District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KB4ZO | 9 | 63 | — | — | Available |
| KB4ZP | 9 | 63 | 2029-06-03 | — | Active |
| KB4ZQ | 9 | 65 | 2023-04-13 | 2025-04-14 | Available |
| KB4ZR | 10 | 59 | — | — | Available |
| KB4ZS | 10 | 57 | 2004-12-06 | 2006-12-07 | Available |
| KB4ZT | 9 | 55 | — | — | Available |
| KB4ZU | 10 | 59 | 2007-01-28 | 2009-01-29 | Available |
| KB4ZV | 9 | 61 | — | — | Available |
| KB4ZW | 9 | 61 | 2025-03-24 | — | Active |
| KB4ZX | 9 | 63 | 2004-09-09 | 2006-09-10 | Available |
| KB4ZY | 9 | 65 | — | — | Available |
| KB4ZZ | 9 | 63 | 2026-12-04 | — | Active |
| KC4AA | 9 | 53 | 2027-09-17 | — | Active (Vanity) |
| KC4AB | 9 | 57 | 2011-10-08 | 2013-10-09 | Available |
| KC4AC | 9 | 59 | 2030-12-08 | — | Active (Vanity) |
| KC4AD | 9 | 55 | — | — | Available |
| KC4AE | 9 | 49 | 2036-08-23 | — | Active (Vanity) |
| KC4AF | 9 | 57 | 2036-02-16 | — | Active |
| KC4AG | 8 | 57 | — | — | Available |
| KC4AH | 9 | 55 | — | — | Available |
| KC4AI | 10 | 51 | 2010-05-29 | 2012-05-30 | Available |
| KC4AJ | 10 | 61 | 2015-11-28 | 2017-11-29 | Available |
| KC4AK | 9 | 57 | 2035-01-13 | — | Active |
| KC4AL | 9 | 57 | 2032-02-12 | — | Active (Vanity) |
| KC4AM | 8 | 55 | 2028-03-02 | — | Active (Vanity) |
| KC4AN | 10 | 53 | 2032-07-27 | — | Active |
| KC4AO | 9 | 59 | 2024-10-31 | 2026-11-01 | Available |
| KC4AP | 9 | 59 | 2033-01-28 | — | Active (Vanity) |
| KC4AQ | 9 | 61 | 2014-11-21 | 2016-11-22 | Available |
| KC4AR | 10 | 55 | — | — | Available |
| KC4AS | 10 | 53 | 2021-10-01 | 2023-10-02 | Available |
| KC4AT | 9 | 51 | 2029-12-03 | — | Active (Vanity) |
| KC4AU | 10 | 55 | 2014-11-23 | 2016-11-24 | Available |
| KC4AV | 9 | 57 | 2030-09-29 | — | Active (Vanity) |
| KC4AW | 9 | 57 | — | — | Available |
| KC4AX | 9 | 59 | 2034-12-20 | — | Active (Vanity) |
| KC4AY | 9 | 61 | — | — | Available |
| KC4AZ | 9 | 59 | 2036-11-22 | — | Active |
| KC4BA | 9 | 57 | 2035-01-12 | — | Active |
| KC4BB | 9 | 61 | 2032-02-23 | — | Active (Vanity) |
| KC4BC | 9 | 63 | 2033-03-18 | — | Active (Vanity) |
| KC4BD | 9 | 59 | 2005-10-16 | 2007-10-17 | Available |
| KC4BE | 9 | 53 | — | — | Available |
| KC4BF | 9 | 61 | 2004-04-19 | 2006-04-20 | Available |
| KC4BG | 8 | 61 | — | — | Available |
| KC4BH | 9 | 59 | — | — | Available |
| KC4BI | 10 | 55 | 2035-01-31 | — | Active |
| KC4BJ | 10 | 65 | 2012-02-18 | 2014-02-19 | Available |
| KC4BK | 9 | 61 | — | — | Available |
| KC4BL | 9 | 61 | 2014-10-20 | 2016-10-21 | Available |
