District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KT4EU | 10 | 43 | — | — | Available |
| KT4EV | 9 | 45 | — | — | Available |
| KT4EW | 9 | 45 | 2035-03-23 | — | Active |
| KT4EX | 9 | 47 | 2015-03-31 | 2017-04-01 | Available |
| KT4EY | 9 | 49 | 2013-01-26 | 2015-01-27 | Available |
| KT4EZ | 9 | 47 | 2015-07-12 | 2017-07-13 | Available |
| KT4FA | 9 | 49 | — | — | Available |
| KT4FB | 9 | 53 | — | — | Available |
| KT4FC | 9 | 55 | 2011-10-29 | 2013-10-30 | Available |
| KT4FD | 9 | 51 | 2032-02-11 | — | Active |
| KT4FE | 9 | 45 | 1998-12-11 | 2000-12-12 | Available |
| KT4FF | 9 | 53 | 2035-10-24 | — | Active |
| KT4FG | 8 | 53 | — | — | Available |
| KT4FH | 9 | 51 | 2033-03-23 | — | Active |
| KT4FI | 10 | 47 | 2034-07-14 | — | Active |
| KT4FJ | 10 | 57 | 2010-03-16 | 2012-03-17 | Available |
| KT4FK | 9 | 53 | 2002-08-19 | 2004-08-20 | Available |
| KT4FL | 9 | 53 | 2005-07-25 | 2007-07-26 | Available |
| KT4FM | 8 | 51 | 2036-06-28 | — | Active (Vanity) |
| KT4FN | 10 | 49 | 2005-10-31 | 2007-11-01 | Available |
| KT4FO | 9 | 55 | 2017-05-09 | 2019-05-10 | Available |
| KT4FP | 9 | 55 | 2034-08-30 | — | Active |
| KT4FQ | 9 | 57 | 2030-01-02 | — | Active |
| KT4FR | 10 | 51 | 2032-05-05 | — | Active |
| KT4FS | 10 | 49 | — | — | Available |
| KT4FT | 9 | 47 | — | — | Available |
| KT4FU | 10 | 51 | — | — | Available |
| KT4FV | 9 | 53 | 2005-04-20 | 2007-04-21 | Available |
| KT4FW | 9 | 53 | 2035-01-24 | — | Active |
| KT4FX | 9 | 55 | 2006-08-01 | 2008-08-02 | Available |
| KT4FY | 9 | 57 | 2031-10-29 | — | Active |
| KT4FZ | 9 | 55 | 2028-09-21 | — | Active |
| KT4GA | 8 | 49 | 2033-10-19 | — | Active |
| KT4GB | 8 | 53 | 2034-04-26 | — | Active |
| KT4GC | 8 | 55 | 1997-09-17 | 1999-09-18 | Available |
| KT4GD | 8 | 51 | — | — | Available |
| KT4GE | 8 | 45 | — | — | Available |
| KT4GF | 8 | 53 | 2031-04-14 | — | Active |
| KT4GG | 7 | 53 | 2025-09-17 | — | Active |
| KT4GH | 8 | 51 | 2034-12-31 | — | Active (Vanity) |
| KT4GI | 9 | 47 | 2025-04-28 | — | Active |
| KT4GJ | 9 | 57 | — | — | Available |
| KT4GK | 8 | 53 | — | — | Available |
| KT4GL | 8 | 53 | 2033-02-28 | — | Active (Vanity) |
| KT4GM | 7 | 51 | 2025-01-17 | — | Active |
| KT4GN | 9 | 49 | 2015-08-25 | 2017-08-26 | Available |
| KT4GO | 8 | 55 | — | — | Available |
| KT4GP | 8 | 55 | 1997-11-19 | 1999-11-20 | Available |
| KT4GQ | 8 | 57 | — | — | Available |
| KT4GR | 9 | 51 | 2034-10-28 | — | Active |
