District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4HZS | 10 | 55 | 2027-07-21 | — | Active |
| K4HZT | 9 | 53 | 2007-11-18 | 2009-11-19 | Available |
| K4HZU | 10 | 57 | — | — | Available |
| K4HZV | 9 | 59 | — | — | Available |
| K4HZW | 9 | 59 | 2007-07-22 | 2009-07-23 | Available |
| K4HZX | 9 | 61 | — | — | Available |
| K4HZY | 9 | 63 | 2034-01-24 | — | Active (Vanity) |
| K4HZZ | 9 | 61 | — | — | Available |
| K4IAA | 10 | 45 | — | — | Available |
| K4IAB | 10 | 49 | 2004-04-12 | 2006-04-13 | Available |
| K4IAC | 10 | 51 | 2025-11-28 | — | Active |
| K4IAD | 10 | 47 | 2033-01-28 | — | Active (Vanity) |
| K4IAE | 10 | 41 | — | — | Available |
| K4IAF | 10 | 49 | — | — | Pending Application |
| K4IAG | 9 | 49 | — | — | Available |
| K4IAH | 10 | 47 | — | — | Available |
| K4IAI | 11 | 43 | — | — | Available |
| K4IAJ | 11 | 53 | — | — | Available |
| K4IAK | 10 | 49 | 2025-02-02 | — | Active |
| K4IAL | 10 | 49 | 2027-05-05 | — | Active |
| K4IAM | 9 | 47 | 2031-04-16 | — | Active (Vanity) |
| K4IAN | 11 | 45 | 2028-07-19 | — | Active (Vanity) |
| K4IAO | 10 | 51 | 2033-06-24 | — | Active (Vanity) |
| K4IAP | 10 | 51 | 2030-06-17 | — | Active (Vanity) |
| K4IAQ | 10 | 53 | — | — | Available |
| K4IAR | 11 | 47 | 2017-06-19 | 2019-06-20 | Available |
| K4IAS | 11 | 45 | 2025-04-26 | — | Active (Vanity) |
| K4IAT | 10 | 43 | 2025-03-13 | — | Active (Vanity) |
| K4IAU | 11 | 47 | 1997-10-06 | 1999-10-07 | Available |
| K4IAV | 10 | 49 | 2005-10-25 | 2007-10-26 | Available |
| K4IAW | 10 | 49 | — | — | Available |
| K4IAX | 10 | 51 | — | — | Available |
| K4IAY | 10 | 53 | — | — | Available |
| K4IAZ | 10 | 51 | 2032-04-12 | — | Active (Vanity) |
| K4IBA | 10 | 49 | — | — | Available |
| K4IBB | 10 | 53 | — | — | Available |
| K4IBC | 10 | 55 | 2036-08-11 | — | Active (Vanity) |
| K4IBD | 10 | 51 | — | — | Available |
| K4IBE | 10 | 45 | — | — | Available |
| K4IBF | 10 | 53 | 2011-04-27 | 2013-04-28 | Available |
| K4IBG | 9 | 53 | 2033-10-11 | — | Active (Vanity) |
| K4IBH | 10 | 51 | 2006-06-13 | 2008-06-14 | Available |
| K4IBI | 11 | 47 | 2014-02-08 | 2016-02-09 | Available |
| K4IBJ | 11 | 57 | 2005-02-24 | 2007-02-25 | Available |
| K4IBK | 10 | 53 | — | — | Available |
| K4IBL | 10 | 53 | — | — | Available |
| K4IBM | 9 | 51 | 2031-04-02 | — | Active (Vanity) |
| K4IBN | 11 | 49 | — | — | Available |
| K4IBO | 10 | 55 | 1997-09-15 | 1999-09-16 | Available |
| K4IBP | 10 | 55 | 2001-04-17 | 2003-04-18 | Available |
