District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KC4OY | 9 | 67 | 2012-07-21 | 2014-07-22 | Available |
| KC4OZ | 9 | 65 | 2028-02-20 | — | Active |
| KC4PA | 9 | 59 | 2028-11-04 | — | Active |
| KC4PB | 9 | 63 | 2005-09-07 | 2007-09-08 | Available |
| KC4PC | 9 | 65 | 2029-06-19 | — | Active (Vanity) |
| KC4PD | 9 | 61 | 2035-06-24 | — | Active |
| KC4PE | 9 | 55 | 2036-10-24 | — | Active |
| KC4PF | 9 | 63 | — | — | Available |
| KC4PG | 8 | 63 | 2000-07-04 | 2002-07-05 | Available |
| KC4PH | 9 | 61 | — | — | Available |
| KC4PI | 10 | 57 | 2001-04-02 | 2003-04-03 | Available |
| KC4PJ | 10 | 67 | — | — | Available |
| KC4PK | 9 | 63 | 2014-09-03 | 2016-09-04 | Available |
| KC4PL | 9 | 63 | 2027-11-05 | — | Active |
| KC4PM | 8 | 61 | — | — | Available |
| KC4PN | 10 | 59 | — | — | Available |
| KC4PO | 9 | 65 | 2015-12-05 | 2017-12-06 | Available |
| KC4PP | 9 | 65 | 2006-05-20 | 2008-05-21 | Available |
| KC4PQ | 9 | 67 | — | — | Available |
| KC4PR | 10 | 61 | 2028-01-04 | — | Active (Vanity) |
| KC4PS | 10 | 59 | — | — | Available |
| KC4PT | 9 | 57 | — | — | Available |
| KC4PU | 10 | 61 | — | — | Available |
| KC4PV | 9 | 63 | 2005-07-18 | 2007-07-19 | Available |
| KC4PW | 9 | 63 | — | — | Available |
| KC4PX | 9 | 65 | 2030-10-24 | — | Active (Vanity) |
| KC4PY | 9 | 67 | — | — | Available |
| KC4PZ | 9 | 65 | 2025-09-15 | — | Active |
| KC4QA | 9 | 61 | — | — | Available |
| KC4QB | 9 | 65 | 2005-03-24 | 2007-03-25 | Available |
| KC4QC | 9 | 67 | — | — | Available |
| KC4QD | 9 | 63 | 2023-01-05 | 2025-01-06 | Available |
| KC4QE | 9 | 57 | 2027-11-13 | — | Active |
| KC4QF | 9 | 65 | — | — | Available |
| KC4QG | 8 | 65 | 1999-11-30 | 2001-12-01 | Available |
| KC4QH | 9 | 63 | 2015-02-08 | 2017-02-09 | Available |
| KC4QI | 10 | 59 | 2026-08-23 | — | Active |
| KC4QJ | 10 | 69 | — | — | Available |
| KC4QK | 9 | 65 | 2027-10-16 | — | Active (Vanity) |
| KC4QL | 9 | 65 | 2025-10-17 | — | Active |
| KC4QM | 8 | 63 | 2026-11-23 | — | Active |
| KC4QN | 10 | 61 | 2035-10-19 | — | Active |
| KC4QO | 9 | 67 | 2008-07-19 | 2010-07-20 | Available |
| KC4QP | 9 | 67 | 2014-07-12 | 2016-07-13 | Available |
| KC4QQ | 9 | 69 | 2035-02-11 | — | Active (Vanity) |
| KC4QR | 10 | 63 | — | — | Available |
| KC4QS | 10 | 61 | 1998-09-21 | 2000-09-22 | Available |
| KC4QT | 9 | 59 | 2025-01-13 | — | Active |
| KC4QU | 10 | 63 | 2005-11-13 | 2007-11-14 | Available |
| KC4QV | 9 | 65 | 2027-10-07 | — | Active |
