District 4
2x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KC4TZV | 11 | 69 | 2000-11-13 | 2002-11-14 | Available |
| KC4TZW | 11 | 69 | 2029-03-02 | — | Active |
| KC4TZX | 11 | 71 | 2022-01-29 | 2024-01-30 | Available |
| KC4TZY | 11 | 73 | 2022-05-03 | 2024-05-04 | Available |
| KC4TZZ | 11 | 71 | 2021-03-05 | 2023-03-06 | Available |
| KC4UAA | 12 | 63 | 2011-03-07 | 2013-03-08 | Available |
| KC4UAB | 12 | 67 | 2004-01-04 | 2006-01-05 | Available |
| KC4UAC | 12 | 69 | 2031-03-30 | — | Active |
| KC4UAD | 12 | 65 | 2000-11-13 | 2002-11-14 | Available |
| KC4UAE | 12 | 59 | — | — | Available |
| KC4UAF | 12 | 67 | 2011-05-07 | 2013-05-08 | Available |
| KC4UAG | 11 | 67 | 2000-11-13 | 2002-11-14 | Available |
| KC4UAH | 12 | 65 | 2000-11-13 | 2002-11-14 | Available |
| KC4UAI | 13 | 61 | 2031-04-04 | — | Active |
| KC4UAJ | 13 | 71 | — | — | Available |
| KC4UAK | 12 | 67 | — | — | Available |
| KC4UAL | 12 | 67 | 2031-11-06 | — | Active |
| KC4UAM | 11 | 65 | 2001-02-12 | 2003-02-13 | Available |
| KC4UAN | 13 | 63 | 2031-05-22 | — | Active |
| KC4UAO | 12 | 69 | 2033-10-19 | — | Active |
| KC4UAP | 12 | 69 | 2022-07-10 | 2024-07-11 | Available |
| KC4UAQ | 12 | 71 | — | — | Available |
| KC4UAR | 13 | 65 | 2000-11-13 | 2002-11-14 | Available |
| KC4UAS | 13 | 63 | 2003-08-31 | 2005-09-01 | Available |
| KC4UAT | 12 | 61 | — | — | Available |
| KC4UAU | 13 | 65 | 2011-08-09 | 2013-08-10 | Available |
| KC4UAV | 12 | 67 | 2012-04-20 | 2014-04-21 | Available |
| KC4UAW | 12 | 67 | 2020-11-13 | 2022-11-14 | Available |
| KC4UAX | 12 | 69 | 2000-12-31 | 2003-01-01 | Available |
| KC4UAY | 12 | 71 | 2000-11-13 | 2002-11-14 | Available |
| KC4UAZ | 12 | 69 | 2000-11-13 | 2002-11-14 | Available |
| KC4UBA | 12 | 67 | 2000-11-13 | 2002-11-14 | Available |
| KC4UBB | 12 | 71 | 2000-12-31 | 2003-01-01 | Available |
| KC4UBC | 12 | 73 | 2031-10-22 | — | Active |
| KC4UBD | 12 | 69 | — | — | Available |
| KC4UBE | 12 | 63 | 2030-12-31 | — | Active |
| KC4UBF | 12 | 71 | 2000-11-13 | 2002-11-14 | Available |
| KC4UBG | 11 | 71 | 2030-11-13 | — | Active |
| KC4UBH | 12 | 69 | 2000-10-03 | 2002-10-04 | Available |
| KC4UBI | 13 | 65 | 2030-11-20 | — | Active |
| KC4UBJ | 13 | 75 | 2030-11-13 | — | Active |
| KC4UBK | 12 | 71 | — | — | Available |
| KC4UBL | 12 | 71 | 2030-11-13 | — | Active |
| KC4UBM | 11 | 69 | 2009-10-27 | 2011-10-28 | Available |
| KC4UBN | 13 | 67 | 2001-07-16 | 2003-07-17 | Available |
| KC4UBO | 12 | 73 | 2030-11-13 | — | Active |
| KC4UBP | 12 | 73 | 2010-12-24 | 2012-12-25 | Available |
| KC4UBQ | 12 | 75 | 2030-12-24 | — | Active |
| KC4UBR | 13 | 69 | 2004-08-03 | 2006-08-04 | Available |
| KC4UBS | 13 | 67 | 2000-11-13 | 2002-11-14 | Available |
