District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KM4WI | 9 | 51 | 1999-08-08 | 2001-08-09 | Available |
| KM4WJ | 9 | 61 | 2009-08-08 | 2011-08-09 | Available |
| KM4WK | 8 | 57 | 2030-07-13 | — | Active |
| KM4WL | 8 | 57 | — | — | Available |
| KM4WM | 7 | 55 | 2021-09-14 | 2023-09-15 | Available |
| KM4WN | 9 | 53 | 2029-07-15 | — | Active |
| KM4WO | 8 | 59 | — | — | Available |
| KM4WP | 8 | 59 | — | — | Available |
| KM4WQ | 8 | 61 | — | — | Available |
| KM4WR | 9 | 55 | 2009-04-23 | 2011-04-24 | Available |
| KM4WS | 9 | 53 | 2030-12-08 | — | Active (Vanity) |
| KM4WT | 8 | 51 | 2029-02-03 | — | Active |
| KM4WU | 9 | 55 | — | — | Available |
| KM4WV | 8 | 57 | 2000-06-23 | 2002-06-24 | Available |
| KM4WW | 8 | 57 | 2028-02-03 | — | Active (Vanity) |
| KM4WX | 8 | 59 | 2019-04-28 | 2021-04-29 | Available |
| KM4WY | 8 | 61 | — | — | Available |
| KM4WZ | 8 | 59 | 2029-05-28 | — | Active |
| KM4XA | 8 | 55 | 2028-02-19 | — | Active |
| KM4XB | 8 | 59 | 2002-12-10 | 2004-12-11 | Available |
| KM4XC | 8 | 61 | — | — | Available |
| KM4XD | 8 | 57 | 2029-08-29 | — | Active |
| KM4XE | 8 | 51 | 2016-09-09 | 2018-09-10 | Available |
| KM4XF | 8 | 59 | 1999-08-29 | 2001-08-30 | Available |
| KM4XG | 7 | 59 | 2035-07-24 | — | Active |
| KM4XH | 8 | 57 | 1999-08-29 | 2001-08-30 | Available |
| KM4XI | 9 | 53 | 2006-01-10 | 2008-01-11 | Available |
| KM4XJ | 9 | 63 | 1999-09-05 | 2001-09-06 | Available |
| KM4XK | 8 | 59 | 1999-09-05 | 2001-09-06 | Available |
| KM4XL | 8 | 59 | — | — | Available |
| KM4XM | 7 | 57 | 1997-10-17 | 1999-10-18 | Available |
| KM4XN | 9 | 55 | 1999-09-05 | 2001-09-06 | Available |
| KM4XO | 8 | 61 | 2029-05-25 | — | Active |
| KM4XP | 8 | 61 | 2036-07-10 | — | Active (Vanity) |
| KM4XQ | 8 | 63 | 2019-05-21 | 2021-05-22 | Available |
| KM4XR | 9 | 57 | 2019-07-12 | 2021-07-13 | Available |
| KM4XS | 9 | 55 | — | — | Available |
| KM4XT | 8 | 53 | 1999-09-05 | 2001-09-06 | Available |
| KM4XU | 9 | 57 | 2009-11-13 | 2011-11-14 | Available |
| KM4XV | 8 | 59 | — | — | Available |
| KM4XW | 8 | 59 | 2030-10-05 | — | Active |
| KM4XX | 8 | 61 | — | — | Available |
| KM4XY | 8 | 63 | 2031-10-22 | — | Active |
| KM4XZ | 8 | 61 | — | — | Available |
| KM4YA | 8 | 57 | 2013-02-16 | 2015-02-17 | Available |
| KM4YB | 8 | 61 | 2023-02-16 | 2025-02-17 | Available |
| KM4YC | 8 | 63 | 2028-11-03 | — | Active (Vanity) |
| KM4YD | 8 | 59 | 2009-11-13 | 2011-11-14 | Available |
| KM4YE | 8 | 53 | 2019-09-26 | 2021-09-27 | Available |
| KM4YF | 8 | 61 | 2030-10-09 | — | Active |
