District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4ZTL | 9 | 55 | 2036-04-17 | — | Active (Vanity) |
| K4ZTM | 8 | 53 | 2029-04-17 | — | Active (Vanity) |
| K4ZTN | 10 | 51 | — | — | Available |
| K4ZTO | 9 | 57 | — | — | Available |
| K4ZTP | 9 | 57 | 2016-11-18 | 2018-11-19 | Available |
| K4ZTQ | 9 | 59 | — | — | Available |
| K4ZTR | 10 | 53 | 2015-09-05 | 2017-09-06 | Available |
| K4ZTS | 10 | 51 | — | — | Available |
| K4ZTT | 9 | 49 | 2024-03-05 | 2026-03-06 | Available |
| K4ZTU | 10 | 53 | — | — | Available |
| K4ZTV | 9 | 55 | 2035-03-27 | — | Active |
| K4ZTW | 9 | 55 | 2034-09-06 | — | Active (Vanity) |
| K4ZTX | 9 | 57 | 2035-10-16 | — | Active (Vanity) |
| K4ZTY | 9 | 59 | — | — | Available |
| K4ZTZ | 9 | 57 | 2034-09-07 | — | Active (Vanity) |
| K4ZUA | 10 | 55 | — | — | Available |
| K4ZUB | 10 | 59 | — | — | Available |
| K4ZUC | 10 | 61 | — | — | Available |
| K4ZUD | 10 | 57 | 2036-03-21 | — | Active |
| K4ZUE | 10 | 51 | — | — | Available |
| K4ZUF | 10 | 59 | — | — | Available |
| K4ZUG | 9 | 59 | — | — | Available |
| K4ZUH | 10 | 57 | — | — | Available |
| K4ZUI | 11 | 53 | 1998-10-25 | 2000-10-26 | Available |
| K4ZUJ | 11 | 63 | 2016-07-05 | 2018-07-06 | Available |
| K4ZUK | 10 | 59 | 2027-11-21 | — | Active (Vanity) |
| K4ZUL | 10 | 59 | 2034-04-05 | — | Active |
| K4ZUM | 9 | 57 | 2033-05-16 | — | Active (Vanity) |
| K4ZUN | 11 | 55 | — | — | Available |
| K4ZUO | 10 | 61 | — | — | Available |
| K4ZUP | 10 | 61 | — | — | Available |
| K4ZUQ | 10 | 63 | — | — | Available |
| K4ZUR | 11 | 57 | — | — | Available |
| K4ZUS | 11 | 55 | — | — | Available |
| K4ZUT | 10 | 53 | 2028-01-07 | — | Active (Vanity) |
| K4ZUU | 11 | 57 | — | — | Available |
| K4ZUV | 10 | 59 | — | — | Available |
| K4ZUW | 10 | 59 | 2033-11-14 | — | Active (Vanity) |
| K4ZUX | 10 | 61 | 2035-06-28 | — | Active |
| K4ZUY | 10 | 63 | 2033-04-18 | — | Active (Vanity) |
| K4ZUZ | 10 | 61 | 2035-08-15 | — | Active (Vanity) |
| K4ZVA | 9 | 57 | — | — | Available |
| K4ZVB | 9 | 61 | — | — | Available |
| K4ZVC | 9 | 63 | 2027-07-21 | — | Active (Vanity) |
| K4ZVD | 9 | 59 | 2022-10-27 | 2024-10-28 | Available |
| K4ZVE | 9 | 53 | — | — | Available |
| K4ZVF | 9 | 61 | — | — | Available |
| K4ZVG | 8 | 61 | 2034-09-17 | — | Active (Vanity) |
| K4ZVH | 9 | 59 | — | — | Available |
| K4ZVI | 10 | 55 | — | — | Available |
| K4ZVJ | 10 | 65 | — | — | Available |
| K4ZVK | 9 | 61 | 2036-05-22 | — | Active |
| K4ZVL | 9 | 61 | 2036-04-16 | — | Active |
| K4ZVM | 8 | 59 | 2014-11-23 | 2016-11-24 | Available |
| K4ZVN | 10 | 57 | — | — | Available |
| K4ZVO | 9 | 63 | 2029-07-09 | — | Active |
| K4ZVP | 9 | 63 | 2028-02-27 | — | Active |
| K4ZVQ | 9 | 65 | 2016-04-23 | 2018-04-24 | Available |
| K4ZVR | 10 | 59 | — | — | Available |
| K4ZVS | 10 | 57 | — | — | Available |
| K4ZVT | 9 | 55 | 2031-04-03 | — | Active (Vanity) |
| K4ZVU | 10 | 59 | 2026-12-18 | — | Active (Vanity) |
| K4ZVV | 9 | 61 | — | — | Available |
| K4ZVW | 9 | 61 | — | — | Available |
| K4ZVX | 9 | 63 | — | — | Available |
| K4ZVY | 9 | 65 | 2030-12-22 | — | Active (Vanity) |
| K4ZVZ | 9 | 63 | 2030-05-12 | — | Active (Vanity) |
| K4ZWA | 9 | 57 | — | — | Available |
| K4ZWB | 9 | 61 | 2008-07-22 | 2010-07-23 | Available |
| K4ZWC | 9 | 63 | 2030-11-17 | — | Active (Vanity) |
| K4ZWD | 9 | 59 | — | — | Available |
| K4ZWE | 9 | 53 | — | — | Available |
| K4ZWF | 9 | 61 | — | — | Available |
| K4ZWG | 8 | 61 | 2015-07-26 | 2017-07-27 | Available |
| K4ZWH | 9 | 59 | — | — | Available |
| K4ZWI | 10 | 55 | — | — | Available |
| K4ZWJ | 10 | 65 | — | — | Available |
| K4ZWK | 9 | 61 | — | — | Available |
| K4ZWL | 9 | 61 | — | — | Available |
| K4ZWM | 8 | 59 | — | — | Available |
| K4ZWN | 10 | 57 | — | — | Available |
| K4ZWO | 9 | 63 | 2031-05-14 | — | Active (Vanity) |
| K4ZWP | 9 | 63 | — | — | Available |
| K4ZWQ | 9 | 65 | — | — | Available |
| K4ZWR | 10 | 59 | — | — | Available |
| K4ZWS | 10 | 57 | — | — | Available |
| K4ZWT | 9 | 55 | — | — | Available |
| K4ZWU | 10 | 59 | — | — | Available |
| K4ZWV | 9 | 61 | 2017-10-06 | 2019-10-07 | Available |
| K4ZWW | 9 | 61 | 2034-11-19 | — | Active (Vanity) |
| K4ZWX | 9 | 63 | — | — | Available |
| K4ZWY | 9 | 65 | — | — | Available |
| K4ZWZ | 9 | 63 | 2028-12-21 | — | Active (Vanity) |
| K4ZXA | 9 | 59 | — | — | Available |
| K4ZXB | 9 | 63 | 2026-06-07 | — | Active (Vanity) |
| K4ZXC | 9 | 65 | — | — | Available |
| K4ZXD | 9 | 61 | 2031-10-19 | — | Active (Vanity) |
| K4ZXE | 9 | 55 | — | — | Available |
| K4ZXF | 9 | 63 | — | — | Available |
| K4ZXG | 8 | 63 | — | — | Available |