District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4IDO | 10 | 53 | 1998-04-26 | 2000-04-27 | Available |
| K4IDP | 10 | 53 | 2014-05-17 | 2016-05-18 | Available |
| K4IDQ | 10 | 55 | — | — | Available |
| K4IDR | 11 | 49 | 2027-11-22 | — | Active (Vanity) |
| K4IDS | 11 | 47 | 2025-01-05 | — | Active |
| K4IDT | 10 | 45 | 2027-08-22 | — | Active (Vanity) |
| K4IDU | 11 | 49 | 2005-02-27 | 2007-02-28 | Available |
| K4IDV | 10 | 51 | — | — | Available |
| K4IDW | 10 | 51 | 2019-02-23 | 2021-02-24 | Available |
| K4IDX | 10 | 53 | 2028-10-05 | — | Active (Vanity) |
| K4IDY | 10 | 55 | 2030-06-20 | — | Active (Vanity) |
| K4IDZ | 10 | 53 | — | — | Available |
| K4IEA | 10 | 41 | 2015-11-28 | 2017-11-29 | Available |
| K4IEB | 10 | 45 | 2027-08-22 | — | Active |
| K4IEC | 10 | 47 | — | — | Available |
| K4IED | 10 | 43 | 2026-02-23 | — | Active (Vanity) |
| K4IEE | 10 | 37 | 2034-04-10 | — | Active (Vanity) |
| K4IEF | 10 | 45 | — | — | Available |
| K4IEG | 9 | 45 | 2014-11-28 | 2016-11-29 | Available |
| K4IEH | 10 | 43 | 2030-11-06 | — | Active (Vanity) |
| K4IEI | 11 | 39 | — | — | Available |
| K4IEJ | 11 | 49 | — | — | Available |
| K4IEK | 10 | 45 | 1999-11-07 | 2001-11-08 | Available |
| K4IEL | 10 | 45 | — | — | Available |
| K4IEM | 9 | 43 | — | — | Available |
| K4IEN | 11 | 41 | — | — | Available |
| K4IEO | 10 | 47 | — | — | Available |
| K4IEP | 10 | 47 | 1998-08-30 | 2000-08-31 | Available |
| K4IEQ | 10 | 49 | — | — | Available |
| K4IER | 11 | 43 | 2032-04-19 | — | Active (Vanity) |
| K4IES | 11 | 41 | 2020-10-02 | 2022-10-03 | Available |
| K4IET | 10 | 39 | 2022-06-22 | 2024-06-23 | Available |
| K4IEU | 11 | 43 | — | — | Available |
| K4IEV | 10 | 45 | 2016-09-30 | 2018-10-01 | Available |
| K4IEW | 10 | 45 | 2034-07-12 | — | Active (Vanity) |
| K4IEX | 10 | 47 | — | — | Available |
| K4IEY | 10 | 49 | 2031-07-02 | — | Active (Vanity) |
| K4IEZ | 10 | 47 | — | — | Available |
| K4IFA | 10 | 49 | 2029-10-23 | — | Active (Vanity) |
| K4IFB | 10 | 53 | — | — | Available |
| K4IFC | 10 | 55 | — | — | Available |
| K4IFD | 10 | 51 | 2024-03-05 | 2026-03-06 | Available |
| K4IFE | 10 | 45 | 2017-11-17 | 2019-11-18 | Available |
| K4IFF | 10 | 53 | 2017-01-24 | 2019-01-25 | Available |
| K4IFG | 9 | 53 | 2030-08-08 | — | Active (Vanity) |
| K4IFH | 10 | 51 | 2024-03-22 | 2026-03-23 | Available |
| K4IFI | 11 | 47 | 2029-06-26 | — | Active (Vanity) |
| K4IFJ | 11 | 57 | — | — | Available |
| K4IFK | 10 | 53 | — | — | Available |
| K4IFL | 10 | 53 | 2017-01-15 | 2019-01-16 | Available |
| K4IFM | 9 | 51 | — | — | Available |
| K4IFN | 11 | 49 | — | — | Available |
| K4IFO | 10 | 55 | — | — | Available |
| K4IFP | 10 | 55 | 1998-12-13 | 2000-12-14 | Available |
| K4IFQ | 10 | 57 | 2003-12-03 | 2005-12-04 | Available |
| K4IFR | 11 | 51 | 2032-06-25 | — | Active (Vanity) |
| K4IFS | 11 | 49 | 2034-12-10 | — | Active (Vanity) |
| K4IFT | 10 | 47 | — | — | Available |
| K4IFU | 11 | 51 | 2004-12-15 | 2006-12-16 | Available |
| K4IFV | 10 | 53 | — | — | Available |
| K4IFW | 10 | 53 | 2018-01-22 | 2020-01-23 | Available |
| K4IFX | 10 | 55 | 2030-06-15 | — | Active (Vanity) |
| K4IFY | 10 | 57 | — | — | Available |
| K4IFZ | 10 | 55 | — | — | Available |
| K4IGA | 9 | 49 | — | — | Available |
| K4IGB | 9 | 53 | 2030-03-30 | — | Active |
| K4IGC | 9 | 55 | — | — | Available |
| K4IGD | 9 | 51 | 2018-05-14 | 2020-05-15 | Available |
| K4IGE | 9 | 45 | — | — | Available |
| K4IGF | 9 | 53 | — | — | Available |
| K4IGG | 8 | 53 | — | — | Available |
| K4IGH | 9 | 51 | 2036-04-03 | — | Active (Vanity) |
| K4IGI | 10 | 47 | 2013-01-12 | 2015-01-13 | Available |
| K4IGJ | 10 | 57 | 2006-08-09 | 2008-08-10 | Available |
| K4IGK | 9 | 53 | 2029-08-16 | — | Active (Vanity) |
| K4IGL | 9 | 53 | 2036-06-18 | — | Active (Vanity) |
| K4IGM | 8 | 51 | — | — | Available |
| K4IGN | 10 | 49 | — | — | Available |
| K4IGO | 9 | 55 | 2033-03-28 | — | Active (Vanity) |
| K4IGP | 9 | 55 | — | — | Available |
| K4IGQ | 9 | 57 | 2007-04-23 | 2009-04-24 | Available |
| K4IGR | 10 | 51 | — | — | Available |
| K4IGS | 10 | 49 | 2028-02-04 | — | Active |
| K4IGT | 9 | 47 | 1997-11-10 | 1999-11-11 | Available |
| K4IGU | 10 | 51 | 2008-03-06 | 2010-03-07 | Available |
| K4IGV | 9 | 53 | — | — | Available |
| K4IGW | 9 | 53 | — | — | Available |
| K4IGX | 9 | 55 | — | — | Available |
| K4IGY | 9 | 57 | 2014-03-07 | 2016-03-08 | Available |
| K4IGZ | 9 | 55 | 2033-05-02 | — | Active (Vanity) |
| K4IHA | 10 | 47 | — | — | Available |
| K4IHB | 10 | 51 | 2034-09-17 | — | Active (Vanity) |
| K4IHC | 10 | 53 | 2027-07-04 | — | Active (Vanity) |
| K4IHD | 10 | 49 | 2027-12-11 | — | Active (Vanity) |
| K4IHE | 10 | 43 | — | — | Available |
| K4IHF | 10 | 51 | — | — | Available |
| K4IHG | 9 | 51 | — | — | Available |
| K4IHH | 10 | 49 | 1997-11-24 | 1999-11-25 | Available |
| K4IHI | 11 | 45 | 2031-01-23 | — | Active (Vanity) |
| K4IHJ | 11 | 55 | 2031-01-23 | — | Active (Vanity) |