District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KS4PK | 10 | 57 | 2021-06-28 | 2023-06-29 | Available |
| KS4PL | 10 | 57 | 2035-02-03 | — | Active |
| KS4PM | 9 | 55 | 2021-10-29 | 2023-10-30 | Available |
| KS4PN | 11 | 53 | — | — | Available |
| KS4PO | 10 | 59 | 2022-02-04 | 2024-02-05 | Available |
| KS4PP | 10 | 59 | — | — | Available |
| KS4PQ | 10 | 61 | 2033-08-31 | — | Active |
| KS4PR | 11 | 55 | 2034-09-27 | — | Active |
| KS4PS | 11 | 53 | 2024-03-29 | 2026-03-30 | Available |
| KS4PT | 10 | 51 | 2023-09-10 | 2025-09-11 | Available |
| KS4PU | 11 | 55 | — | — | Available |
| KS4PV | 10 | 57 | 2004-06-24 | 2006-06-25 | Available |
| KS4PW | 10 | 57 | 2014-05-10 | 2016-05-11 | Available |
| KS4PX | 10 | 59 | 2000-02-15 | 2002-02-16 | Available |
| KS4PY | 10 | 61 | — | — | Available |
| KS4PZ | 10 | 59 | 2000-02-15 | 2002-02-16 | Available |
| KS4QA | 10 | 55 | 2023-09-14 | 2025-09-15 | Available |
| KS4QB | 10 | 59 | 2024-03-29 | 2026-03-30 | Available |
| KS4QC | 10 | 61 | — | — | Available |
| KS4QD | 10 | 57 | 2033-09-21 | — | Active |
| KS4QE | 10 | 51 | — | — | Available |
| KS4QF | 10 | 59 | 2033-09-28 | — | Active |
| KS4QG | 9 | 59 | — | — | Available |
| KS4QH | 10 | 57 | — | — | Available |
| KS4QI | 11 | 53 | 2003-08-31 | 2005-09-01 | Available |
| KS4QJ | 11 | 63 | — | — | Available |
| KS4QK | 10 | 59 | — | — | Available |
| KS4QL | 10 | 59 | 1999-02-10 | 2001-02-11 | Available |
| KS4QM | 9 | 57 | 2003-08-07 | 2005-08-08 | Available |
| KS4QN | 11 | 55 | 2024-05-03 | 2026-05-04 | Available |
| KS4QO | 10 | 61 | — | — | Available |
| KS4QP | 10 | 61 | 2002-08-20 | 2004-08-21 | Available |
| KS4QQ | 10 | 63 | 2033-09-14 | — | Active |
| KS4QR | 11 | 57 | 2010-08-07 | 2012-08-08 | Available |
| KS4QS | 11 | 55 | 1997-08-14 | 1999-08-15 | Available |
| KS4QT | 10 | 53 | 2009-02-28 | 2011-03-01 | Available |
| KS4QU | 11 | 57 | 2023-01-19 | 2025-01-20 | Available |
| KS4QV | 10 | 59 | 2034-07-14 | — | Active |
| KS4QW | 10 | 59 | — | — | Available |
| KS4QX | 10 | 61 | — | — | Available |
| KS4QY | 10 | 63 | — | — | Available |
| KS4QZ | 10 | 61 | 2007-03-24 | 2009-03-25 | Available |
| KS4RA | 11 | 49 | 2033-10-29 | — | Active |
| KS4RB | 11 | 53 | 2014-01-18 | 2016-01-19 | Available |
| KS4RC | 11 | 55 | 2033-10-03 | — | Active |
| KS4RD | 11 | 51 | — | — | Available |
| KS4RE | 11 | 45 | — | — | Available |
| KS4RF | 11 | 53 | 2034-11-13 | — | Active |
| KS4RG | 10 | 53 | — | — | Available |
| KS4RH | 11 | 51 | 1997-09-17 | 1999-09-18 | Available |
