District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KO4YE | 9 | 57 | 2021-06-28 | 2023-06-29 | Available |
| KO4YF | 9 | 65 | 2033-10-19 | — | Active |
| KO4YG | 8 | 65 | 2022-05-26 | 2024-05-27 | Available |
| KO4YH | 9 | 63 | 2002-06-02 | 2004-06-03 | Available |
| KO4YI | 10 | 59 | 2032-06-02 | — | Active |
| KO4YJ | 10 | 69 | 2022-06-02 | 2024-06-03 | Available |
| KO4YK | 9 | 65 | 2032-06-02 | — | Active |
| KO4YL | 9 | 65 | — | — | Available |
| KO4YM | 8 | 63 | — | — | Available |
| KO4YN | 10 | 61 | 2002-06-02 | 2004-06-03 | Available |
| KO4YO | 9 | 67 | 2006-01-10 | 2008-01-11 | Available |
| KO4YP | 9 | 67 | — | — | Available |
| KO4YQ | 9 | 69 | 2002-05-31 | 2004-06-01 | Available |
| KO4YR | 10 | 63 | 2022-06-02 | 2024-06-03 | Available |
| KO4YS | 10 | 61 | 2002-06-02 | 2004-06-03 | Available |
| KO4YT | 9 | 59 | 2022-06-02 | 2024-06-03 | Available |
| KO4YU | 10 | 63 | 2033-03-16 | — | Active |
| KO4YV | 9 | 65 | — | — | Available |
| KO4YW | 9 | 65 | 2008-03-11 | 2010-03-12 | Available |
| KO4YX | 9 | 67 | 2033-03-02 | — | Active |
| KO4YY | 9 | 69 | — | — | Available |
| KO4YZ | 9 | 67 | 2002-06-09 | 2004-06-10 | Available |
| KO4ZA | 9 | 59 | 2034-02-24 | — | Active |
| KO4ZB | 9 | 63 | 2033-09-14 | — | Active |
| KO4ZC | 9 | 65 | — | — | Available |
| KO4ZD | 9 | 61 | — | — | Available |
| KO4ZE | 9 | 55 | 2031-12-31 | — | Active |
| KO4ZF | 9 | 63 | — | — | Available |
| KO4ZG | 8 | 63 | — | — | Available |
| KO4ZH | 9 | 61 | 2032-06-09 | — | Active |
| KO4ZI | 10 | 57 | 2022-06-09 | 2024-06-10 | Available |
| KO4ZJ | 10 | 67 | 2018-05-22 | 2020-05-23 | Available |
| KO4ZK | 9 | 63 | — | — | Available |
| KO4ZL | 9 | 63 | 2032-06-09 | — | Active |
| KO4ZM | 8 | 61 | 2012-06-09 | 2014-06-10 | Available |
| KO4ZN | 10 | 59 | 2023-09-18 | 2025-09-19 | Available |
| KO4ZO | 9 | 65 | 2001-08-02 | 2003-08-03 | Available |
| KO4ZP | 9 | 65 | — | — | Available |
| KO4ZQ | 9 | 67 | 2004-03-27 | 2006-03-28 | Available |
| KO4ZR | 10 | 61 | 2002-06-09 | 2004-06-10 | Available |
| KO4ZS | 10 | 59 | 2033-08-07 | — | Active |
| KO4ZT | 9 | 57 | 2032-06-09 | — | Active |
| KO4ZU | 10 | 61 | 2022-06-09 | 2024-06-10 | Available |
| KO4ZV | 9 | 63 | 2029-08-22 | — | Active (Vanity) |
| KO4ZW | 9 | 63 | 2002-06-16 | 2004-06-17 | Available |
| KO4ZX | 9 | 65 | 2002-06-16 | 2004-06-17 | Available |
| KO4ZY | 9 | 67 | — | — | Available |
| KO4ZZ | 9 | 65 | 2002-09-15 | 2004-09-16 | Available |
| KQ4AA | 9 | 55 | 2003-08-31 | 2005-09-01 | Available |
| KQ4AB | 9 | 59 | 2032-06-23 | — | Active |
