District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KC4WQ | 9 | 65 | 2036-03-14 | — | Active |
| KC4WR | 10 | 59 | — | — | Available |
| KC4WS | 10 | 57 | — | — | Available |
| KC4WT | 9 | 55 | 2034-10-19 | — | Active (Vanity) |
| KC4WU | 10 | 59 | 2009-04-17 | 2011-04-18 | Available |
| KC4WV | 9 | 61 | 2035-04-25 | — | Active |
| KC4WW | 9 | 61 | 2034-06-15 | — | Active (Vanity) |
| KC4WX | 9 | 63 | 2036-02-19 | — | Active (Vanity) |
| KC4WY | 9 | 65 | 2002-11-17 | 2004-11-18 | Available |
| KC4WZ | 9 | 63 | 2004-04-05 | 2006-04-06 | Available |
| KC4XA | 9 | 59 | 2005-07-21 | 2007-07-22 | Available |
| KC4XB | 9 | 63 | — | — | Available |
| KC4XC | 9 | 65 | 2008-04-24 | 2010-04-25 | Available |
| KC4XD | 9 | 61 | — | — | Available |
| KC4XE | 9 | 55 | 2015-10-18 | 2017-10-19 | Available |
| KC4XF | 9 | 63 | — | — | Available |
| KC4XG | 8 | 63 | 2006-01-11 | 2008-01-12 | Available |
| KC4XH | 9 | 61 | 2031-07-23 | — | Active |
| KC4XI | 10 | 57 | — | — | Available |
| KC4XJ | 10 | 67 | 2026-05-22 | — | Active |
| KC4XK | 9 | 63 | 2026-03-14 | — | Active |
| KC4XL | 9 | 63 | 2028-11-09 | — | Active (Vanity) |
| KC4XM | 8 | 61 | — | — | Available |
| KC4XN | 10 | 59 | — | — | Available |
| KC4XO | 9 | 65 | 2032-02-18 | — | Active (Vanity) |
| KC4XP | 9 | 65 | 1999-12-12 | 2001-12-13 | Available |
| KC4XQ | 9 | 67 | 2016-04-26 | 2018-04-27 | Available |
| KC4XR | 10 | 61 | — | — | Available |
| KC4XS | 10 | 59 | 2023-02-09 | 2025-02-10 | Available |
| KC4XT | 9 | 57 | 2024-03-22 | 2026-03-23 | Available |
| KC4XU | 10 | 61 | 2023-02-22 | 2025-02-23 | Available |
| KC4XV | 9 | 63 | — | — | Available |
| KC4XW | 9 | 63 | — | — | Available |
| KC4XX | 9 | 65 | 2031-01-29 | — | Active |
| KC4XY | 9 | 67 | — | — | Available |
| KC4XZ | 9 | 65 | 2000-05-15 | 2002-05-16 | Available |
| KC4YA | 9 | 61 | 2016-03-26 | 2018-03-27 | Available |
| KC4YB | 9 | 65 | 2004-05-03 | 2006-05-04 | Available |
| KC4YC | 9 | 67 | 2006-01-31 | 2008-02-01 | Available |
| KC4YD | 9 | 63 | — | — | Available |
| KC4YE | 9 | 57 | 2011-03-26 | 2013-03-27 | Available |
| KC4YF | 9 | 65 | 2003-07-09 | 2005-07-10 | Available |
| KC4YG | 8 | 65 | 2009-08-28 | 2011-08-29 | Available |
| KC4YH | 9 | 63 | — | — | Available |
| KC4YI | 10 | 59 | 2010-12-03 | 2012-12-04 | Available |
| KC4YJ | 10 | 69 | 2024-07-22 | 2026-07-23 | Available |
| KC4YK | 9 | 65 | 2026-01-31 | — | Active |
| KC4YL | 9 | 65 | — | — | Available |
| KC4YM | 8 | 63 | 1997-10-16 | 1999-10-17 | Available |
