District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KT4AY | 9 | 53 | 2026-03-24 | 2028-03-25 | Canceled (grace period) |
| KT4AZ | 9 | 51 | 2033-09-14 | — | Active |
| KT4BA | 9 | 49 | 2011-12-31 | 2014-01-01 | Available |
| KT4BB | 9 | 53 | 2034-03-30 | — | Active |
| KT4BC | 9 | 55 | 2034-01-04 | — | Active |
| KT4BD | 9 | 51 | 2034-07-09 | — | Active |
| KT4BE | 9 | 45 | — | — | Available |
| KT4BF | 9 | 53 | 2024-03-05 | 2026-03-06 | Available |
| KT4BG | 8 | 53 | — | — | Available |
| KT4BH | 9 | 51 | 2024-03-05 | 2026-03-06 | Available |
| KT4BI | 10 | 47 | 2026-05-14 | — | Active |
| KT4BJ | 10 | 57 | 2032-11-29 | — | Active |
| KT4BK | 9 | 53 | 2035-05-22 | — | Active (Vanity) |
| KT4BL | 9 | 53 | 2016-07-26 | 2018-07-27 | Available |
| KT4BM | 8 | 51 | 1997-09-22 | 1999-09-23 | Available |
| KT4BN | 10 | 49 | 2035-08-18 | — | Active |
| KT4BO | 9 | 55 | 2011-12-31 | 2014-01-01 | Available |
| KT4BP | 9 | 55 | — | — | Available |
| KT4BQ | 9 | 57 | 2002-07-02 | 2004-07-03 | Available |
| KT4BR | 10 | 51 | 2023-07-27 | 2025-07-28 | Available |
| KT4BS | 10 | 49 | 2000-01-25 | 2002-01-26 | Available |
| KT4BT | 9 | 47 | 2024-12-22 | — | Active |
| KT4BU | 10 | 51 | 2024-03-05 | 2026-03-06 | Available |
| KT4BV | 9 | 53 | — | — | Available |
| KT4BW | 9 | 53 | 2024-06-16 | 2026-06-17 | Available |
| KT4BX | 9 | 55 | 2036-07-06 | — | Active |
| KT4BY | 9 | 57 | 2020-01-01 | 2022-01-02 | Available |
| KT4BZ | 9 | 55 | 2034-04-12 | — | Active |
| KT4CA | 9 | 51 | 2025-08-16 | — | Active |
| KT4CB | 9 | 55 | 2024-10-18 | 2026-10-19 | Available |
| KT4CC | 9 | 57 | 2031-11-02 | — | Active (Vanity) |
| KT4CD | 9 | 53 | 2035-01-25 | — | Active |
| KT4CE | 9 | 47 | — | — | Available |
| KT4CF | 9 | 55 | — | — | Available |
| KT4CG | 8 | 55 | 2033-09-21 | — | Active |
| KT4CH | 9 | 53 | 2012-06-23 | 2014-06-24 | Available |
| KT4CI | 10 | 49 | — | — | Available |
| KT4CJ | 10 | 59 | — | — | Available |
| KT4CK | 9 | 55 | 2011-06-13 | 2013-06-14 | Available |
| KT4CL | 9 | 55 | 2035-03-11 | — | Active |
| KT4CM | 8 | 53 | 2035-05-10 | — | Active |
| KT4CN | 10 | 51 | 1998-12-09 | 2000-12-10 | Available |
| KT4CO | 9 | 57 | 2036-06-03 | — | Active (Vanity) |
| KT4CP | 9 | 57 | 2021-04-30 | 2023-05-01 | Available |
| KT4CQ | 9 | 59 | 2026-11-02 | — | Active |
| KT4CR | 10 | 53 | 2034-05-10 | — | Active |
| KT4CS | 10 | 51 | 2024-08-20 | 2026-08-21 | Available |
| KT4CT | 9 | 49 | — | — | Available |
| KT4CU | 10 | 53 | 2011-08-20 | 2013-08-21 | Available |
