District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KU4YY | 10 | 65 | 2034-12-24 | — | Active |
| KU4YZ | 10 | 63 | 2000-04-18 | 2002-04-19 | Available |
| KU4ZA | 10 | 55 | 2017-07-07 | 2019-07-08 | Available |
| KU4ZB | 10 | 59 | 2027-12-17 | — | Active |
| KU4ZC | 10 | 61 | 1999-06-24 | 2001-06-25 | Available |
| KU4ZD | 10 | 57 | 2023-08-31 | 2025-09-01 | Available |
| KU4ZE | 10 | 51 | 1999-05-27 | 2001-05-28 | Available |
| KU4ZF | 10 | 59 | 2027-02-11 | — | Active |
| KU4ZG | 9 | 59 | 2018-11-24 | 2020-11-25 | Available |
| KU4ZH | 10 | 57 | 2022-04-21 | 2024-04-22 | Available |
| KU4ZI | 11 | 53 | 1999-05-25 | 2001-05-26 | Available |
| KU4ZJ | 11 | 63 | 2029-02-03 | — | Active |
| KU4ZK | 10 | 59 | 2028-05-20 | — | Active |
| KU4ZL | 10 | 59 | 2019-04-05 | 2021-04-06 | Available |
| KU4ZM | 9 | 57 | 2000-05-11 | 2002-05-12 | Available |
| KU4ZN | 11 | 55 | 2020-06-26 | 2022-06-27 | Available |
| KU4ZO | 10 | 61 | 2036-03-16 | — | Active |
| KU4ZP | 10 | 61 | 2032-02-25 | — | Active |
| KU4ZQ | 10 | 63 | 1999-11-11 | 2001-11-12 | Available |
| KU4ZR | 11 | 57 | 2016-05-29 | 2018-05-30 | Available |
| KU4ZS | 11 | 55 | 2028-09-24 | — | Active |
| KU4ZT | 10 | 53 | 2034-08-09 | — | Active |
| KU4ZU | 11 | 57 | 2026-05-29 | — | Active |
| KU4ZV | 10 | 59 | 2029-05-18 | — | Active |
| KU4ZW | 10 | 59 | 2034-03-29 | — | Active |
| KU4ZX | 10 | 61 | 2028-01-23 | — | Active |
| KU4ZY | 10 | 63 | 2029-05-27 | — | Active |
| KU4ZZ | 10 | 61 | 2029-05-27 | — | Active |
| KV4AA | 9 | 51 | 2033-04-16 | — | Active (Vanity) |
| KV4AB | 9 | 55 | 2007-05-27 | 2009-05-28 | Available |
| KV4AC | 9 | 57 | 2029-05-22 | — | Active |
| KV4AD | 9 | 53 | 2000-03-13 | 2002-03-14 | Available |
| KV4AE | 9 | 47 | 2002-03-06 | 2004-03-07 | Available |
| KV4AF | 9 | 55 | 2029-07-17 | — | Active |
| KV4AG | 8 | 55 | 2000-06-16 | 2002-06-17 | Available |
| KV4AH | 9 | 53 | 2009-06-11 | 2011-06-12 | Available |
| KV4AI | 10 | 49 | 1999-07-01 | 2001-07-02 | Available |
| KV4AJ | 10 | 59 | 2035-02-02 | — | Active |
| KV4AK | 9 | 55 | 2035-05-23 | — | Active |
| KV4AL | 9 | 55 | 2032-08-25 | — | Active |
| KV4AM | 8 | 53 | 2004-03-08 | 2006-03-09 | Available |
| KV4AN | 10 | 51 | 2029-06-15 | — | Active |
| KV4AO | 9 | 57 | 1999-07-15 | 2001-07-16 | Available |
| KV4AP | 9 | 57 | 2001-07-28 | 2003-07-29 | Available |
| KV4AQ | 9 | 59 | — | — | Available |
| KV4AR | 10 | 53 | 1999-07-28 | 2001-07-29 | Available |
| KV4AS | 10 | 51 | 1998-01-19 | 2000-01-20 | Available |
| KV4AT | 9 | 49 | 2028-11-20 | — | Active |
| KV4AU | 10 | 53 | 1999-07-18 | 2001-07-19 | Available |
| KV4AV | 9 | 55 | 2029-06-28 | — | Active |