| KC4YN | 10 | 61 | — | — | Available |
| KC4YO | 9 | 67 | 1998-10-28 | 2000-10-29 | Available |
| KC4YP | 9 | 67 | 2016-02-15 | 2018-02-16 | Available |
| KC4YQ | 9 | 69 | — | — | Available |
| KC4YR | 10 | 63 | 2011-04-16 | 2013-04-17 | Available |
| KC4YS | 10 | 61 | 2005-11-28 | 2007-11-29 | Available |
| KC4YT | 9 | 59 | 2035-11-28 | — | Active |
| KC4YU | 10 | 63 | — | — | Available |
| KC4YV | 9 | 65 | 2036-02-28 | — | Active |
| KC4YW | 9 | 65 | — | — | Available |
| KC4YX | 9 | 67 | — | — | Available |
| KC4YY | 9 | 69 | — | — | Available |
| KC4YZ | 9 | 67 | — | — | Available |
| KC4ZA | 9 | 59 | 2036-03-20 | — | Active |
| KC4ZB | 9 | 63 | 2005-11-28 | 2007-11-29 | Available |
| KC4ZC | 9 | 65 | 2006-03-26 | 2008-03-27 | Available |
| KC4ZD | 9 | 61 | 2007-12-22 | 2009-12-23 | Available |
| KC4ZE | 9 | 55 | — | — | Available |
| KC4ZF | 9 | 63 | 2018-12-04 | 2020-12-05 | Available |
| KC4ZG | 8 | 63 | 2000-02-11 | 2002-02-12 | Available |
| KC4ZH | 9 | 61 | 2022-02-18 | 2024-02-19 | Available |
| KC4ZI | 10 | 57 | 2006-05-02 | 2008-05-03 | Available |
| KC4ZJ | 10 | 67 | 2028-04-01 | — | Active |
| KC4ZK | 9 | 63 | — | — | Available |
| KC4ZL | 9 | 63 | — | — | Available |
| KC4ZM | 8 | 61 | — | — | Available |
| KC4ZN | 10 | 59 | — | — | Available |
| KC4ZO | 9 | 65 | 2016-11-14 | 2018-11-15 | Available |
| KC4ZP | 9 | 65 | — | — | Available |
| KC4ZQ | 9 | 67 | 1997-09-17 | 1999-09-18 | Available |
| KC4ZR | 10 | 61 | 2017-07-24 | 2019-07-25 | Available |
| KC4ZS | 10 | 59 | 2036-01-22 | — | Active |
| KC4ZT | 9 | 57 | — | — | Available |
| KC4ZU | 10 | 61 | — | — | Available |
| KC4ZV | 9 | 63 | 2029-03-25 | — | Active (Vanity) |
| KC4ZW | 9 | 63 | 2026-11-21 | — | Active |
| KC4ZX | 9 | 65 | 2027-05-09 | — | Active (Vanity) |
| KC4ZY | 9 | 67 | 2012-07-21 | 2014-07-22 | Available |
| KC4ZZ | 9 | 65 | 2007-07-10 | 2009-07-11 | Available |
| KD4AA | 9 | 49 | 2036-02-07 | — | Active |
| KD4AB | 9 | 53 | 2033-06-01 | — | Active |
| KD4AC | 9 | 55 | 2009-03-13 | 2011-03-14 | Available |
| KD4AD | 9 | 51 | 2015-11-28 | 2017-11-29 | Available |
| KD4AE | 9 | 45 | 2035-03-15 | — | Active |
| KD4AF | 9 | 53 | 2028-04-27 | — | Active |
| KD4AG | 8 | 53 | 2022-02-14 | 2024-02-15 | Available |
| KD4AH | 9 | 51 | 2027-03-20 | — | Active |
| KD4AI | 10 | 47 | 2029-03-02 | — | Active |
| KD4AJ | 10 | 57 | 2025-04-22 | — | Active |
| KD4AK | 9 | 53 | 2023-02-23 | 2025-02-24 | Available |
| KD4AL | 9 | 53 | 2035-02-23 | — | Active (Vanity) |