District 4
2x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KB4ULE | 12 | 61 | 2031-08-17 | — | Active |
| KB4ULF | 12 | 69 | 2027-11-27 | — | Active |
| KB4ULG | 11 | 69 | 1997-12-15 | 1999-12-16 | Available |
| KB4ULH | 12 | 67 | 2006-05-15 | 2008-05-16 | Available |
| KB4ULI | 13 | 63 | — | — | Available |
| KB4ULJ | 13 | 73 | 2036-05-18 | — | Active |
| KB4ULK | 12 | 69 | 2010-12-13 | 2012-12-14 | Available |
| KB4ULL | 12 | 69 | 2026-05-06 | — | Active |
| KB4ULM | 11 | 67 | 2006-05-01 | 2008-05-02 | Available |
| KB4ULN | 13 | 65 | — | — | Available |
| KB4ULO | 12 | 71 | — | — | Available |
| KB4ULP | 12 | 71 | 2006-05-01 | 2008-05-02 | Available |
| KB4ULQ | 12 | 73 | — | — | Available |
| KB4ULR | 13 | 67 | 2014-01-04 | 2016-01-05 | Available |
| KB4ULS | 13 | 65 | 2001-10-15 | 2003-10-16 | Available |
| KB4ULT | 12 | 63 | 2006-06-19 | 2008-06-20 | Available |
| KB4ULU | 13 | 67 | 2026-06-05 | — | Active |
| KB4ULV | 12 | 69 | — | — | Available |
| KB4ULW | 12 | 69 | 2026-07-03 | — | Active |
| KB4ULX | 12 | 71 | 2025-02-26 | — | Active |
| KB4ULY | 12 | 73 | 2006-07-29 | 2008-07-30 | Available |
| KB4ULZ | 12 | 71 | — | — | Available |
| KB4UMA | 11 | 63 | — | — | Available |
| KB4UMB | 11 | 67 | — | — | Available |
| KB4UMC | 11 | 69 | — | — | Available |
| KB4UMD | 11 | 65 | — | — | Available |
| KB4UME | 11 | 59 | 2006-05-06 | 2008-05-07 | Available |
| KB4UMF | 11 | 67 | — | — | Available |
| KB4UMG | 10 | 67 | 2006-07-05 | 2008-07-06 | Available |
| KB4UMH | 11 | 65 | 2008-10-05 | 2010-10-06 | Available |
| KB4UMI | 12 | 61 | 2020-04-07 | 2022-04-08 | Available |
| KB4UMJ | 12 | 71 | — | — | Available |
| KB4UMK | 11 | 67 | — | — | Available |
| KB4UML | 11 | 67 | — | — | Available |
| KB4UMM | 10 | 65 | 2002-04-07 | 2004-04-08 | Available |
| KB4UMN | 12 | 63 | 2019-03-22 | 2021-03-23 | Available |
| KB4UMO | 11 | 69 | 2018-04-17 | 2020-04-18 | Available |
| KB4UMP | 11 | 69 | — | — | Available |
| KB4UMQ | 11 | 71 | — | — | Available |
| KB4UMR | 12 | 65 | — | — | Available |
| KB4UMS | 12 | 63 | 2028-06-15 | — | Active |
| KB4UMT | 11 | 61 | — | — | Available |
| KB4UMU | 12 | 65 | — | — | Available |
| KB4UMV | 11 | 67 | 1998-09-18 | 2000-09-19 | Available |
| KB4UMW | 11 | 67 | 1999-03-28 | 2001-03-29 | Available |
| KB4UMX | 11 | 69 | — | — | Available |
| KB4UMY | 11 | 71 | — | — | Available |
| KB4UMZ | 11 | 69 | — | — | Available |
| KB4UNA | 13 | 61 | 2028-01-15 | — | Active |
| KB4UNB | 13 | 65 | 2018-04-23 | 2020-04-24 | Available |
| KB4UNC | 13 | 67 | — | — | Available |
| KB4UND | 13 | 63 | — | — | Available |
| KB4UNE | 13 | 57 | — | — | Available |
| KB4UNF | 13 | 65 | 2028-06-19 | — | Active |
| KB4UNG | 12 | 65 | — | — | Available |
| KB4UNH | 13 | 63 | — | — | Available |
| KB4UNI | 14 | 59 | — | — | Available |
| KB4UNJ | 14 | 69 | — | — | Available |
| KB4UNK | 13 | 65 | — | — | Available |
| KB4UNL | 13 | 65 | 2022-01-04 | 2024-01-05 | Available |
| KB4UNM | 12 | 63 | — | — | Available |
| KB4UNN | 14 | 61 | 2006-05-13 | 2008-05-14 | Available |
| KB4UNO | 13 | 67 | — | — | Available |
| KB4UNP | 13 | 67 | — | — | Available |
| KB4UNQ | 13 | 69 | — | — | Available |
| KB4UNR | 14 | 63 | — | — | Available |
| KB4UNS | 14 | 61 | 2030-03-17 | — | Active (Vanity) |
| KB4UNT | 13 | 59 | 2009-07-22 | 2011-07-23 | Available |
| KB4UNU | 14 | 63 | 2016-07-03 | 2018-07-04 | Available |
| KB4UNV | 13 | 65 | — | — | Available |
| KB4UNW | 13 | 65 | — | — | Available |
| KB4UNX | 13 | 67 | 2009-04-14 | 2011-04-15 | Available |
| KB4UNY | 13 | 69 | 2007-10-09 | 2009-10-10 | Available |
| KB4UNZ | 13 | 67 | 2018-06-25 | 2020-06-26 | Available |
| KB4UOA | 12 | 67 | 2006-09-05 | 2008-09-06 | Available |
| KB4UOB | 12 | 71 | 2016-12-12 | 2018-12-13 | Available |
| KB4UOC | 12 | 73 | — | — | Available |
| KB4UOD | 12 | 69 | — | — | Available |
| KB4UOE | 12 | 63 | 2006-05-03 | 2008-05-04 | Available |
| KB4UOF | 12 | 71 | — | — | Available |
| KB4UOG | 11 | 71 | — | — | Available |
| KB4UOH | 12 | 69 | 2006-06-06 | 2008-06-07 | Available |
| KB4UOI | 13 | 65 | 2007-05-23 | 2009-05-24 | Available |
| KB4UOJ | 13 | 75 | 2036-03-10 | — | Active (Vanity) |
| KB4UOK | 12 | 71 | 2018-09-30 | 2020-10-01 | Available |
| KB4UOL | 12 | 71 | — | — | Available |
| KB4UOM | 11 | 69 | — | — | Available |
| KB4UON | 13 | 67 | — | — | Available |
| KB4UOO | 12 | 73 | 2018-05-05 | 2020-05-06 | Available |
| KB4UOP | 12 | 73 | 2007-12-08 | 2009-12-09 | Available |
| KB4UOQ | 12 | 75 | — | — | Available |
| KB4UOR | 13 | 69 | — | — | Available |
| KB4UOS | 13 | 67 | — | — | Available |
| KB4UOT | 12 | 65 | — | — | Available |
| KB4UOU | 13 | 69 | — | — | Available |
| KB4UOV | 12 | 71 | 1997-12-30 | 1999-12-31 | Available |
| KB4UOW | 12 | 71 | — | — | Available |
| KB4UOX | 12 | 73 | 2026-09-21 | — | Active |
| KB4UOY | 12 | 75 | — | — | Available |
| KB4UOZ | 12 | 73 | — | — | Available |