| KS4RI | 12 | 47 | — | — | Available |
| KS4RJ | 12 | 57 | 2001-06-18 | 2003-06-19 | Available |
| KS4RK | 11 | 53 | 2021-10-15 | 2023-10-16 | Available |
| KS4RL | 11 | 53 | 2019-10-23 | 2021-10-24 | Available |
| KS4RM | 10 | 51 | — | — | Available |
| KS4RN | 12 | 49 | 2034-07-25 | — | Active |
| KS4RO | 11 | 55 | 2024-04-12 | 2026-04-13 | Available |
| KS4RP | 11 | 55 | — | — | Available |
| KS4RQ | 11 | 57 | 2023-03-30 | 2025-03-31 | Available |
| KS4RR | 12 | 51 | 2013-01-12 | 2015-01-13 | Available |
| KS4RS | 12 | 49 | 2024-07-09 | 2026-07-10 | Available |
| KS4RT | 11 | 47 | 2033-03-23 | — | Active |
| KS4RU | 12 | 51 | 2024-03-05 | 2026-03-06 | Available |
| KS4RV | 11 | 53 | — | — | Available |
| KS4RW | 11 | 53 | 2031-09-17 | — | Active |
| KS4RX | 11 | 55 | 2034-06-19 | — | Active |
| KS4RY | 11 | 57 | 2032-06-30 | — | Active |
| KS4RZ | 11 | 55 | 2013-05-11 | 2015-05-12 | Available |
| KS4SA | 11 | 47 | 2034-03-29 | — | Active |
| KS4SB | 11 | 51 | 2010-08-24 | 2012-08-25 | Available |
| KS4SC | 11 | 53 | — | — | Available |
| KS4SD | 11 | 49 | 2004-04-05 | 2006-04-06 | Available |
| KS4SE | 11 | 43 | 2033-02-11 | — | Active |
| KS4SF | 11 | 51 | — | — | Available |
| KS4SG | 10 | 51 | — | — | Available |
| KS4SH | 11 | 49 | 2005-03-01 | 2007-03-02 | Available |
| KS4SI | 12 | 45 | 2023-09-07 | 2025-09-08 | Available |
| KS4SJ | 12 | 55 | — | — | Available |
| KS4SK | 11 | 51 | 2030-07-31 | — | Active (Vanity) |
| KS4SL | 11 | 51 | — | — | Available |
| KS4SM | 10 | 49 | 2022-06-09 | 2024-06-10 | Available |
| KS4SN | 12 | 47 | 2014-02-15 | 2016-02-16 | Available |
| KS4SO | 11 | 53 | 1999-01-28 | 2001-01-29 | Available |
| KS4SP | 11 | 53 | 2001-03-16 | 2003-03-17 | Available |
| KS4SQ | 11 | 55 | — | — | Available |
| KS4SR | 12 | 49 | — | — | Available |
| KS4SS | 12 | 47 | 2034-12-01 | — | Active |
| KS4ST | 11 | 45 | — | — | Pending Application |
| KS4SU | 12 | 49 | 2023-06-01 | 2025-06-02 | Available |
| KS4SV | 11 | 51 | 1999-02-03 | 2001-02-04 | Available |
| KS4SW | 11 | 51 | 2034-04-05 | — | Active |
| KS4SX | 11 | 53 | 2034-10-24 | — | Active |
| KS4SY | 11 | 55 | 2011-08-06 | 2013-08-07 | Available |
| KS4SZ | 11 | 53 | 2033-10-19 | — | Active |
| KS4TA | 10 | 45 | 2013-08-12 | 2015-08-13 | Available |
| KS4TB | 10 | 49 | 2034-03-29 | — | Active |
| KS4TC | 10 | 51 | 2004-08-15 | 2006-08-16 | Available |
| KS4TD | 10 | 47 | 2030-07-10 | — | Active (Vanity) |
| KS4TE | 10 | 41 | 2033-03-23 | — | Active |
| KS4TF | 10 | 49 | 2000-02-08 | 2002-02-09 | Available |