| KC4QW | 9 | 65 | — | — | Available |
| KC4QX | 9 | 67 | 2032-11-15 | — | Active |
| KC4QY | 9 | 69 | — | — | Available |
| KC4QZ | 9 | 67 | 2025-10-21 | — | Active |
| KC4RA | 10 | 55 | 1998-09-11 | 2000-09-12 | Available |
| KC4RB | 10 | 59 | 2035-10-06 | — | Active (Vanity) |
| KC4RC | 10 | 61 | 2031-12-03 | — | Active (Vanity) |
| KC4RD | 10 | 57 | 2031-05-04 | — | Active (Vanity) |
| KC4RE | 10 | 51 | — | — | Available |
| KC4RF | 10 | 59 | 2017-08-18 | 2019-08-19 | Available |
| KC4RG | 9 | 59 | 2018-10-23 | 2020-10-24 | Available |
| KC4RH | 10 | 57 | 2027-03-13 | — | Active |
| KC4RI | 11 | 53 | 2032-02-11 | — | Active |
| KC4RJ | 11 | 63 | — | — | Available |
| KC4RK | 10 | 59 | 2022-01-21 | 2024-01-22 | Available |
| KC4RL | 10 | 59 | 2025-08-04 | — | Active |
| KC4RM | 9 | 57 | 2032-02-23 | — | Active |
| KC4RN | 11 | 55 | 2019-06-02 | 2021-06-03 | Available |
| KC4RO | 10 | 61 | — | — | Available |
| KC4RP | 10 | 61 | 2028-07-01 | — | Active (Vanity) |
| KC4RQ | 10 | 63 | 2005-11-28 | 2007-11-29 | Available |
| KC4RR | 11 | 57 | 2010-10-30 | 2012-10-31 | Available |
| KC4RS | 11 | 55 | 2027-05-12 | — | Active |
| KC4RT | 10 | 53 | — | — | Available |
| KC4RU | 11 | 57 | — | — | Available |
| KC4RV | 10 | 59 | 2026-11-14 | — | Active (Vanity) |
| KC4RW | 10 | 59 | 2005-08-21 | 2007-08-22 | Available |
| KC4RX | 10 | 61 | 2036-04-28 | — | Active (Vanity) |
| KC4RY | 10 | 63 | — | — | Available |
| KC4RZ | 10 | 61 | 2031-04-27 | — | Active (Vanity) |
| KC4SA | 10 | 53 | 2027-06-30 | — | Active |
| KC4SB | 10 | 57 | 2030-06-13 | — | Active (Vanity) |
| KC4SC | 10 | 59 | 2016-11-15 | 2018-11-16 | Available |
| KC4SD | 10 | 55 | 2036-09-13 | — | Active |
| KC4SE | 10 | 49 | — | — | Available |
| KC4SF | 10 | 57 | 2025-10-27 | — | Active |
| KC4SG | 9 | 57 | 2028-06-05 | — | Active (Vanity) |
| KC4SH | 10 | 55 | 2025-05-21 | — | Active |
| KC4SI | 11 | 51 | 2025-01-19 | — | Active |
| KC4SJ | 11 | 61 | — | — | Available |
| KC4SK | 10 | 57 | — | — | Available |
| KC4SL | 10 | 57 | 2016-10-10 | 2018-10-11 | Available |
| KC4SM | 9 | 55 | 2030-06-30 | — | Active (Vanity) |
| KC4SN | 11 | 53 | — | — | Available |
| KC4SO | 10 | 59 | 2027-11-19 | — | Active |
| KC4SP | 10 | 59 | 2009-03-24 | 2011-03-25 | Available |
| KC4SQ | 10 | 61 | — | — | Available |
| KC4SR | 11 | 55 | 2031-07-29 | — | Active (Vanity) |
| KC4SS | 11 | 53 | 2033-03-15 | — | Active (Vanity) |
| KC4ST | 10 | 51 | — | — | Available |