| KM4YG | 7 | 61 | 2019-08-02 | 2021-08-03 | Available |
| KM4YH | 8 | 59 | 2030-10-02 | — | Active |
| KM4YI | 9 | 55 | 2029-06-01 | — | Active |
| KM4YJ | 9 | 65 | 2009-09-26 | 2011-09-27 | Available |
| KM4YK | 8 | 61 | 2029-07-13 | — | Active |
| KM4YL | 8 | 61 | 2019-09-26 | 2021-09-27 | Available |
| KM4YM | 7 | 59 | — | — | Available |
| KM4YN | 9 | 57 | — | — | Available |
| KM4YO | 8 | 63 | 2034-12-03 | — | Active (Vanity) |
| KM4YP | 8 | 63 | 2028-12-17 | — | Active |
| KM4YQ | 8 | 65 | 2011-08-07 | 2013-08-08 | Available |
| KM4YR | 9 | 59 | 2019-06-15 | 2021-06-16 | Available |
| KM4YS | 9 | 57 | 2001-08-11 | 2003-08-12 | Available |
| KM4YT | 8 | 55 | 1999-06-15 | 2001-06-16 | Available |
| KM4YU | 9 | 59 | 2022-12-15 | 2024-12-16 | Available |
| KM4YV | 8 | 61 | — | — | Available |
| KM4YW | 8 | 61 | 2029-10-03 | — | Active |
| KM4YX | 8 | 63 | 1999-10-10 | 2001-10-11 | Available |
| KM4YY | 8 | 65 | 2029-06-16 | — | Active |
| KM4YZ | 8 | 63 | 2009-06-18 | 2011-06-19 | Available |
| KM4ZA | 8 | 55 | 2009-11-30 | 2011-12-01 | Available |
| KM4ZB | 8 | 59 | 2009-06-14 | 2011-06-15 | Available |
| KM4ZC | 8 | 61 | — | — | Available |
| KM4ZD | 8 | 57 | — | — | Available |
| KM4ZE | 8 | 51 | 1999-10-10 | 2001-10-11 | Available |
| KM4ZF | 8 | 59 | — | — | Available |
| KM4ZG | 7 | 59 | — | — | Available |
| KM4ZH | 8 | 57 | 2029-10-10 | — | Active |
| KM4ZI | 9 | 53 | 2000-12-18 | 2002-12-19 | Available |
| KM4ZJ | 9 | 63 | — | — | Available |
| KM4ZK | 8 | 59 | 2005-02-26 | 2007-02-27 | Available |
| KM4ZL | 8 | 59 | 2034-01-18 | — | Active |
| KM4ZM | 7 | 57 | 2026-03-25 | — | Active (Vanity) |
| KM4ZN | 9 | 55 | 2019-02-23 | 2021-02-24 | Available |
| KM4ZO | 8 | 61 | 2005-02-01 | 2007-02-02 | Available |
| KM4ZP | 8 | 61 | 2019-10-17 | 2021-10-18 | Available |
| KM4ZQ | 8 | 63 | 2030-11-09 | — | Active |
| KM4ZR | 9 | 57 | 2029-12-02 | — | Active |
| KM4ZS | 9 | 55 | 2027-05-23 | — | Active (Vanity) |
| KM4ZT | 8 | 53 | 2031-02-05 | — | Active (Vanity) |
| KM4ZU | 9 | 57 | 2021-04-02 | 2023-04-03 | Available |
| KM4ZV | 8 | 59 | 2000-07-07 | 2002-07-08 | Available |
| KM4ZW | 8 | 59 | 1999-10-31 | 2001-11-01 | Available |
| KM4ZX | 8 | 61 | 1999-10-31 | 2001-11-01 | Available |
| KM4ZY | 8 | 63 | 2020-10-02 | 2022-10-03 | Available |
| KM4ZZ | 8 | 61 | 2035-09-29 | — | Active (Vanity) |
| KN4AA | 10 | 47 | 2021-02-23 | 2023-02-24 | Available |
| KN4AB | 10 | 51 | 2002-01-10 | 2004-01-11 | Available |
| KN4AC | 10 | 53 | 2029-03-11 | — | Active |
| KN4AD | 10 | 49 | 2019-11-07 | 2021-11-08 | Available |