| KQ4AC | 9 | 61 | — | — | Available |
| KQ4AD | 9 | 57 | 2032-06-23 | — | Active |
| KQ4AE | 9 | 51 | 1999-04-21 | 2001-04-22 | Available |
| KQ4AF | 9 | 59 | — | — | Available |
| KQ4AG | 8 | 59 | 2002-06-23 | 2004-06-24 | Available |
| KQ4AH | 9 | 57 | — | — | Available |
| KQ4AI | 10 | 53 | 2002-11-20 | 2004-11-21 | Available |
| KQ4AJ | 10 | 63 | — | — | Available |
| KQ4AK | 9 | 59 | 2022-06-23 | 2024-06-24 | Available |
| KQ4AL | 9 | 59 | 2034-07-30 | — | Active (Vanity) |
| KQ4AM | 8 | 57 | 2035-12-09 | — | Active (Vanity) |
| KQ4AN | 10 | 55 | 2030-03-14 | — | Active (Vanity) |
| KQ4AO | 9 | 61 | 2012-12-27 | 2014-12-28 | Available |
| KQ4AP | 9 | 61 | 2002-06-23 | 2004-06-24 | Available |
| KQ4AQ | 9 | 63 | — | — | Available |
| KQ4AR | 10 | 57 | 2032-06-23 | — | Active |
| KQ4AS | 10 | 55 | — | — | Available |
| KQ4AT | 9 | 53 | 2034-11-30 | — | Active (Vanity) |
| KQ4AU | 10 | 57 | 1998-12-02 | 2000-12-03 | Available |
| KQ4AV | 9 | 59 | 2032-07-27 | — | Active |
| KQ4AW | 9 | 59 | 2012-06-30 | 2014-07-01 | Available |
| KQ4AX | 9 | 61 | 2034-09-28 | — | Active (Vanity) |
| KQ4AY | 9 | 63 | 2002-06-30 | 2004-07-01 | Available |
| KQ4AZ | 9 | 61 | 2035-02-21 | — | Active (Vanity) |
| KQ4BA | 9 | 59 | 2032-06-30 | — | Active |
| KQ4BB | 9 | 63 | 2024-03-05 | 2026-03-06 | Available |
| KQ4BC | 9 | 65 | 2032-06-30 | — | Active |
| KQ4BD | 9 | 61 | 2009-10-27 | 2011-10-28 | Available |
| KQ4BE | 9 | 55 | 1998-11-25 | 2000-11-26 | Available |
| KQ4BF | 9 | 63 | 2012-07-07 | 2014-07-08 | Available |
| KQ4BG | 8 | 63 | 2022-07-07 | 2024-07-08 | Available |
| KQ4BH | 9 | 61 | 2009-11-13 | 2011-11-14 | Available |
| KQ4BI | 10 | 57 | 2013-03-30 | 2015-03-31 | Available |
| KQ4BJ | 10 | 67 | 2022-07-07 | 2024-07-08 | Available |
| KQ4BK | 9 | 63 | 2012-07-07 | 2014-07-08 | Available |
| KQ4BL | 9 | 63 | 2022-07-14 | 2024-07-15 | Available |
| KQ4BM | 8 | 61 | 2001-03-10 | 2003-03-11 | Available |
| KQ4BN | 10 | 59 | 2002-07-14 | 2004-07-15 | Available |
| KQ4BO | 9 | 65 | 2022-10-30 | 2024-10-31 | Available |
| KQ4BP | 9 | 65 | 2022-08-14 | 2024-08-15 | Available |
| KQ4BQ | 9 | 67 | 2012-07-14 | 2014-07-15 | Available |
| KQ4BR | 10 | 61 | 2024-07-08 | 2026-07-09 | Available |
| KQ4BS | 10 | 59 | — | — | Available |
| KQ4BT | 9 | 57 | — | — | Available |
| KQ4BU | 10 | 61 | — | — | Available |
| KQ4BV | 9 | 63 | — | — | Available |
| KQ4BW | 9 | 63 | 2002-02-20 | 2004-02-21 | Available |
| KQ4BX | 9 | 65 | 2032-07-14 | — | Active |
| KQ4BY | 9 | 67 | 2008-01-15 | 2010-01-16 | Available |
| KQ4BZ | 9 | 65 | — | — | Available |