District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KD4XO | 9 | 61 | 2006-05-23 | 2008-05-24 | Available |
| KD4XP | 9 | 61 | — | — | Available |
| KD4XQ | 9 | 63 | 2007-12-18 | 2009-12-19 | Available |
| KD4XR | 10 | 57 | 2027-05-27 | — | Active |
| KD4XS | 10 | 55 | 2031-10-01 | — | Active |
| KD4XT | 9 | 53 | 2031-01-05 | — | Active (Vanity) |
| KD4XU | 10 | 57 | 2031-03-02 | — | Active (Vanity) |
| KD4XV | 9 | 59 | 2036-05-28 | — | Active |
| KD4XW | 9 | 59 | 2006-04-15 | 2008-04-16 | Available |
| KD4XX | 9 | 61 | 2022-03-23 | 2024-03-24 | Available |
| KD4XY | 9 | 63 | 1999-02-04 | 2001-02-05 | Available |
| KD4XZ | 9 | 61 | 1999-03-11 | 2001-03-12 | Available |
| KD4YA | 9 | 57 | — | — | Available |
| KD4YB | 9 | 61 | 2016-10-09 | 2018-10-10 | Available |
| KD4YC | 9 | 63 | — | — | Available |
| KD4YD | 9 | 59 | 2007-07-24 | 2009-07-25 | Available |
| KD4YE | 9 | 53 | 2026-07-27 | — | Active |
| KD4YF | 9 | 61 | 2016-04-15 | 2018-04-16 | Available |
| KD4YG | 8 | 61 | — | — | Available |
| KD4YH | 9 | 59 | 2002-03-08 | 2004-03-09 | Available |
| KD4YI | 10 | 55 | 2004-02-03 | 2006-02-04 | Available |
| KD4YJ | 10 | 65 | 2036-03-18 | — | Active |
| KD4YK | 9 | 61 | — | — | Available |
| KD4YL | 9 | 61 | 2024-11-03 | 2026-11-04 | Available |
| KD4YM | 8 | 59 | — | — | Available |
| KD4YN | 10 | 57 | 2017-03-02 | 2019-03-03 | Available |
| KD4YO | 9 | 63 | 2022-06-02 | 2024-06-03 | Available |
| KD4YP | 9 | 63 | 2002-05-22 | 2004-05-23 | Available |
| KD4YQ | 9 | 65 | 2011-03-05 | 2013-03-06 | Available |
| KD4YR | 10 | 59 | — | — | Available |
| KD4YS | 10 | 57 | 2024-09-07 | 2026-09-08 | Available |
| KD4YT | 9 | 55 | 2034-11-22 | — | Active (Vanity) |
| KD4YU | 10 | 59 | — | — | Available |
| KD4YV | 9 | 61 | 2006-04-04 | 2008-04-05 | Available |
| KD4YW | 9 | 61 | — | — | Available |
| KD4YX | 9 | 63 | 2024-03-19 | 2026-03-20 | Available |
| KD4YY | 9 | 65 | 1998-07-19 | 2000-07-20 | Available |
| KD4YZ | 9 | 63 | — | — | Available |
| KD4ZA | 9 | 55 | — | — | Available |
| KD4ZB | 9 | 59 | 2036-03-28 | — | Active |
| KD4ZC | 9 | 61 | — | — | Available |
| KD4ZD | 9 | 57 | 2001-07-07 | 2003-07-08 | Available |
| KD4ZE | 9 | 51 | — | — | Available |
| KD4ZF | 9 | 59 | — | — | Available |
| KD4ZG | 8 | 59 | 2015-12-04 | 2017-12-05 | Available |
| KD4ZH | 9 | 57 | 2026-06-04 | — | Active |
| KD4ZI | 10 | 53 | 2007-05-05 | 2009-05-06 | Available |
| KD4ZJ | 10 | 63 | 2008-12-10 | 2010-12-11 | Available |
