District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4IWU | 11 | 51 | — | — | Available |
| K4IWV | 10 | 53 | 1998-02-09 | 2000-02-10 | Available |
| K4IWW | 10 | 53 | 2035-07-05 | — | Active |
| K4IWX | 10 | 55 | 2024-07-02 | 2026-07-03 | Available |
| K4IWY | 10 | 57 | — | — | Available |
| K4IWZ | 10 | 55 | 2015-01-26 | 2017-01-27 | Available |
| K4IXA | 10 | 51 | 2007-01-07 | 2009-01-08 | Available |
| K4IXB | 10 | 55 | 2015-02-07 | 2017-02-08 | Available |
| K4IXC | 10 | 57 | 2017-02-19 | 2019-02-20 | Available |
| K4IXD | 10 | 53 | — | — | Available |
| K4IXE | 10 | 47 | 2010-02-06 | 2012-02-07 | Available |
| K4IXF | 10 | 55 | — | — | Available |
| K4IXG | 9 | 55 | 2025-01-03 | — | Active (Vanity) |
| K4IXH | 10 | 53 | — | — | Available |
| K4IXI | 11 | 49 | — | — | Available |
| K4IXJ | 11 | 59 | — | — | Available |
| K4IXK | 10 | 55 | — | — | Available |
| K4IXL | 10 | 55 | 2029-08-13 | — | Active (Vanity) |
| K4IXM | 9 | 53 | 2003-04-13 | 2005-04-14 | Available |
| K4IXN | 11 | 51 | 2030-10-23 | — | Active (Vanity) |
| K4IXO | 10 | 57 | 2033-10-17 | — | Active (Vanity) |
| K4IXP | 10 | 57 | 2033-01-21 | — | Active (Vanity) |
| K4IXQ | 10 | 59 | 1997-08-25 | 1999-08-26 | Available |
| K4IXR | 11 | 53 | 2012-03-17 | 2014-03-18 | Available |
| K4IXS | 11 | 51 | 2029-01-11 | — | Active |
| K4IXT | 10 | 49 | — | — | Available |
| K4IXU | 11 | 53 | 2007-01-06 | 2009-01-07 | Available |
| K4IXV | 10 | 55 | — | — | Available |
| K4IXW | 10 | 55 | — | — | Available |
| K4IXX | 10 | 57 | — | — | Available |
| K4IXY | 10 | 59 | — | — | Available |
| K4IXZ | 10 | 57 | — | — | Available |
| K4IYA | 10 | 53 | — | — | Pending Application |
| K4IYB | 10 | 57 | 2023-11-10 | 2025-11-11 | Available |
| K4IYC | 10 | 59 | — | — | Available |
| K4IYD | 10 | 55 | 2023-06-27 | 2025-06-28 | Available |
| K4IYE | 10 | 49 | — | — | Available |
| K4IYF | 10 | 57 | 1997-08-11 | 1999-08-12 | Available |
| K4IYG | 9 | 57 | — | — | Available |
| K4IYH | 10 | 55 | 2007-12-01 | 2009-12-02 | Available |
| K4IYI | 11 | 51 | — | — | Available |
| K4IYJ | 11 | 61 | — | — | Available |
| K4IYK | 10 | 57 | — | — | Available |
| K4IYL | 10 | 57 | — | — | Available |
| K4IYM | 9 | 55 | — | — | Available |
| K4IYN | 11 | 53 | 2033-08-06 | — | Active (Vanity) |
| K4IYO | 10 | 59 | 1998-05-31 | 2000-06-01 | Available |
| K4IYP | 10 | 59 | 2001-04-29 | 2003-04-30 | Available |
| K4IYQ | 10 | 61 | 2003-04-26 | 2005-04-27 | Available |
| K4IYR | 11 | 55 | — | — | Available |
| K4IYS | 11 | 53 | — | — | Available |
| K4IYT | 10 | 51 | — | — | Available |
| K4IYU | 11 | 55 | 2015-03-15 | 2017-03-16 | Available |
| K4IYV | 10 | 57 | 2008-10-23 | 2010-10-24 | Available |
| K4IYW | 10 | 57 | 2013-04-01 | 2015-04-02 | Available |
| K4IYX | 10 | 59 | 2008-10-23 | 2010-10-24 | Available |
| K4IYY | 10 | 61 | — | — | Available |
| K4IYZ | 10 | 59 | — | — | Available |
| K4IZA | 10 | 51 | — | — | Available |
| K4IZB | 10 | 55 | — | — | Available |
| K4IZC | 10 | 57 | 2028-10-23 | — | Active |
| K4IZD | 10 | 53 | — | — | Available |
| K4IZE | 10 | 47 | 2025-03-22 | — | Active |
| K4IZF | 10 | 55 | — | — | Available |
| K4IZG | 9 | 55 | — | — | Available |
| K4IZH | 10 | 53 | — | — | Available |
| K4IZI | 11 | 49 | 2007-12-30 | 2009-12-31 | Available |
| K4IZJ | 11 | 59 | — | — | Available |
| K4IZK | 10 | 55 | — | — | Available |
| K4IZL | 10 | 55 | 2005-07-12 | 2007-07-13 | Available |
| K4IZM | 9 | 53 | 2016-03-14 | 2018-03-15 | Available |
| K4IZN | 11 | 51 | 2029-05-19 | — | Active |
| K4IZO | 10 | 57 | 2018-02-25 | 2020-02-26 | Available |
| K4IZP | 10 | 57 | 2026-09-12 | — | Active (Vanity) |
| K4IZQ | 10 | 59 | — | — | Available |
| K4IZR | 11 | 53 | — | — | Available |
| K4IZS | 11 | 51 | 2027-02-14 | — | Active (Vanity) |
| K4IZT | 10 | 49 | 2035-09-29 | — | Active (Vanity) |
| K4IZU | 11 | 53 | 2011-04-16 | 2013-04-17 | Available |
| K4IZV | 10 | 55 | — | — | Available |
| K4IZW | 10 | 55 | 2031-02-02 | — | Active (Vanity) |
| K4IZX | 10 | 57 | 1998-07-19 | 2000-07-20 | Available |
| K4IZY | 10 | 59 | 2020-02-21 | 2022-02-22 | Available |
| K4IZZ | 10 | 57 | 2033-01-01 | — | Active (Vanity) |
| K4JAA | 10 | 55 | 2015-03-21 | 2017-03-22 | Available |
| K4JAB | 10 | 59 | 2036-11-04 | — | Active |
| K4JAC | 10 | 61 | 2026-03-14 | — | Active |
| K4JAD | 10 | 57 | 2034-12-24 | — | Active |
| K4JAE | 10 | 51 | 2028-03-21 | — | Active (Vanity) |
| K4JAF | 10 | 59 | 2028-03-20 | — | Active |
| K4JAG | 9 | 59 | 2030-08-15 | — | Active (Vanity) |
| K4JAH | 10 | 57 | 2034-01-20 | — | Active (Vanity) |
| K4JAI | 11 | 53 | 2031-09-03 | — | Active |
| K4JAJ | 11 | 63 | 2036-09-27 | — | Active (Vanity) |
| K4JAK | 10 | 59 | 2029-03-27 | — | Active (Vanity) |
| K4JAL | 10 | 59 | 2027-06-30 | — | Active (Vanity) |
| K4JAM | 9 | 57 | 2027-03-02 | — | Active (Vanity) |
| K4JAN | 11 | 55 | 2035-05-15 | — | Active |
| K4JAO | 10 | 61 | 2025-03-06 | — | Active |
| K4JAP | 10 | 61 | — | — | Available |