |
| K4YSO | 10 | 61 | — | — | Available |
| K4YSP | 10 | 61 | 2010-10-23 | 2012-10-24 | Available |
| K4YSQ | 10 | 63 | 2030-09-24 | — | Active |
| K4YSR | 11 | 57 | — | — | Available |
| K4YSS | 11 | 55 | — | — | Available |
| K4YST | 10 | 53 | — | — | Available |
| K4YSU | 11 | 57 | 2015-11-03 | 2017-11-04 | Available |
| K4YSV | 10 | 59 | — | — | Available |
| K4YSW | 10 | 59 | 2034-03-26 | — | Active (Vanity) |
| K4YSX | 10 | 61 | — | — | Available |
| K4YSY | 10 | 63 | — | — | Available |
| K4YSZ | 10 | 61 | — | — | Available |
| K4YTA | 9 | 53 | — | — | Available |
| K4YTB | 9 | 57 | 2027-01-04 | — | Active (Vanity) |
| K4YTC | 9 | 59 | 2012-09-14 | 2014-09-15 | Available |
| K4YTD | 9 | 55 | — | — | Available |
| K4YTE | 9 | 49 | 2012-07-10 | 2014-07-11 | Available |
| K4YTF | 9 | 57 | — | — | Available |
| K4YTG | 8 | 57 | — | — | Available |
| K4YTH | 9 | 55 | — | — | Available |
| K4YTI | 10 | 51 | — | — | Available |
| K4YTJ | 10 | 61 | — | — | Available |
| K4YTK | 9 | 57 | 2033-08-24 | — | Active |
| K4YTL | 9 | 57 | 2024-07-14 | 2026-07-15 | Available |
| K4YTM | 8 | 55 | — | — | Available |
| K4YTN | 10 | 53 | — | — | Available |
| K4YTO | 9 | 59 | 2027-04-23 | — | Active |
| K4YTP | 9 | 59 | — | — | Available |
| K4YTQ | 9 | 61 | 2028-04-24 | — | Active (Vanity) |
| K4YTR | 10 | 55 | — | — | Available |
| K4YTS | 10 | 53 | — | — | Available |
| K4YTT | 9 | 51 | 2024-09-20 | 2026-09-21 | Available |
| K4YTU | 10 | 55 | — | — | Available |
| K4YTV | 9 | 57 | — | — | Available |
| K4YTW | 9 | 57 | — | — | Available |
| K4YTX | 9 | 59 | 2029-07-14 | — | Active (Vanity) |
| K4YTY | 9 | 61 | — | — | Available |
| K4YTZ | 9 | 59 | 2029-06-19 | — | Active |
| K4YUA | 10 | 57 | — | — | Available |
| K4YUB | 10 | 61 | — | — | Available |
| K4YUC | 10 | 63 | 2033-11-18 | — | Active (Vanity) |
| K4YUD | 10 | 59 | — | — | Available |
| K4YUE | 10 | 53 | 1998-07-26 | 2000-07-27 | Available |
| K4YUF | 10 | 61 | — | — | Available |
| K4YUG | 9 | 61 | — | — | Available |
| K4YUH | 10 | 59 | — | — | Available |
| K4YUI | 11 | 55 | 2033-12-27 | — | Active (Vanity) |
| K4YUJ | 11 | 65 | 2029-12-08 | — | Active (Vanity) |
| K4YUK | 10 | 61 | 1998-03-15 | 2000-03-16 | Available |
| K4YUL | 10 | 61 | — | — | Available |
| K4YUM | 9 | 59 | — | — | Available |
| K4YUN | 11 | 57 | — | — | Available |
| K4YUO | 10 | 63 | — | — | Available |
| K4YUP | 10 | 63 | — | — | Available |
| K4YUQ | 10 | 65 | — | — | Available |
| K4YUR | 11 | 59 | — | — | Available |
| K4YUS | 11 | 57 | 2028-01-27 | — | Active (Vanity) |
| K4YUT | 10 | 55 | 2031-08-10 | — | Active (Vanity) |
| K4YUU | 11 | 59 | — | — | Available |
| K4YUV | 10 | 61 | — | — | Available |
| K4YUW | 10 | 61 | — | — | Available |
| K4YUX | 10 | 63 | — | — | Available |
| K4YUY | 10 | 65 | 2007-03-05 | 2009-03-06 | Available |
| K4YUZ | 10 | 63 | — | — | Available |
| K4YVA | 9 | 59 | 2004-08-11 | 2006-08-12 | Available |
| K4YVB | 9 | 63 | — | — | Available |
| K4YVC | 9 | 65 | — | — | Available |
| K4YVD | 9 | 61 | — | — | Available |
| K4YVE | 9 | 55 | 1998-03-29 | 2000-03-30 | Available |
| K4YVF | 9 | 63 | — | — | Available |
| K4YVG | 8 | 63 | — | — | Available |
| K4YVH | 9 | 61 | 2016-01-09 | 2018-01-10 | Available |
| K4YVI | 10 | 57 | — | — | Available |
| K4YVJ | 10 | 67 | — | — | Available |
| K4YVK | 9 | 63 | — | — | Available |
| K4YVL | 9 | 63 | — | — | Available |
| K4YVM | 8 | 61 | 2015-03-29 | 2017-03-30 | Available |
| K4YVN | 10 | 59 | — | — | Available |
| K4YVO | 9 | 65 | — | — | Available |
| K4YVP | 9 | 65 | — | — | Available |
| K4YVQ | 9 | 67 | 2010-02-20 | 2012-02-21 | Available |
| K4YVR | 10 | 61 | — | — | Available |
| K4YVS | 10 | 59 | — | — | Available |
| K4YVT | 9 | 57 | 2034-09-13 | — | Active (Vanity) |
| K4YVU | 10 | 61 | — | — | Available |
| K4YVV | 9 | 63 | 2013-09-28 | 2015-09-29 | Available |
| K4YVW | 9 | 63 | — | — | Available |
| K4YVX | 9 | 65 | 2027-11-24 | — | Active |
| K4YVY | 9 | 67 | — | — | Available |
| K4YVZ | 9 | 65 | — | — | Available |
| K4YWA | 9 | 59 | 2026-02-28 | — | Active |
| K4YWB | 9 | 63 | — | — | Available |
| K4YWC | 9 | 65 | 2024-03-05 | 2026-03-06 | Available |
| K4YWD | 9 | 61 | — | — | Available |
| K4YWE | 9 | 55 | 2029-04-21 | — | Active (Vanity) |
| K4YWF | 9 | 63 | 2030-09-15 | — | Active (Vanity) |
| K4YWG | 8 | 63 | — | — | Available |
| K4YWH | 9 | 61 | 2032-06-01 | — | Active (Vanity) |
| K4YWI | 10 | 57 | 2032-02-23 | — | Active (Vanity) |