District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4EWY | 9 | 55 | 2016-05-26 | 2018-05-27 | Available |
| K4EWZ | 9 | 53 | — | — | Available |
| K4EXA | 9 | 49 | 2034-07-30 | — | Active (Vanity) |
| K4EXB | 9 | 53 | 2033-11-30 | — | Active |
| K4EXC | 9 | 55 | 2016-11-16 | 2018-11-17 | Available |
| K4EXD | 9 | 51 | — | — | Available |
| K4EXE | 9 | 45 | 2032-04-12 | — | Active (Vanity) |
| K4EXF | 9 | 53 | 2000-07-17 | 2002-07-18 | Available |
| K4EXG | 8 | 53 | — | — | Available |
| K4EXH | 9 | 51 | 2012-03-08 | 2014-03-09 | Available |
| K4EXI | 10 | 47 | — | — | Available |
| K4EXJ | 10 | 57 | — | — | Available |
| K4EXK | 9 | 53 | — | — | Available |
| K4EXL | 9 | 53 | 2036-09-22 | — | Active (Vanity) |
| K4EXM | 8 | 51 | 2036-04-28 | — | Active (Vanity) |
| K4EXN | 10 | 49 | — | — | Available |
| K4EXO | 9 | 55 | — | — | Available |
| K4EXP | 9 | 55 | 2032-07-09 | — | Active (Vanity) |
| K4EXQ | 9 | 57 | 2016-05-24 | 2018-05-25 | Available |
| K4EXR | 10 | 51 | — | — | Available |
| K4EXS | 10 | 49 | 2031-03-23 | — | Active (Vanity) |
| K4EXT | 9 | 47 | 2032-12-02 | — | Active (Vanity) |
| K4EXU | 10 | 51 | — | — | Available |
| K4EXV | 9 | 53 | 2027-09-18 | — | Active |
| K4EXW | 9 | 53 | 2027-03-18 | — | Active |
| K4EXX | 9 | 55 | 2033-07-15 | — | Active (Vanity) |
| K4EXY | 9 | 57 | — | — | Available |
| K4EXZ | 9 | 55 | — | — | Available |
| K4EYA | 9 | 51 | 2035-12-09 | — | Active (Vanity) |
| K4EYB | 9 | 55 | — | — | Available |
| K4EYC | 9 | 57 | — | — | Available |
| K4EYD | 9 | 53 | — | — | Available |
| K4EYE | 9 | 47 | 2028-01-06 | — | Active (Vanity) |
| K4EYF | 9 | 55 | 2018-08-28 | 2020-08-29 | Available |
| K4EYG | 8 | 55 | 2033-05-05 | — | Active (Vanity) |
| K4EYH | 9 | 53 | 2020-11-04 | 2022-11-05 | Available |
| K4EYI | 10 | 49 | — | — | Available |
| K4EYJ | 10 | 59 | — | — | Available |
| K4EYK | 9 | 55 | — | — | Available |
| K4EYL | 9 | 55 | 2007-01-10 | 2009-01-11 | Available |
| K4EYM | 8 | 53 | 2033-12-14 | — | Active |
| K4EYN | 10 | 51 | — | — | Available |
| K4EYO | 9 | 57 | 2030-12-11 | — | Active (Vanity) |
| K4EYP | 9 | 57 | 2017-07-10 | 2019-07-11 | Available |
| K4EYQ | 9 | 59 | — | — | Available |
| K4EYR | 10 | 53 | 2035-07-25 | — | Active (Vanity) |
| K4EYS | 10 | 51 | 2024-03-05 | 2026-03-06 | Available |
| K4EYT | 9 | 49 | — | — | Available |
| K4EYU | 10 | 53 | — | — | Available |
| K4EYV | 9 | 55 | — | — | Available |
| K4EYW | 9 | 55 | 2014-09-09 | 2016-09-10 | Available |