| KV4AW | 9 | 55 | 2025-01-11 | — | Active |
| KV4AX | 9 | 57 | 2028-06-19 | — | Active |
| KV4AY | 9 | 59 | 2000-05-09 | 2002-05-10 | Available |
| KV4AZ | 9 | 57 | 2036-05-03 | — | Active |
| KV4BA | 9 | 55 | 2014-11-04 | 2016-11-05 | Available |
| KV4BB | 9 | 59 | 2028-01-26 | — | Active |
| KV4BC | 9 | 61 | 1999-08-27 | 2001-08-28 | Available |
| KV4BD | 9 | 57 | 2000-06-27 | 2002-06-28 | Available |
| KV4BE | 9 | 51 | 2007-10-10 | 2009-10-11 | Available |
| KV4BF | 9 | 59 | 2011-07-09 | 2013-07-10 | Available |
| KV4BG | 8 | 59 | 2029-07-12 | — | Active |
| KV4BH | 9 | 57 | 2006-06-27 | 2008-06-28 | Available |
| KV4BI | 10 | 53 | 2004-03-27 | 2006-03-28 | Available |
| KV4BJ | 10 | 63 | 1999-08-27 | 2001-08-28 | Available |
| KV4BK | 9 | 59 | 2035-10-19 | — | Active |
| KV4BL | 9 | 59 | 2036-03-11 | — | Active |
| KV4BM | 8 | 57 | 2004-07-13 | 2006-07-14 | Available |
| KV4BN | 10 | 55 | 1999-11-02 | 2001-11-03 | Available |
| KV4BO | 9 | 61 | 2000-08-29 | 2002-08-30 | Available |
| KV4BP | 9 | 61 | 2001-07-17 | 2003-07-18 | Available |
| KV4BQ | 9 | 63 | 2000-10-16 | 2002-10-17 | Available |
| KV4BR | 10 | 57 | 1999-09-25 | 2001-09-26 | Available |
| KV4BS | 10 | 55 | 2009-03-11 | 2011-03-12 | Available |
| KV4BT | 9 | 53 | 2028-03-20 | — | Active |
| KV4BU | 10 | 57 | 2017-12-30 | 2019-12-31 | Available |
| KV4BV | 9 | 59 | 1999-11-17 | 2001-11-18 | Available |
| KV4BW | 9 | 59 | 2023-05-30 | 2025-05-31 | Available |
| KV4BX | 9 | 61 | 1999-11-18 | 2001-11-19 | Available |
| KV4BY | 9 | 63 | 2033-04-13 | — | Active |
| KV4BZ | 9 | 61 | 2002-06-01 | 2004-06-02 | Available |
| KV4CA | 9 | 57 | 2029-05-20 | — | Active |
| KV4CB | 9 | 61 | 2000-08-22 | 2002-08-23 | Available |
| KV4CC | 9 | 63 | 2028-08-11 | — | Active |
| KV4CD | 9 | 59 | 2000-07-18 | 2002-07-19 | Available |
| KV4CE | 9 | 53 | 2030-10-01 | — | Active |
| KV4CF | 9 | 61 | 2028-03-20 | — | Active |
| KV4CG | 8 | 61 | 2000-06-20 | 2002-06-21 | Available |
| KV4CH | 9 | 59 | 1999-11-20 | 2001-11-21 | Available |
| KV4CI | 10 | 55 | 2030-06-01 | — | Active |
| KV4CJ | 10 | 65 | 1999-11-17 | 2001-11-18 | Available |
| KV4CK | 9 | 61 | 2000-06-07 | 2002-06-08 | Available |
| KV4CL | 9 | 61 | 2000-03-03 | 2002-03-04 | Available |
| KV4CM | 8 | 59 | 2023-01-23 | 2025-01-24 | Available |
| KV4CN | 10 | 57 | 2034-11-10 | — | Active |
| KV4CO | 9 | 63 | 2035-09-26 | — | Active |
| KV4CP | 9 | 63 | 2018-09-18 | 2020-09-19 | Available |
| KV4CQ | 9 | 65 | 2033-01-14 | — | Active (Vanity) |
| KV4CR | 10 | 59 | 2034-03-14 | — | Active |
| KV4CS | 10 | 57 | 2000-06-07 | 2002-06-08 | Available |
| KV4CT | 9 | 55 | 2024-11-15 | — | Active |