| KT4CV | 9 | 55 | 2034-03-08 | — | Active |
| KT4CW | 9 | 55 | 2032-01-05 | — | Active (Vanity) |
| KT4CX | 9 | 57 | 1997-08-11 | 1999-08-12 | Available |
| KT4CY | 9 | 59 | 2030-07-17 | — | Active |
| KT4CZ | 9 | 57 | — | — | Available |
| KT4DA | 9 | 47 | — | — | Available |
| KT4DB | 9 | 51 | 2035-09-06 | — | Active |
| KT4DC | 9 | 53 | 2032-07-21 | — | Active |
| KT4DD | 9 | 49 | 2033-01-26 | — | Active |
| KT4DE | 9 | 43 | 2005-03-22 | 2007-03-23 | Available |
| KT4DF | 9 | 51 | — | — | Available |
| KT4DG | 8 | 51 | 2024-04-12 | 2026-04-13 | Available |
| KT4DH | 9 | 49 | 2033-10-24 | — | Active |
| KT4DI | 10 | 45 | 2022-04-23 | 2024-04-24 | Available |
| KT4DJ | 10 | 55 | 2005-09-13 | 2007-09-14 | Available |
| KT4DK | 9 | 51 | 2003-03-21 | 2005-03-22 | Available |
| KT4DL | 9 | 51 | 2015-09-14 | 2017-09-15 | Available |
| KT4DM | 8 | 49 | 2034-11-05 | — | Active (Vanity) |
| KT4DN | 10 | 47 | 2004-12-22 | 2006-12-23 | Available |
| KT4DO | 9 | 53 | 2033-07-11 | — | Active |
| KT4DP | 9 | 53 | — | — | Available |
| KT4DQ | 9 | 55 | — | — | Available |
| KT4DR | 10 | 49 | 2013-03-16 | 2015-03-17 | Available |
| KT4DS | 10 | 47 | 2035-12-09 | — | Active (Vanity) |
| KT4DT | 9 | 45 | 2020-10-17 | 2022-10-18 | Available |
| KT4DU | 10 | 49 | 2025-11-15 | — | Active |
| KT4DV | 9 | 51 | 2005-09-19 | 2007-09-20 | Available |
| KT4DW | 9 | 51 | 2032-10-27 | — | Active |
| KT4DX | 9 | 53 | 2028-10-28 | — | Active (Vanity) |
| KT4DY | 9 | 55 | 2024-12-12 | — | Active |
| KT4DZ | 9 | 53 | 2035-04-15 | — | Active (Vanity) |
| KT4EA | 9 | 41 | — | — | Pending Application |
| KT4EB | 9 | 45 | 2013-02-23 | 2015-02-24 | Available |
| KT4EC | 9 | 47 | 2025-03-13 | — | Active |
| KT4ED | 9 | 43 | 2027-01-10 | — | Active (Vanity) |
| KT4EE | 9 | 37 | 2026-03-29 | — | Active (Vanity) |
| KT4EF | 9 | 45 | — | — | Available |
| KT4EG | 8 | 45 | — | — | Available |
| KT4EH | 9 | 43 | 2005-07-24 | 2007-07-25 | Available |
| KT4EI | 10 | 39 | — | — | Available |
| KT4EJ | 10 | 49 | 2020-09-11 | 2022-09-12 | Available |
| KT4EK | 9 | 45 | 2035-10-02 | — | Active |
| KT4EL | 9 | 45 | 2034-07-08 | — | Active |
| KT4EM | 8 | 43 | 2034-05-31 | — | Active |
| KT4EN | 10 | 41 | 2021-10-26 | 2023-10-27 | Available |
| KT4EO | 9 | 47 | 2000-05-17 | 2002-05-18 | Available |
| KT4EP | 9 | 47 | 2033-07-13 | — | Active |
| KT4EQ | 9 | 49 | 2000-08-15 | 2002-08-16 | Available |
| KT4ER | 10 | 43 | 2034-03-15 | — | Active |
| KT4ES | 10 | 41 | — | — | Available |
| KT4ET | 9 | 39 | 2028-11-23 | — | Active |