| K4EYX | 9 | 57 | — | — | Available |
| K4EYY | 9 | 59 | — | — | Available |
| K4EYZ | 9 | 57 | — | — | Available |
| K4EZA | 9 | 49 | 2015-10-24 | 2017-10-25 | Available |
| K4EZB | 9 | 53 | 2026-03-11 | — | Active (Vanity) |
| K4EZC | 9 | 55 | 2011-08-27 | 2013-08-28 | Available |
| K4EZD | 9 | 51 | 2028-07-24 | — | Active (Vanity) |
| K4EZE | 9 | 45 | 2031-11-02 | — | Active (Vanity) |
| K4EZF | 9 | 53 | — | — | Available |
| K4EZG | 8 | 53 | 2027-06-25 | — | Active |
| K4EZH | 9 | 51 | — | — | Available |
| K4EZI | 10 | 47 | 2026-03-17 | 2028-03-18 | Canceled (grace period) |
| K4EZJ | 10 | 57 | — | — | Available |
| K4EZK | 9 | 53 | 2034-05-21 | — | Active (Vanity) |
| K4EZL | 9 | 53 | — | — | Available |
| K4EZM | 8 | 51 | 2036-08-08 | — | Active |
| K4EZN | 10 | 49 | 2008-06-10 | 2010-06-11 | Available |
| K4EZO | 9 | 55 | 2027-08-25 | — | Active (Vanity) |
| K4EZP | 9 | 55 | — | — | Available |
| K4EZQ | 9 | 57 | 2016-03-11 | 2018-03-12 | Available |
| K4EZR | 10 | 51 | 2026-01-03 | 2028-01-04 | Canceled (grace period) |
| K4EZS | 10 | 49 | 2031-02-17 | — | Active (Vanity) |
| K4EZT | 9 | 47 | 2027-06-27 | — | Active (Vanity) |
| K4EZU | 10 | 51 | — | — | Available |
| K4EZV | 9 | 53 | 2005-05-03 | 2007-05-04 | Available |
| K4EZW | 9 | 53 | — | — | Available |
| K4EZX | 9 | 55 | 2036-10-28 | — | Active (Vanity) |
| K4EZY | 9 | 57 | 2033-08-08 | — | Active (Vanity) |
| K4EZZ | 9 | 55 | 2035-02-11 | — | Active (Vanity) |
| K4FAA | 9 | 51 | 2034-05-13 | — | Active (Vanity) |
| K4FAB | 9 | 55 | 2021-09-17 | 2023-09-18 | Available |
| K4FAC | 9 | 57 | 2031-10-05 | — | Active (Vanity) |
| K4FAD | 9 | 53 | 2023-04-30 | 2025-05-01 | Available |
| K4FAE | 9 | 47 | — | — | Available |
| K4FAF | 9 | 55 | 2031-06-22 | — | Active (Vanity) |
| K4FAG | 8 | 55 | — | — | Available |
| K4FAH | 9 | 53 | — | — | Available |
| K4FAI | 10 | 49 | — | — | Available |
| K4FAJ | 10 | 59 | — | — | Available |
| K4FAK | 9 | 55 | — | — | Available |
| K4FAL | 9 | 55 | 2030-05-15 | — | Active (Vanity) |
| K4FAM | 8 | 53 | 2022-05-10 | 2024-05-11 | Available |
| K4FAN | 10 | 51 | 2031-04-06 | — | Active (Vanity) |
| K4FAO | 9 | 57 | 2025-03-31 | — | Active (Vanity) |
| K4FAP | 9 | 57 | 2029-03-10 | — | Active (Vanity) |
| K4FAQ | 9 | 59 | 2032-12-31 | — | Active (Vanity) |
| K4FAR | 10 | 53 | 2034-08-24 | — | Active (Vanity) |
| K4FAS | 10 | 51 | 2023-01-19 | 2025-01-20 | Available |
| K4FAT | 9 | 49 | 2025-03-19 | — | Active (Vanity) |