District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KT4QI | 10 | 51 | 2035-07-12 | — | Active |
| KT4QJ | 10 | 61 | — | — | Available |
| KT4QK | 9 | 57 | — | — | Available |
| KT4QL | 9 | 57 | — | — | Available |
| KT4QM | 8 | 55 | 2006-01-12 | 2008-01-13 | Available |
| KT4QN | 10 | 53 | — | — | Available |
| KT4QO | 9 | 59 | 2004-02-15 | 2006-02-16 | Available |
| KT4QP | 9 | 59 | — | — | Available |
| KT4QQ | 9 | 61 | 2032-03-31 | — | Active |
| KT4QR | 10 | 55 | 1998-08-18 | 2000-08-19 | Available |
| KT4QS | 10 | 53 | — | — | Available |
| KT4QT | 9 | 51 | 2035-09-24 | — | Active |
| KT4QU | 10 | 55 | 2021-12-31 | 2024-01-01 | Available |
| KT4QV | 9 | 57 | — | — | Available |
| KT4QW | 9 | 57 | 2019-02-12 | 2021-02-13 | Available |
| KT4QX | 9 | 59 | 2026-07-13 | — | Active |
| KT4QY | 9 | 61 | 2014-02-15 | 2016-02-16 | Available |
| KT4QZ | 9 | 59 | 2004-01-04 | 2006-01-05 | Available |
| KT4RA | 10 | 47 | 2003-05-28 | 2005-05-29 | Available |
| KT4RB | 10 | 51 | — | — | Available |
| KT4RC | 10 | 53 | 2035-02-06 | — | Active |
| KT4RD | 10 | 49 | 2036-03-11 | — | Active |
| KT4RE | 10 | 43 | 2030-01-17 | — | Active (Vanity) |
| KT4RF | 10 | 51 | 2025-08-18 | — | Active |
| KT4RG | 9 | 51 | 1998-12-21 | 2000-12-22 | Available |
| KT4RH | 10 | 49 | 2035-10-25 | — | Active |
| KT4RI | 11 | 45 | 2005-05-04 | 2007-05-05 | Available |
| KT4RJ | 11 | 55 | 2020-03-14 | 2022-03-15 | Available |
| KT4RK | 10 | 51 | 2024-09-04 | 2026-09-05 | Available |
| KT4RL | 10 | 51 | 2007-08-07 | 2009-08-08 | Available |
| KT4RM | 9 | 49 | 2035-06-10 | — | Active |
| KT4RN | 11 | 47 | 2015-10-06 | 2017-10-07 | Available |
| KT4RO | 10 | 53 | 1997-10-16 | 1999-10-17 | Available |
| KT4RP | 10 | 53 | 2035-08-12 | — | Active (Vanity) |
| KT4RQ | 10 | 55 | 2004-05-03 | 2006-05-04 | Available |
| KT4RR | 11 | 49 | 2021-01-05 | 2023-01-06 | Available |
| KT4RS | 11 | 47 | 2035-06-06 | — | Active (Vanity) |
| KT4RT | 10 | 45 | — | — | Pending Application |
| KT4RU | 11 | 49 | 2006-06-05 | 2008-06-06 | Available |
| KT4RV | 10 | 51 | 2000-08-15 | 2002-08-16 | Available |
| KT4RW | 10 | 51 | 2024-05-17 | 2026-05-18 | Available |
| KT4RX | 10 | 53 | 2035-09-25 | — | Active |
| KT4RY | 10 | 55 | — | — | Available |
| KT4RZ | 10 | 53 | — | — | Available |
| KT4SA | 10 | 45 | 1998-11-12 | 2000-11-13 | Available |
| KT4SB | 10 | 49 | 2032-06-23 | — | Active |
| KT4SC | 10 | 51 | — | — | Available |
| KT4SD | 10 | 47 | 1997-09-17 | 1999-09-18 | Available |
| KT4SE | 10 | 41 | — | — | Available |
