District 4
2x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KA4UDH | 12 | 61 | 2019-12-26 | 2021-12-27 | Available |
| KA4UDI | 13 | 57 | 2006-03-18 | 2008-03-19 | Available |
| KA4UDJ | 13 | 67 | — | — | Available |
| KA4UDK | 12 | 63 | — | — | Available |
| KA4UDL | 12 | 63 | — | — | Available |
| KA4UDM | 11 | 61 | 2004-05-17 | 2006-05-18 | Available |
| KA4UDN | 13 | 59 | — | — | Available |
| KA4UDO | 12 | 65 | 2007-02-04 | 2009-02-05 | Available |
| KA4UDP | 12 | 65 | — | — | Available |
| KA4UDQ | 12 | 67 | — | — | Available |
| KA4UDR | 13 | 61 | — | — | Available |
| KA4UDS | 13 | 59 | — | — | Available |
| KA4UDT | 12 | 57 | — | — | Available |
| KA4UDU | 13 | 61 | — | — | Available |
| KA4UDV | 12 | 63 | — | — | Available |
| KA4UDW | 12 | 63 | — | — | Available |
| KA4UDX | 12 | 65 | 2034-06-02 | — | Active (Vanity) |
| KA4UDY | 12 | 67 | — | — | Available |
| KA4UDZ | 12 | 65 | 2033-11-09 | — | Active |
| KA4UEA | 12 | 53 | — | — | Available |
| KA4UEB | 12 | 57 | — | — | Available |
| KA4UEC | 12 | 59 | — | — | Available |
| KA4UED | 12 | 55 | — | — | Available |
| KA4UEE | 12 | 49 | — | — | Available |
| KA4UEF | 12 | 57 | — | — | Available |
| KA4UEG | 11 | 57 | — | — | Available |
| KA4UEH | 12 | 55 | — | — | Available |
| KA4UEI | 13 | 51 | — | — | Available |
| KA4UEJ | 13 | 61 | — | — | Available |
| KA4UEK | 12 | 57 | — | — | Available |
| KA4UEL | 12 | 57 | — | — | Available |
| KA4UEM | 11 | 55 | 2024-11-30 | — | Active |
| KA4UEN | 13 | 53 | — | — | Available |
| KA4UEO | 12 | 59 | — | — | Available |
| KA4UEP | 12 | 59 | — | — | Available |
| KA4UEQ | 12 | 61 | — | — | Available |
| KA4UER | 13 | 55 | — | — | Available |
| KA4UES | 13 | 53 | — | — | Available |
| KA4UET | 12 | 51 | 2009-01-23 | 2011-01-24 | Available |
| KA4UEU | 13 | 55 | 2034-08-20 | — | Active (Vanity) |
| KA4UEV | 12 | 57 | 2026-06-22 | — | Active |
| KA4UEW | 12 | 57 | — | — | Available |
| KA4UEX | 12 | 59 | — | — | Available |
| KA4UEY | 12 | 61 | — | — | Available |
| KA4UEZ | 12 | 59 | — | — | Available |
| KA4UFA | 12 | 61 | 2005-06-08 | 2007-06-09 | Available |
| KA4UFB | 12 | 65 | — | — | Available |
| KA4UFC | 12 | 67 | — | — | Available |
| KA4UFD | 12 | 63 | — | — | Available |
| KA4UFE | 12 | 57 | — | — | Available |
| KA4UFF | 12 | 65 | 2028-09-15 | — | Active |
| KA4UFG | 11 | 65 | — | — | Available |
| KA4UFH | 12 | 63 | — | — | Available |
| KA4UFI | 13 | 59 | 2029-05-03 | — | Active |
| KA4UFJ | 13 | 69 | — | — | Available |
| KA4UFK | 12 | 65 | 2028-06-11 | — | Active |
| KA4UFL | 12 | 65 | — | — | Available |
| KA4UFM | 11 | 63 | 2034-07-13 | — | Active |
| KA4UFN | 13 | 61 | — | — | Available |
| KA4UFO | 12 | 67 | — | — | Available |
| KA4UFP | 12 | 67 | 1997-11-03 | 1999-11-04 | Available |
| KA4UFQ | 12 | 69 | — | — | Available |
| KA4UFR | 13 | 63 | — | — | Available |
| KA4UFS | 13 | 61 | — | — | Available |
| KA4UFT | 12 | 59 | 2024-07-15 | 2026-07-16 | Available |
| KA4UFU | 13 | 63 | — | — | Available |
| KA4UFV | 12 | 65 | — | — | Available |
| KA4UFW | 12 | 65 | — | — | Available |
| KA4UFX | 12 | 67 | 2006-11-05 | 2008-11-06 | Available |
| KA4UFY | 12 | 69 | — | — | Available |
| KA4UFZ | 12 | 67 | — | — | Available |
| KA4UGA | 11 | 61 | 2024-03-05 | 2026-03-06 | Available |
| KA4UGB | 11 | 65 | — | — | Available |
| KA4UGC | 11 | 67 | — | — | Available |
| KA4UGD | 11 | 63 | — | — | Available |
| KA4UGE | 11 | 57 | — | — | Available |
| KA4UGF | 11 | 65 | 2007-02-20 | 2009-02-21 | Available |
| KA4UGG | 10 | 65 | — | — | Available |
| KA4UGH | 11 | 63 | — | — | Available |
| KA4UGI | 12 | 59 | 2026-04-17 | — | Active |
| KA4UGJ | 12 | 69 | — | — | Available |
| KA4UGK | 11 | 65 | — | — | Available |
| KA4UGL | 11 | 65 | — | — | Available |
| KA4UGM | 10 | 63 | 2032-02-03 | — | Active |
| KA4UGN | 12 | 61 | 1997-12-29 | 1999-12-30 | Available |
| KA4UGO | 11 | 67 | 2001-03-20 | 2003-03-21 | Available |
| KA4UGP | 11 | 67 | 2005-12-05 | 2007-12-06 | Available |
| KA4UGQ | 11 | 69 | — | — | Available |
| KA4UGR | 12 | 63 | — | — | Available |
| KA4UGS | 12 | 61 | 2008-12-30 | 2010-12-31 | Available |
| KA4UGT | 11 | 59 | 2026-07-24 | — | Active |
| KA4UGU | 12 | 63 | — | — | Available |
| KA4UGV | 11 | 65 | — | — | Available |
| KA4UGW | 11 | 65 | — | — | Available |
| KA4UGX | 11 | 67 | — | — | Available |
| KA4UGY | 11 | 69 | 2024-03-29 | 2026-03-30 | Available |
| KA4UGZ | 11 | 67 | — | — | Available |
| KA4UHA | 12 | 59 | 2007-09-16 | 2009-09-17 | Available |
| KA4UHB | 12 | 63 | 2016-07-24 | 2018-07-25 | Available |
| KA4UHC | 12 | 65 | 2006-03-20 | 2008-03-21 | Available |