| KD4ZK | 9 | 59 | — | — | Available |
| KD4ZL | 9 | 59 | 2012-03-31 | 2014-04-01 | Available |
| KD4ZM | 8 | 57 | — | — | Available |
| KD4ZN | 10 | 55 | — | — | Available |
| KD4ZO | 9 | 61 | 1998-07-15 | 2000-07-16 | Available |
| KD4ZP | 9 | 61 | 2012-01-17 | 2014-01-18 | Available |
| KD4ZQ | 9 | 63 | — | — | Available |
| KD4ZR | 10 | 57 | 2006-08-07 | 2008-08-08 | Available |
| KD4ZS | 10 | 55 | 2016-05-13 | 2018-05-14 | Available |
| KD4ZT | 9 | 53 | — | — | Available |
| KD4ZU | 10 | 57 | 2025-07-18 | — | Active |
| KD4ZV | 9 | 59 | — | — | Available |
| KD4ZW | 9 | 59 | 2030-10-06 | — | Active |
| KD4ZX | 9 | 61 | 2027-03-13 | — | Active |
| KD4ZY | 9 | 63 | 2002-06-23 | 2004-06-24 | Available |
| KD4ZZ | 9 | 61 | 2032-12-13 | — | Active (Vanity) |
| KE4AA | 9 | 43 | 2036-04-19 | — | Active |
| KE4AB | 9 | 47 | — | — | Available |
| KE4AC | 9 | 49 | 2036-05-06 | — | Active |
| KE4AD | 9 | 45 | — | — | Available |
| KE4AE | 9 | 39 | 2016-12-26 | 2018-12-27 | Available |
| KE4AF | 9 | 47 | 2007-02-13 | 2009-02-14 | Available |
| KE4AG | 8 | 47 | 2022-03-24 | 2024-03-25 | Available |
| KE4AH | 9 | 45 | 2023-08-20 | 2025-08-21 | Available |
| KE4AI | 10 | 41 | 2026-07-19 | — | Active |
| KE4AJ | 10 | 51 | 2026-12-15 | — | Active |
| KE4AK | 9 | 47 | 2031-01-15 | — | Active |
| KE4AL | 9 | 47 | 2026-04-12 | — | Active (Vanity) |
| KE4AM | 8 | 45 | 2027-03-18 | — | Active |
| KE4AN | 10 | 43 | — | — | Available |
| KE4AO | 9 | 49 | — | — | Available |
| KE4AP | 9 | 49 | 2031-01-18 | — | Active |
| KE4AQ | 9 | 51 | — | — | Available |
| KE4AR | 10 | 45 | 2025-11-28 | — | Active |
| KE4AS | 10 | 43 | 2007-03-26 | 2009-03-27 | Available |
| KE4AT | 9 | 41 | 2011-11-04 | 2013-11-05 | Available |
| KE4AU | 10 | 45 | 2006-09-11 | 2008-09-12 | Available |
| KE4AV | 9 | 47 | — | — | Available |
| KE4AW | 9 | 47 | — | — | Available |
| KE4AX | 9 | 49 | 2026-12-19 | — | Active |
| KE4AY | 9 | 51 | — | — | Available |
| KE4AZ | 9 | 49 | 2024-04-30 | 2026-05-01 | Available |
| KE4BA | 9 | 47 | 2027-03-26 | — | Active |
| KE4BB | 9 | 51 | 2028-07-17 | — | Active |
| KE4BC | 9 | 53 | 2034-07-02 | — | Active (Vanity) |
| KE4BD | 9 | 49 | 2033-10-06 | — | Active (Vanity) |
| KE4BE | 9 | 43 | 2024-03-29 | 2026-03-30 | Available |
| KE4BF | 9 | 51 | 2036-07-29 | — | Active |
| KE4BG | 8 | 51 | — | — | Available |
| KE4BH | 9 | 49 | — | — | Available |
| KE4BI | 10 | 45 | 2026-06-19 | — | Active |
| KE4BJ | 10 | 55 | — | — | Available |