| KT4SF | 10 | 49 | — | — | Available |
| KT4SG | 9 | 49 | 2034-03-29 | — | Active |
| KT4SH | 10 | 47 | 2035-12-23 | — | Active (Vanity) |
| KT4SI | 11 | 43 | — | — | Available |
| KT4SJ | 11 | 53 | 2034-12-15 | — | Active |
| KT4SK | 10 | 49 | 2032-02-04 | — | Active |
| KT4SL | 10 | 49 | 2025-03-12 | — | Active |
| KT4SM | 9 | 47 | 2005-01-29 | 2007-01-30 | Available |
| KT4SN | 11 | 45 | 2024-03-29 | 2026-03-30 | Available |
| KT4SO | 10 | 51 | 2006-11-18 | 2008-11-19 | Available |
| KT4SP | 10 | 51 | 2029-09-26 | — | Active |
| KT4SQ | 10 | 53 | 2032-07-07 | — | Active |
| KT4SR | 11 | 47 | — | — | Available |
| KT4SS | 11 | 45 | 2027-07-31 | — | Active (Vanity) |
| KT4ST | 10 | 43 | 2023-08-24 | 2025-08-25 | Available |
| KT4SU | 11 | 47 | 2014-12-12 | 2016-12-13 | Available |
| KT4SV | 10 | 49 | 2035-10-11 | — | Active |
| KT4SW | 10 | 49 | 2034-07-06 | — | Active (Vanity) |
| KT4SX | 10 | 51 | 2028-01-17 | — | Active |
| KT4SY | 10 | 53 | 2034-05-31 | — | Active |
| KT4SZ | 10 | 51 | 2001-01-13 | 2003-01-14 | Available |
| KT4TA | 9 | 43 | 2016-03-04 | 2018-03-05 | Available |
| KT4TB | 9 | 47 | 2033-06-06 | — | Active (Vanity) |
| KT4TC | 9 | 49 | 2027-04-04 | — | Active (Vanity) |
| KT4TD | 9 | 45 | 2035-06-21 | — | Active |
| KT4TE | 9 | 39 | 2024-03-05 | 2026-03-06 | Available |
| KT4TF | 9 | 47 | 2035-10-27 | — | Active |
| KT4TG | 8 | 47 | 2007-03-30 | 2009-03-31 | Available |
| KT4TH | 9 | 45 | 2016-04-12 | 2018-04-13 | Available |
| KT4TI | 10 | 41 | 2025-11-02 | — | Active |
| KT4TJ | 10 | 51 | 2036-05-02 | — | Active |
| KT4TK | 9 | 47 | 2036-01-12 | — | Active |
| KT4TL | 9 | 47 | 2035-07-21 | — | Active |
| KT4TM | 8 | 45 | 2026-05-29 | — | Active |
| KT4TN | 10 | 43 | 2031-12-28 | — | Active (Vanity) |
| KT4TO | 9 | 49 | 2015-12-07 | 2017-12-08 | Available |
| KT4TP | 9 | 49 | — | — | Available |
| KT4TQ | 9 | 51 | — | — | Available |
| KT4TR | 10 | 45 | 2035-09-29 | — | Active |
| KT4TS | 10 | 43 | 2035-11-21 | — | Active |
| KT4TT | 9 | 41 | 2036-10-15 | — | Active |
| KT4TU | 10 | 45 | 1998-10-05 | 2000-10-06 | Available |
| KT4TV | 9 | 47 | 2028-05-11 | — | Active |
| KT4TW | 9 | 47 | 2034-07-10 | — | Active |
| KT4TX | 9 | 49 | 2027-07-01 | — | Active (Vanity) |
| KT4TY | 9 | 51 | 2034-09-05 | — | Active |
| KT4TZ | 9 | 49 | 2027-07-18 | — | Active (Vanity) |
| KT4UA | 10 | 47 | 2036-09-29 | — | Active |
| KT4UB | 10 | 51 | 2022-02-21 | 2024-02-22 | Available |
| KT4UC | 10 | 53 | 2014-07-14 | 2016-07-15 | Available |
| KT4UD | 10 | 49 | 2024-05-31 | 2026-06-01 | Available |