District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KS4TG | 9 | 49 | — | — | Available |
| KS4TH | 10 | 47 | 2002-01-23 | 2004-01-24 | Available |
| KS4TI | 11 | 43 | 2034-08-22 | — | Active |
| KS4TJ | 11 | 53 | — | — | Available |
| KS4TK | 10 | 49 | 2014-11-22 | 2016-11-23 | Available |
| KS4TL | 10 | 49 | 2015-01-24 | 2017-01-25 | Available |
| KS4TM | 9 | 47 | 2024-12-07 | — | Active |
| KS4TN | 11 | 45 | 2034-06-08 | — | Active (Vanity) |
| KS4TO | 10 | 51 | 2035-04-11 | — | Active |
| KS4TP | 10 | 51 | 2000-11-30 | 2002-12-01 | Available |
| KS4TQ | 10 | 53 | 2016-11-17 | 2018-11-18 | Available |
| KS4TR | 11 | 47 | 2025-08-29 | 2027-08-30 | Canceled (grace period) |
| KS4TS | 11 | 45 | 2035-04-03 | — | Active |
| KS4TT | 10 | 43 | 2008-04-22 | 2010-04-23 | Available |
| KS4TU | 11 | 47 | — | — | Available |
| KS4TV | 10 | 49 | 2032-09-29 | — | Active |
| KS4TW | 10 | 49 | 2033-11-09 | — | Active |
| KS4TX | 10 | 51 | 2023-04-23 | 2025-04-24 | Available |
| KS4TY | 10 | 53 | 2031-11-02 | — | Active |
| KS4TZ | 10 | 51 | 2006-03-22 | 2008-03-23 | Available |
| KS4UA | 11 | 49 | 2028-06-24 | — | Active |
| KS4UB | 11 | 53 | — | — | Available |
| KS4UC | 11 | 55 | 2000-06-27 | 2002-06-28 | Available |
| KS4UD | 11 | 51 | 1998-10-20 | 2000-10-21 | Available |
| KS4UE | 11 | 45 | — | — | Available |
| KS4UF | 11 | 53 | — | — | Available |
| KS4UG | 10 | 53 | 2033-09-14 | — | Active |
| KS4UH | 11 | 51 | — | — | Available |
| KS4UI | 12 | 47 | 2034-04-19 | — | Active |
| KS4UJ | 12 | 57 | — | — | Available |
| KS4UK | 11 | 53 | 2003-06-01 | 2005-06-02 | Available |
| KS4UL | 11 | 53 | 2003-06-08 | 2005-06-09 | Available |
| KS4UM | 10 | 51 | — | — | Available |
| KS4UN | 12 | 49 | 2009-03-17 | 2011-03-18 | Available |
| KS4UO | 11 | 55 | 2033-03-02 | — | Active |
| KS4UP | 11 | 55 | — | — | Available |
| KS4UQ | 11 | 57 | 2009-06-16 | 2011-06-17 | Available |
| KS4UR | 12 | 51 | 2034-02-22 | — | Active |
| KS4US | 12 | 49 | 2034-07-14 | — | Active |
| KS4UT | 11 | 47 | 2024-10-24 | 2026-10-25 | Available |
| KS4UU | 12 | 51 | 2006-08-19 | 2008-08-20 | Available |
| KS4UV | 11 | 53 | 2014-07-15 | 2016-07-16 | Available |
| KS4UW | 11 | 53 | 2034-12-07 | — | Active |
| KS4UX | 11 | 55 | — | — | Available |
| KS4UY | 11 | 57 | 2023-09-17 | 2025-09-18 | Available |
| KS4UZ | 11 | 55 | 2002-08-18 | 2004-08-19 | Available |
| KS4VA | 10 | 51 | 2035-04-20 | — | Active |
| KS4VB | 10 | 55 | 2034-03-08 | — | Active |
| KS4VC | 10 | 57 | 2000-05-16 | 2002-05-17 | Available |
| KS4VD | 10 | 53 | — | — | Available |