| KC4UBT | 12 | 65 | 2001-03-12 | 2003-03-13 | Available |
| KC4UBU | 13 | 69 | 2024-03-05 | 2026-03-06 | Available |
| KC4UBV | 12 | 71 | 2000-12-31 | 2003-01-01 | Available |
| KC4UBW | 12 | 71 | 2014-05-17 | 2016-05-18 | Available |
| KC4UBX | 12 | 73 | 2020-11-13 | 2022-11-14 | Available |
| KC4UBY | 12 | 75 | 2023-02-01 | 2025-02-02 | Available |
| KC4UBZ | 12 | 73 | 2000-11-13 | 2002-11-14 | Available |
| KC4UCA | 12 | 69 | 2023-09-28 | 2025-09-29 | Available |
| KC4UCB | 12 | 73 | 2031-01-05 | — | Active |
| KC4UCC | 12 | 75 | 2000-11-13 | 2002-11-14 | Available |
| KC4UCD | 12 | 71 | 2034-10-01 | — | Active |
| KC4UCE | 12 | 65 | 1999-02-11 | 2001-02-12 | Available |
| KC4UCF | 12 | 73 | 2010-11-13 | 2012-11-14 | Available |
| KC4UCG | 11 | 73 | 2000-11-13 | 2002-11-14 | Available |
| KC4UCH | 12 | 71 | 2001-02-12 | 2003-02-13 | Available |
| KC4UCI | 13 | 67 | — | — | Available |
| KC4UCJ | 13 | 77 | 2030-12-07 | — | Active |
| KC4UCK | 12 | 73 | 2011-03-25 | 2013-03-26 | Available |
| KC4UCL | 12 | 73 | 2010-11-13 | 2012-11-14 | Available |
| KC4UCM | 11 | 71 | 2000-11-13 | 2002-11-14 | Available |
| KC4UCN | 13 | 69 | 2031-05-01 | — | Active (Vanity) |
| KC4UCO | 12 | 75 | 2000-11-13 | 2002-11-14 | Available |
| KC4UCP | 12 | 75 | 2010-12-31 | 2013-01-01 | Available |
| KC4UCQ | 12 | 77 | 2031-02-26 | — | Active |
| KC4UCR | 13 | 71 | 2009-06-08 | 2011-06-09 | Available |
| KC4UCS | 13 | 69 | 2020-12-31 | 2023-01-01 | Available |
| KC4UCT | 12 | 67 | 2034-02-04 | — | Active |
| KC4UCU | 13 | 71 | 2010-12-31 | 2013-01-01 | Available |
| KC4UCV | 12 | 73 | — | — | Available |
| KC4UCW | 12 | 73 | 2014-05-31 | 2016-06-01 | Available |
| KC4UCX | 12 | 75 | 2031-08-10 | — | Active |
| KC4UCY | 12 | 77 | 2001-02-26 | 2003-02-27 | Available |
| KC4UCZ | 12 | 75 | — | — | Available |
| KC4UDA | 12 | 65 | 2010-11-13 | 2012-11-14 | Available |
| KC4UDB | 12 | 69 | 2007-07-10 | 2009-07-11 | Available |
| KC4UDC | 12 | 71 | 2000-11-13 | 2002-11-14 | Available |
| KC4UDD | 12 | 67 | — | — | Available |
| KC4UDE | 12 | 61 | 2000-11-13 | 2002-11-14 | Available |
| KC4UDF | 12 | 69 | 2020-12-24 | 2022-12-25 | Available |
| KC4UDG | 11 | 69 | 2010-12-24 | 2012-12-25 | Available |
| KC4UDH | 12 | 67 | 2000-12-24 | 2002-12-25 | Available |
| KC4UDI | 13 | 63 | 2022-05-08 | 2024-05-09 | Available |
| KC4UDJ | 13 | 73 | 2001-02-12 | 2003-02-13 | Available |
| KC4UDK | 12 | 69 | 2020-11-13 | 2022-11-14 | Available |
| KC4UDL | 12 | 69 | 2011-07-24 | 2013-07-25 | Available |
| KC4UDM | 11 | 67 | — | — | Available |
| KC4UDN | 13 | 65 | — | — | Available |
| KC4UDO | 12 | 71 | — | — | Available |
| KC4UDP | 12 | 71 | — | — | Available |
| KC4UDQ | 12 | 73 | 2011-03-19 | 2013-03-20 | Available |