District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KT4UE | 10 | 43 | 2034-03-08 | — | Active |
| KT4UF | 10 | 51 | 2008-09-12 | 2010-09-13 | Available |
| KT4UG | 9 | 51 | 2002-10-15 | 2004-10-16 | Available |
| KT4UH | 10 | 49 | — | — | Available |
| KT4UI | 11 | 45 | — | — | Available |
| KT4UJ | 11 | 55 | 2006-07-31 | 2008-08-01 | Available |
| KT4UK | 10 | 51 | 2026-06-17 | — | Active |
| KT4UL | 10 | 51 | 2010-09-17 | 2012-09-18 | Available |
| KT4UM | 9 | 49 | — | — | Available |
| KT4UN | 11 | 47 | 2006-08-05 | 2008-08-06 | Available |
| KT4UO | 10 | 53 | 2034-11-15 | — | Active |
| KT4UP | 10 | 53 | — | — | Available |
| KT4UQ | 10 | 55 | — | — | Available |
| KT4UR | 11 | 49 | — | — | Available |
| KT4US | 11 | 47 | 2014-01-04 | 2016-01-05 | Available |
| KT4UT | 10 | 45 | 2018-10-23 | 2020-10-24 | Available |
| KT4UU | 11 | 49 | 2026-02-22 | — | Active |
| KT4UV | 10 | 51 | 2022-11-16 | 2024-11-17 | Available |
| KT4UW | 10 | 51 | 2014-04-19 | 2016-04-20 | Available |
| KT4UX | 10 | 53 | 2035-03-29 | — | Active |
| KT4UY | 10 | 55 | 2036-09-15 | — | Active |
| KT4UZ | 10 | 53 | 2036-10-26 | — | Active |
| KT4VA | 9 | 49 | 2033-05-25 | — | Active |
| KT4VB | 9 | 53 | — | — | Available |
| KT4VC | 9 | 55 | 2028-10-27 | — | Active (Vanity) |
| KT4VD | 9 | 51 | — | — | Available |
| KT4VE | 9 | 45 | 2036-04-18 | — | Active |
| KT4VF | 9 | 53 | 1999-06-16 | 2001-06-17 | Available |
| KT4VG | 8 | 53 | 2014-05-31 | 2016-06-01 | Available |
| KT4VH | 9 | 51 | 2017-01-18 | 2019-01-19 | Available |
| KT4VI | 10 | 47 | 2021-03-05 | 2023-03-06 | Available |
| KT4VJ | 10 | 57 | 2004-10-18 | 2006-10-19 | Available |
| KT4VK | 9 | 53 | 2033-12-28 | — | Active |
| KT4VL | 9 | 53 | 2026-06-13 | 2028-06-14 | Canceled (grace period) |
| KT4VM | 8 | 51 | 1999-01-17 | 2001-01-18 | Available |
| KT4VN | 10 | 49 | 2022-08-04 | 2024-08-05 | Available |
| KT4VO | 9 | 55 | 1997-12-10 | 1999-12-11 | Available |
| KT4VP | 9 | 55 | 2033-12-21 | — | Active |
| KT4VQ | 9 | 57 | 2035-08-29 | — | Active |
| KT4VR | 10 | 51 | 2017-11-03 | 2019-11-04 | Available |
| KT4VS | 10 | 49 | 2026-09-17 | — | Active |
| KT4VT | 9 | 47 | 2021-11-06 | 2023-11-07 | Available |
| KT4VU | 10 | 51 | 2004-09-19 | 2006-09-20 | Available |
| KT4VV | 9 | 53 | 2034-02-16 | — | Active |
| KT4VW | 9 | 53 | 2031-04-12 | — | Active |
| KT4VX | 9 | 55 | 1998-07-28 | 2000-07-29 | Available |
| KT4VY | 9 | 57 | — | — | Available |
| KT4VZ | 9 | 55 | 2000-03-11 | 2002-03-12 | Available |
| KT4WA | 9 | 49 | 2028-08-26 | — | Active |
| KT4WB | 9 | 53 | 2027-11-21 | — | Active (Vanity) |