| KT4GS | 9 | 49 | 2036-03-30 | — | Active |
| KT4GT | 8 | 47 | 2034-09-04 | — | Active |
| KT4GU | 9 | 51 | — | — | Available |
| KT4GV | 8 | 53 | 2003-05-11 | 2005-05-12 | Available |
| KT4GW | 8 | 53 | 2023-06-01 | 2025-06-02 | Available |
| KT4GX | 8 | 55 | 2025-11-28 | — | Active |
| KT4GY | 8 | 57 | 2025-11-28 | — | Active |
| KT4GZ | 8 | 55 | 2014-04-05 | 2016-04-06 | Available |
| KT4HA | 9 | 47 | 2034-12-21 | — | Active |
| KT4HB | 9 | 51 | 1997-08-04 | 1999-08-05 | Available |
| KT4HC | 9 | 53 | 2024-12-08 | — | Active |
| KT4HD | 9 | 49 | — | — | Available |
| KT4HE | 9 | 43 | 2025-09-12 | — | Active |
| KT4HF | 9 | 51 | — | — | Available |
| KT4HG | 8 | 51 | 2015-09-29 | 2017-09-30 | Available |
| KT4HH | 9 | 49 | 2025-12-04 | — | Active |
| KT4HI | 10 | 45 | 2012-07-21 | 2014-07-22 | Available |
| KT4HJ | 10 | 55 | — | — | Available |
| KT4HK | 9 | 51 | 2006-01-06 | 2008-01-07 | Available |
| KT4HL | 9 | 51 | 2022-07-21 | 2024-07-22 | Available |
| KT4HM | 8 | 49 | 2023-09-21 | 2025-09-22 | Available |
| KT4HN | 10 | 47 | 2003-12-05 | 2005-12-06 | Available |
| KT4HO | 9 | 53 | — | — | Available |
| KT4HP | 9 | 53 | 2035-12-08 | — | Active |
| KT4HQ | 9 | 55 | 2024-05-29 | 2026-05-30 | Available |
| KT4HR | 10 | 49 | 2021-10-22 | 2023-10-23 | Available |
| KT4HS | 10 | 47 | 2025-07-07 | — | Active |
| KT4HT | 9 | 45 | 2035-12-13 | — | Active |
| KT4HU | 10 | 49 | 1998-05-10 | 2000-05-11 | Available |
| KT4HV | 9 | 51 | 2014-07-15 | 2016-07-16 | Available |
| KT4HW | 9 | 51 | 2009-10-10 | 2011-10-11 | Available |
| KT4HX | 9 | 53 | 2033-04-10 | — | Active |
| KT4HY | 9 | 55 | 2024-10-08 | 2026-10-09 | Available |
| KT4HZ | 9 | 53 | — | — | Available |
| KT4IA | 10 | 43 | 2025-04-20 | — | Active |
| KT4IB | 10 | 47 | 2033-09-14 | — | Active |
| KT4IC | 10 | 49 | 2023-04-06 | 2025-04-07 | Available |
| KT4ID | 10 | 45 | 2036-04-07 | — | Active (Vanity) |
| KT4IE | 10 | 39 | 2000-07-21 | 2002-07-22 | Available |
| KT4IF | 10 | 47 | — | — | Available |
| KT4IG | 9 | 47 | — | — | Available |
| KT4IH | 10 | 45 | — | — | Available |
| KT4II | 11 | 41 | 2032-02-15 | — | Active |
| KT4IJ | 11 | 51 | — | — | Available |
| KT4IK | 10 | 47 | 2032-05-05 | — | Active |
| KT4IL | 10 | 47 | 1997-10-16 | 1999-10-17 | Available |
| KT4IM | 9 | 45 | — | — | Available |
| KT4IN | 11 | 43 | 2015-01-21 | 2017-01-22 | Available |
| KT4IO | 10 | 49 | 2033-11-23 | — | Active |
| KT4IP | 10 | 49 | 2025-05-18 | — | Active |