| KS4VE | 10 | 47 | 2014-06-14 | 2016-06-15 | Available |
| KS4VF | 10 | 55 | 2000-11-17 | 2002-11-18 | Available |
| KS4VG | 9 | 55 | 2030-08-07 | — | Active |
| KS4VH | 10 | 53 | 2034-11-17 | — | Active |
| KS4VI | 11 | 49 | 2034-09-22 | — | Active |
| KS4VJ | 11 | 59 | 2027-06-09 | — | Active (Vanity) |
| KS4VK | 10 | 55 | 2020-03-27 | 2022-03-28 | Available |
| KS4VL | 10 | 55 | — | — | Available |
| KS4VM | 9 | 53 | 2014-10-18 | 2016-10-19 | Available |
| KS4VN | 11 | 51 | 1997-10-01 | 1999-10-02 | Available |
| KS4VO | 10 | 57 | 2022-04-07 | 2024-04-08 | Available |
| KS4VP | 10 | 57 | 2014-02-01 | 2016-02-02 | Available |
| KS4VQ | 10 | 59 | — | — | Available |
| KS4VR | 11 | 53 | 2036-03-18 | — | Active |
| KS4VS | 11 | 51 | 2024-09-27 | 2026-09-28 | Available |
| KS4VT | 10 | 49 | 2016-09-30 | 2018-10-01 | Available |
| KS4VU | 11 | 53 | 2034-07-14 | — | Active |
| KS4VV | 10 | 55 | — | — | Available |
| KS4VW | 10 | 55 | 2000-05-31 | 2002-06-01 | Available |
| KS4VX | 10 | 57 | 2026-11-04 | — | Active |
| KS4VY | 10 | 59 | 2033-06-01 | — | Active |
| KS4VZ | 10 | 57 | 2005-04-05 | 2007-04-06 | Available |
| KS4WA | 10 | 51 | 2032-06-23 | — | Active |
| KS4WB | 10 | 55 | — | — | Available |
| KS4WC | 10 | 57 | 2034-08-31 | — | Active |
| KS4WD | 10 | 53 | 2003-08-10 | 2005-08-11 | Available |
| KS4WE | 10 | 47 | 2034-11-08 | — | Active |
| KS4WF | 10 | 55 | 2032-08-04 | — | Active |
| KS4WG | 9 | 55 | 2005-05-08 | 2007-05-09 | Available |
| KS4WH | 10 | 53 | 2023-08-10 | 2025-08-11 | Available |
| KS4WI | 11 | 49 | 2024-03-05 | 2026-03-06 | Available |
| KS4WJ | 11 | 59 | 2005-01-27 | 2007-01-28 | Available |
| KS4WK | 10 | 55 | 2014-02-08 | 2016-02-09 | Available |
| KS4WL | 10 | 55 | 2004-10-25 | 2006-10-26 | Available |
| KS4WM | 9 | 53 | 2032-02-11 | — | Active |
| KS4WN | 11 | 51 | 2024-09-22 | 2026-09-23 | Available |
| KS4WO | 10 | 57 | — | — | Available |
| KS4WP | 10 | 57 | 2005-01-18 | 2007-01-19 | Available |
| KS4WQ | 10 | 59 | 2012-06-09 | 2014-06-10 | Available |
| KS4WR | 11 | 53 | 2013-09-21 | 2015-09-22 | Available |
| KS4WS | 11 | 51 | — | — | Available |
| KS4WT | 10 | 49 | — | — | Available |
| KS4WU | 11 | 53 | 2031-07-06 | — | Active |
| KS4WV | 10 | 55 | 2024-03-05 | 2026-03-06 | Available |
| KS4WW | 10 | 55 | 2033-06-28 | — | Active |
| KS4WX | 10 | 57 | 2023-05-18 | 2025-05-19 | Available |
| KS4WY | 10 | 59 | — | — | Available |
| KS4WZ | 10 | 57 | 2027-03-26 | — | Active |
| KS4XA | 10 | 53 | 1999-06-30 | 2001-07-01 | Available |
| KS4XB | 10 | 57 | 2005-02-01 | 2007-02-02 | Available |