| K4IBQ | 10 | 57 | 2016-12-03 | 2018-12-04 | Available |
| K4IBR | 11 | 51 | — | — | Available |
| K4IBS | 11 | 49 | 2035-04-16 | — | Active (Vanity) |
| K4IBT | 10 | 47 | — | — | Available |
| K4IBU | 11 | 51 | — | — | Available |
| K4IBV | 10 | 53 | — | — | Available |
| K4IBW | 10 | 53 | 2029-04-13 | — | Active (Vanity) |
| K4IBX | 10 | 55 | 2032-01-15 | — | Active (Vanity) |
| K4IBY | 10 | 57 | 2036-06-24 | — | Active (Vanity) |
| K4IBZ | 10 | 55 | 2027-02-12 | — | Active (Vanity) |
| K4ICA | 10 | 51 | 2034-09-17 | — | Active (Vanity) |
| K4ICB | 10 | 55 | 2006-04-10 | 2008-04-11 | Available |
| K4ICC | 10 | 57 | — | — | Available |
| K4ICD | 10 | 53 | 2022-03-17 | 2024-03-18 | Available |
| K4ICE | 10 | 47 | 2036-12-01 | — | Active (Vanity) |
| K4ICF | 10 | 55 | 2006-08-05 | 2008-08-06 | Available |
| K4ICG | 9 | 55 | 1997-10-06 | 1999-10-07 | Available |
| K4ICH | 10 | 53 | — | — | Available |
| K4ICI | 11 | 49 | 2027-11-24 | — | Active |
| K4ICJ | 11 | 59 | 2008-06-01 | 2010-06-02 | Available |
| K4ICK | 10 | 55 | 2033-06-30 | — | Active (Vanity) |
| K4ICL | 10 | 55 | 2020-06-17 | 2022-06-18 | Available |
| K4ICM | 9 | 53 | 2033-02-14 | — | Active (Vanity) |
| K4ICN | 11 | 51 | 2022-12-13 | 2024-12-14 | Available |
| K4ICO | 10 | 57 | — | — | Available |
| K4ICP | 10 | 57 | 2021-09-03 | 2023-09-04 | Available |
| K4ICQ | 10 | 59 | 2027-04-25 | — | Active (Vanity) |
| K4ICR | 11 | 53 | 2027-08-22 | — | Active |
| K4ICS | 11 | 51 | — | — | Available |
| K4ICT | 10 | 49 | 2024-10-19 | 2026-10-20 | Available |
| K4ICU | 11 | 53 | 2028-10-20 | — | Active (Vanity) |
| K4ICV | 10 | 55 | — | — | Available |
| K4ICW | 10 | 55 | 2030-03-17 | — | Active (Vanity) |
| K4ICX | 10 | 57 | — | — | Available |
| K4ICY | 10 | 59 | 2028-02-09 | — | Active (Vanity) |
| K4ICZ | 10 | 57 | — | — | Available |
| K4IDA | 10 | 47 | 2032-03-29 | — | Active (Vanity) |
| K4IDB | 10 | 51 | 2032-01-19 | — | Active (Vanity) |
| K4IDC | 10 | 53 | 2034-12-04 | — | Active (Vanity) |
| K4IDD | 10 | 49 | 2028-05-15 | — | Active |
| K4IDE | 10 | 43 | 2028-03-22 | — | Active (Vanity) |
| K4IDF | 10 | 51 | — | — | Pending Application |
| K4IDG | 9 | 51 | 2032-10-23 | — | Active (Vanity) |
| K4IDH | 10 | 49 | — | — | Available |
| K4IDI | 11 | 45 | — | — | Available |
| K4IDJ | 11 | 55 | 2028-11-06 | — | Active (Vanity) |
| K4IDK | 10 | 51 | 2031-08-02 | — | Active (Vanity) |
| K4IDL | 10 | 51 | 2008-01-05 | 2010-01-06 | Available |
| K4IDM | 9 | 49 | — | — | Available |
| K4IDN | 11 | 47 | 2027-03-21 | — | Active |