| KC4BM | 8 | 59 | 2024-08-19 | 2026-08-20 | Available |
| KC4BN | 10 | 57 | — | — | Available |
| KC4BO | 9 | 63 | 2014-10-10 | 2016-10-11 | Available |
| KC4BP | 9 | 63 | 2034-11-23 | — | Active |
| KC4BQ | 9 | 65 | 2009-04-17 | 2011-04-18 | Available |
| KC4BR | 10 | 59 | 2025-04-25 | — | Active |
| KC4BS | 10 | 57 | — | — | Available |
| KC4BT | 9 | 55 | 2004-03-01 | 2006-03-02 | Available |
| KC4BU | 10 | 59 | 2015-08-11 | 2017-08-12 | Available |
| KC4BV | 9 | 61 | 2025-03-17 | — | Active |
| KC4BW | 9 | 61 | 2022-04-01 | 2024-04-02 | Available |
| KC4BX | 9 | 63 | — | — | Available |
| KC4BY | 9 | 65 | 2027-03-13 | — | Active (Vanity) |
| KC4BZ | 9 | 63 | 2029-04-14 | — | Active |
| KC4CA | 9 | 59 | — | — | Available |
| KC4CB | 9 | 63 | 1999-07-22 | 2001-07-23 | Available |
| KC4CC | 9 | 65 | 2025-02-17 | — | Active |
| KC4CD | 9 | 61 | 2015-02-01 | 2017-02-02 | Available |
| KC4CE | 9 | 55 | 2015-04-17 | 2017-04-18 | Available |
| KC4CF | 9 | 63 | 2019-03-25 | 2021-03-26 | Available |
| KC4CG | 8 | 63 | 2028-04-20 | — | Active |
| KC4CH | 9 | 61 | 2028-07-31 | — | Active (Vanity) |
| KC4CI | 10 | 57 | — | — | Available |
| KC4CJ | 10 | 67 | 2030-12-08 | — | Active (Vanity) |
| KC4CK | 9 | 63 | 2031-04-08 | — | Active (Vanity) |
| KC4CL | 9 | 63 | 2029-06-25 | — | Active (Vanity) |
| KC4CM | 8 | 61 | 2025-01-17 | — | Active |
| KC4CN | 10 | 59 | — | — | Available |
| KC4CO | 9 | 65 | — | — | Available |
| KC4CP | 9 | 65 | 2035-08-18 | — | Active (Vanity) |
| KC4CQ | 9 | 67 | 2029-11-10 | — | Active |
| KC4CR | 10 | 61 | 2031-12-03 | — | Active |
| KC4CS | 10 | 59 | 2014-10-19 | 2016-10-20 | Available |
| KC4CT | 9 | 57 | 2025-05-04 | — | Active |
| KC4CU | 10 | 61 | 2035-02-10 | — | Active |
| KC4CV | 9 | 63 | — | — | Available |
| KC4CW | 9 | 63 | 2028-12-28 | — | Active (Vanity) |
| KC4CX | 9 | 65 | 2036-01-23 | — | Active |
| KC4CY | 9 | 67 | 2009-04-21 | 2011-04-22 | Available |
| KC4CZ | 9 | 65 | 2025-10-24 | — | Active |
| KC4DA | 9 | 55 | 2031-04-09 | — | Active (Vanity) |
| KC4DB | 9 | 59 | 2036-08-25 | — | Active (Vanity) |
| KC4DC | 9 | 61 | 2028-02-09 | — | Active (Vanity) |
| KC4DD | 9 | 57 | 2027-04-11 | — | Active (Vanity) |
| KC4DE | 9 | 51 | 2030-05-27 | — | Active (Vanity) |
| KC4DF | 9 | 59 | 2014-02-22 | 2016-02-23 | Available |
| KC4DG | 8 | 59 | 2022-12-13 | 2024-12-14 | Available |
| KC4DH | 9 | 57 | 2024-08-01 | 2026-08-02 | Available |
| KC4DI | 10 | 53 | 2005-03-07 | 2007-03-08 | Available |
| KC4DJ | 10 | 63 | 2029-07-13 | — | Active |