District 4
2x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KB4UDM | 11 | 65 | — | — | Available |
| KB4UDN | 13 | 63 | — | — | Available |
| KB4UDO | 12 | 69 | 2021-05-14 | 2023-05-15 | Available |
| KB4UDP | 12 | 69 | — | — | Available |
| KB4UDQ | 12 | 71 | 2007-03-18 | 2009-03-19 | Available |
| KB4UDR | 13 | 65 | — | — | Available |
| KB4UDS | 13 | 63 | 2007-03-13 | 2009-03-14 | Available |
| KB4UDT | 12 | 61 | — | — | Available |
| KB4UDU | 13 | 65 | 1998-02-23 | 2000-02-24 | Available |
| KB4UDV | 12 | 67 | — | — | Available |
| KB4UDW | 12 | 67 | 2029-03-13 | — | Active |
| KB4UDX | 12 | 69 | — | — | Available |
| KB4UDY | 12 | 71 | — | — | Available |
| KB4UDZ | 12 | 69 | 2026-06-17 | — | Active |
| KB4UEA | 12 | 57 | 2017-11-05 | 2019-11-06 | Available |
| KB4UEB | 12 | 61 | — | — | Available |
| KB4UEC | 12 | 63 | — | — | Available |
| KB4UED | 12 | 59 | — | — | Available |
| KB4UEE | 12 | 53 | — | — | Available |
| KB4UEF | 12 | 61 | — | — | Available |
| KB4UEG | 11 | 61 | 2028-11-23 | — | Active |
| KB4UEH | 12 | 59 | 2004-03-26 | 2006-03-27 | Available |
| KB4UEI | 13 | 55 | — | — | Available |
| KB4UEJ | 13 | 65 | 2026-06-16 | 2028-06-17 | Canceled (grace period) |
| KB4UEK | 12 | 61 | 2030-01-21 | — | Active |
| KB4UEL | 12 | 61 | 2007-06-10 | 2009-06-11 | Available |
| KB4UEM | 11 | 59 | — | — | Available |
| KB4UEN | 13 | 57 | 2006-08-19 | 2008-08-20 | Available |
| KB4UEO | 12 | 63 | — | — | Available |
| KB4UEP | 12 | 63 | — | — | Available |
| KB4UEQ | 12 | 65 | — | — | Available |
| KB4UER | 13 | 59 | 2007-02-14 | 2009-02-15 | Available |
| KB4UES | 13 | 57 | 1998-09-06 | 2000-09-07 | Available |
| KB4UET | 12 | 55 | 2001-01-08 | 2003-01-09 | Available |
| KB4UEU | 13 | 59 | — | — | Available |
| KB4UEV | 12 | 61 | 2000-12-27 | 2002-12-28 | Available |
| KB4UEW | 12 | 61 | 2034-11-28 | — | Active |
| KB4UEX | 12 | 63 | — | — | Available |
| KB4UEY | 12 | 65 | 2026-12-29 | — | Active |
| KB4UEZ | 12 | 63 | — | — | Available |
| KB4UFA | 12 | 65 | 2026-05-07 | — | Active |
| KB4UFB | 12 | 69 | — | — | Available |
| KB4UFC | 12 | 71 | — | — | Available |
| KB4UFD | 12 | 67 | — | — | Available |
| KB4UFE | 12 | 61 | — | — | Available |
| KB4UFF | 12 | 69 | 2006-04-23 | 2008-04-24 | Available |
| KB4UFG | 11 | 69 | 2007-02-07 | 2009-02-08 | Available |
| KB4UFH | 12 | 67 | 2016-06-27 | 2018-06-28 | Available |
| KB4UFI | 13 | 63 | — | — | Available |
| KB4UFJ | 13 | 73 | 1999-08-01 | 2001-08-02 | Available |
| KB4UFK | 12 | 69 | — | — | Available |
| KB4UFL | 12 | 69 | — | — | Available |
| KB4UFM | 11 | 67 | — | — | Available |
| KB4UFN | 13 | 65 | 2005-09-06 | 2007-09-07 | Available |
| KB4UFO | 12 | 71 | 2016-09-10 | 2018-09-11 | Available |
| KB4UFP | 12 | 71 | 2006-05-03 | 2008-05-04 | Available |
| KB4UFQ | 12 | 73 | — | — | Available |
| KB4UFR | 13 | 67 | — | — | Available |
| KB4UFS | 13 | 65 | — | — | Available |
| KB4UFT | 12 | 63 | — | — | Available |
| KB4UFU | 13 | 67 | — | — | Available |
| KB4UFV | 12 | 69 | — | — | Available |
| KB4UFW | 12 | 69 | — | — | Available |
| KB4UFX | 12 | 71 | — | — | Available |
| KB4UFY | 12 | 73 | — | — | Available |
| KB4UFZ | 12 | 71 | — | — | Available |
| KB4UGA | 11 | 65 | 2002-03-30 | 2004-03-31 | Available |
| KB4UGB | 11 | 69 | — | — | Available |
| KB4UGC | 11 | 71 | — | — | Available |
| KB4UGD | 11 | 67 | — | — | Available |
| KB4UGE | 11 | 61 | — | — | Available |
| KB4UGF | 11 | 69 | 2009-07-23 | 2011-07-24 | Available |
| KB4UGG | 10 | 69 | — | — | Available |
| KB4UGH | 11 | 67 | 2006-05-01 | 2008-05-02 | Available |
| KB4UGI | 12 | 63 | 1999-09-29 | 2001-09-30 | Available |
| KB4UGJ | 12 | 73 | — | — | Available |
| KB4UGK | 11 | 69 | 2022-08-11 | 2024-08-12 | Available |
| KB4UGL | 11 | 69 | 2032-08-11 | — | Active |
| KB4UGM | 10 | 67 | — | — | Available |
| KB4UGN | 12 | 65 | — | — | Available |
| KB4UGO | 11 | 71 | — | — | Available |
| KB4UGP | 11 | 71 | — | — | Available |
| KB4UGQ | 11 | 73 | — | — | Available |
| KB4UGR | 12 | 67 | — | — | Available |
| KB4UGS | 12 | 65 | — | — | Available |
| KB4UGT | 11 | 63 | — | — | Available |
| KB4UGU | 12 | 67 | — | — | Available |
| KB4UGV | 11 | 69 | — | — | Available |
| KB4UGW | 11 | 69 | 2009-06-29 | 2011-06-30 | Available |
| KB4UGX | 11 | 71 | 1997-09-29 | 1999-09-30 | Available |
| KB4UGY | 11 | 73 | — | — | Available |
| KB4UGZ | 11 | 71 | 1998-10-18 | 2000-10-19 | Available |
| KB4UHA | 12 | 63 | — | — | Available |
| KB4UHB | 12 | 67 | 2012-02-25 | 2014-02-26 | Available |
| KB4UHC | 12 | 69 | 2008-03-18 | 2010-03-19 | Available |
| KB4UHD | 12 | 65 | — | — | Available |
| KB4UHE | 12 | 59 | — | — | Available |
| KB4UHF | 12 | 67 | — | — | Available |
| KB4UHG | 11 | 67 | 2004-12-08 | 2006-12-09 | Available |
| KB4UHH | 12 | 65 | — | — | Available |