| KT4WC | 9 | 55 | 2036-06-13 | — | Active |
| KT4WD | 9 | 51 | 2031-05-11 | — | Active (Vanity) |
| KT4WE | 9 | 45 | 2032-11-17 | — | Active |
| KT4WF | 9 | 53 | 2005-02-16 | 2007-02-17 | Available |
| KT4WG | 8 | 53 | 2035-12-02 | — | Active |
| KT4WH | 9 | 51 | 2022-08-18 | 2024-08-19 | Available |
| KT4WI | 10 | 47 | 2032-06-09 | — | Active |
| KT4WJ | 10 | 57 | — | — | Available |
| KT4WK | 9 | 53 | 2014-04-19 | 2016-04-20 | Available |
| KT4WL | 9 | 53 | — | — | Available |
| KT4WM | 8 | 51 | 2027-03-07 | — | Active (Vanity) |
| KT4WN | 10 | 49 | 2035-04-15 | — | Active |
| KT4WO | 9 | 55 | 2031-10-08 | — | Active |
| KT4WP | 9 | 55 | 2034-10-24 | — | Active |
| KT4WQ | 9 | 57 | 1998-03-26 | 2000-03-27 | Available |
| KT4WR | 10 | 51 | — | — | Pending Application |
| KT4WS | 10 | 49 | 2024-03-05 | 2026-03-06 | Available |
| KT4WT | 9 | 47 | 2026-04-10 | 2028-04-11 | Canceled (grace period) |
| KT4WU | 10 | 51 | 1998-08-18 | 2000-08-19 | Available |
| KT4WV | 9 | 53 | 2026-02-09 | — | Active |
| KT4WW | 9 | 53 | 2016-08-02 | 2018-08-03 | Available |
| KT4WX | 9 | 55 | 2032-05-12 | — | Active |
| KT4WY | 9 | 57 | 2015-01-25 | 2017-01-26 | Available |
| KT4WZ | 9 | 55 | 2034-07-15 | — | Active |
| KT4XA | 9 | 51 | 2031-02-23 | — | Active (Vanity) |
| KT4XB | 9 | 55 | — | — | Available |
| KT4XC | 9 | 57 | 2006-11-01 | 2008-11-02 | Available |
| KT4XD | 9 | 53 | 2036-03-17 | — | Active |
| KT4XE | 9 | 47 | 1999-02-23 | 2001-02-24 | Available |
| KT4XF | 9 | 55 | 2028-05-18 | — | Active |
| KT4XG | 8 | 55 | 2015-01-20 | 2017-01-21 | Available |
| KT4XH | 9 | 53 | 2004-01-18 | 2006-01-19 | Available |
| KT4XI | 10 | 49 | 2025-09-24 | — | Active |
| KT4XJ | 10 | 59 | — | — | Available |
| KT4XK | 9 | 55 | 2034-10-14 | — | Active |
| KT4XL | 9 | 55 | 2035-03-04 | — | Active |
| KT4XM | 8 | 53 | — | — | Available |
| KT4XN | 10 | 51 | 2035-07-17 | — | Active |
| KT4XO | 9 | 57 | 2000-06-09 | 2002-06-10 | Available |
| KT4XP | 9 | 57 | 2016-11-05 | 2018-11-06 | Available |
| KT4XQ | 9 | 59 | 2027-03-15 | — | Active |
| KT4XR | 10 | 53 | 2024-03-05 | 2026-03-06 | Available |
| KT4XS | 10 | 51 | 2006-07-04 | 2008-07-05 | Available |
| KT4XT | 9 | 49 | 1997-10-15 | 1999-10-16 | Available |
| KT4XU | 10 | 53 | — | — | Available |
| KT4XV | 9 | 55 | 2005-08-10 | 2007-08-11 | Available |
| KT4XW | 9 | 55 | 2035-06-06 | — | Active |
| KT4XX | 9 | 57 | 2035-04-24 | — | Active (Vanity) |
| KT4XY | 9 | 59 | 2026-09-11 | 2028-09-12 | Canceled (grace period) |
| KT4XZ | 9 | 57 | 2010-06-26 | 2012-06-27 | Available |