District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4YWJ | 10 | 67 | 2007-04-23 | 2009-04-24 | Available |
| K4YWK | 9 | 63 | 1997-09-01 | 1999-09-02 | Available |
| K4YWL | 9 | 63 | 2006-07-26 | 2008-07-27 | Available |
| K4YWM | 8 | 61 | 2036-06-19 | — | Active |
| K4YWN | 10 | 59 | — | — | Available |
| K4YWO | 9 | 65 | — | — | Available |
| K4YWP | 9 | 65 | — | — | Available |
| K4YWQ | 9 | 67 | — | — | Available |
| K4YWR | 10 | 61 | — | — | Available |
| K4YWS | 10 | 59 | 2006-06-10 | 2008-06-11 | Available |
| K4YWT | 9 | 57 | — | — | Available |
| K4YWU | 10 | 61 | — | — | Available |
| K4YWV | 9 | 63 | 2025-11-28 | — | Active |
| K4YWW | 9 | 63 | — | — | Available |
| K4YWX | 9 | 65 | — | — | Available |
| K4YWY | 9 | 67 | 2032-04-19 | — | Active (Vanity) |
| K4YWZ | 9 | 65 | 2019-01-01 | 2021-01-02 | Available |
| K4YXA | 9 | 61 | — | — | Available |
| K4YXB | 9 | 65 | 2027-11-28 | — | Active (Vanity) |
| K4YXC | 9 | 67 | — | — | Available |
| K4YXD | 9 | 63 | — | — | Available |
| K4YXE | 9 | 57 | 2015-12-14 | 2017-12-15 | Available |
| K4YXF | 9 | 65 | — | — | Available |
| K4YXG | 8 | 65 | — | — | Available |
| K4YXH | 9 | 63 | — | — | Available |
| K4YXI | 10 | 59 | 2002-01-24 | 2004-01-25 | Available |
| K4YXJ | 10 | 69 | 2022-09-25 | 2024-09-26 | Available |
| K4YXK | 9 | 65 | — | — | Available |
| K4YXL | 9 | 65 | — | — | Available |
| K4YXM | 8 | 63 | 2033-05-24 | — | Active (Vanity) |
| K4YXN | 10 | 61 | — | — | Available |
| K4YXO | 9 | 67 | 2008-04-03 | 2010-04-04 | Available |
| K4YXP | 9 | 67 | 2032-03-26 | — | Active (Vanity) |
| K4YXQ | 9 | 69 | 2025-06-07 | — | Active |
| K4YXR | 10 | 63 | — | — | Available |
| K4YXS | 10 | 61 | — | — | Available |
| K4YXT | 9 | 59 | 2007-12-09 | 2009-12-10 | Available |
| K4YXU | 10 | 63 | 2027-08-26 | — | Active |
| K4YXV | 9 | 65 | 2007-02-11 | 2009-02-12 | Available |
| K4YXW | 9 | 65 | — | — | Available |
| K4YXX | 9 | 67 | 2032-05-21 | — | Active (Vanity) |
| K4YXY | 9 | 69 | 2029-07-27 | — | Active |
| K4YXZ | 9 | 67 | — | — | Available |
| K4YYA | 9 | 63 | — | — | Available |
| K4YYB | 9 | 67 | 2003-08-31 | 2005-09-01 | Available |
| K4YYC | 9 | 69 | — | — | Available |
| K4YYD | 9 | 65 | 2028-03-18 | — | Active (Vanity) |
| K4YYE | 9 | 59 | — | — | Available |
| K4YYF | 9 | 67 | 1997-10-14 | 1999-10-15 | Available |
| K4YYG | 8 | 67 | — | — | Available |
| K4YYH | 9 | 65 | 2023-05-14 | 2025-05-15 | Available |
| K4YYI | 10 | 61 | — | — | Available |
| K4YYJ | 10 | 71 | — | — | Available |
| K4YYK | 9 | 67 | — | — | Available |
| K4YYL | 9 | 67 | 2033-12-14 | — | Active |
| K4YYM | 8 | 65 | 2024-05-23 | 2026-05-24 | Available |
| K4YYN | 10 | 63 | — | — | Available |
| K4YYO | 9 | 69 | 2008-05-13 | 2010-05-14 | Available |
| K4YYP | 9 | 69 | — | — | Available |
| K4YYQ | 9 | 71 | — | — | Available |
| K4YYR | 10 | 65 | 2027-02-12 | — | Active (Vanity) |
| K4YYS | 10 | 63 | — | — | Available |
| K4YYT | 9 | 61 | 2003-12-14 | 2005-12-15 | Available |
| K4YYU | 10 | 65 | — | — | Available |
| K4YYV | 9 | 67 | 2015-05-10 | 2017-05-11 | Available |
| K4YYW | 9 | 67 | — | — | Available |
| K4YYX | 9 | 69 | 2030-09-11 | — | Active |
| K4YYY | 9 | 71 | 2030-06-25 | — | Active (Vanity) |
| K4YYZ | 9 | 69 | 2035-02-10 | — | Active (Vanity) |
| K4YZA | 9 | 61 | 2026-11-19 | — | Active |
| K4YZB | 9 | 65 | 2027-10-14 | — | Active |
| K4YZC | 9 | 67 | — | — | Available |
| K4YZD | 9 | 63 | 2017-11-19 | 2019-11-20 | Available |
| K4YZE | 9 | 57 | 2015-03-21 | 2017-03-22 | Available |
| K4YZF | 9 | 65 | 2009-06-07 | 2011-06-08 | Available |
| K4YZG | 8 | 65 | 2031-11-01 | — | Active (Vanity) |
| K4YZH | 9 | 63 | — | — | Available |
| K4YZI | 10 | 59 | 2030-09-18 | — | Active (Vanity) |
| K4YZJ | 10 | 69 | 2034-03-23 | — | Active (Vanity) |
| K4YZK | 9 | 65 | 2015-12-06 | 2017-12-07 | Available |
| K4YZL | 9 | 65 | — | — | Available |
| K4YZM | 8 | 63 | — | — | Available |
| K4YZN | 10 | 61 | 2031-11-13 | — | Active (Vanity) |
| K4YZO | 9 | 67 | — | — | Available |
| K4YZP | 9 | 67 | 2032-04-16 | — | Active (Vanity) |
| K4YZQ | 9 | 69 | — | — | Available |
| K4YZR | 10 | 63 | 2028-05-08 | — | Active |
| K4YZS | 10 | 61 | — | — | Available |
| K4YZT | 9 | 59 | 2036-04-01 | — | Active |
| K4YZU | 10 | 63 | — | — | Available |
| K4YZV | 9 | 65 | 2010-05-21 | 2012-05-22 | Available |
| K4YZW | 9 | 65 | — | — | Available |
| K4YZX | 9 | 67 | 2030-04-14 | — | Active (Vanity) |
| K4YZY | 9 | 69 | 2026-07-02 | — | Active (Vanity) |
| K4YZZ | 9 | 67 | 2032-06-19 | — | Active (Vanity) |
| K4ZAA | 9 | 53 | 2034-01-20 | — | Active (Vanity) |
| K4ZAB | 9 | 57 | 2028-04-28 | — | Active (Vanity) |
| K4ZAC | 9 | 59 | 2032-01-28 | — | Active (Vanity) |
| K4ZAD | 9 | 55 | 2027-10-27 | — | Active |
| K4ZAE | 9 | 49 | 2004-05-10 | 2006-05-11 | Available |