District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KT4MM | 7 | 49 | 2035-06-22 | — | Active |
| KT4MN | 9 | 47 | — | — | Pending Application |
| KT4MO | 8 | 53 | 2013-12-28 | 2015-12-29 | Available |
| KT4MP | 8 | 53 | 2034-07-12 | — | Active (Vanity) |
| KT4MQ | 8 | 55 | 2033-09-21 | — | Active |
| KT4MR | 9 | 49 | 2034-11-17 | — | Active |
| KT4MS | 9 | 47 | 2035-11-11 | — | Active |
| KT4MT | 8 | 45 | 2024-07-21 | 2026-07-22 | Available |
| KT4MU | 9 | 49 | 2026-11-29 | — | Active |
| KT4MV | 8 | 51 | 2022-07-23 | 2024-07-24 | Available |
| KT4MW | 8 | 51 | 2026-03-22 | — | Active |
| KT4MX | 8 | 53 | 2024-03-05 | 2026-03-06 | Available |
| KT4MY | 8 | 55 | 2003-09-14 | 2005-09-15 | Available |
| KT4MZ | 8 | 53 | 2011-12-01 | 2013-12-02 | Available |
| KT4NA | 10 | 45 | 2033-04-29 | — | Active (Vanity) |
| KT4NB | 10 | 49 | 2024-04-12 | 2026-04-13 | Available |
| KT4NC | 10 | 51 | 2035-06-02 | — | Active (Vanity) |
| KT4ND | 10 | 47 | 2025-03-01 | — | Active |
| KT4NE | 10 | 41 | 2010-05-05 | 2012-05-06 | Available |
| KT4NF | 10 | 49 | — | — | Available |
| KT4NG | 9 | 49 | 2026-03-25 | — | Active |
| KT4NH | 10 | 47 | 2005-11-21 | 2007-11-22 | Available |
| KT4NI | 11 | 43 | 2035-07-12 | — | Active |
| KT4NJ | 11 | 53 | — | — | Available |
| KT4NK | 10 | 49 | 2025-03-13 | — | Active |
| KT4NL | 10 | 49 | 2020-12-18 | 2022-12-19 | Available |
| KT4NM | 9 | 47 | 2021-06-19 | 2023-06-20 | Available |
| KT4NN | 11 | 45 | 2033-12-21 | — | Active |
| KT4NO | 10 | 51 | 2035-10-06 | — | Active |
| KT4NP | 10 | 51 | 2033-05-17 | — | Active |
| KT4NQ | 10 | 53 | 2013-02-16 | 2015-02-17 | Available |
| KT4NR | 11 | 47 | 2036-02-03 | — | Active (Vanity) |
| KT4NS | 11 | 45 | 2025-01-07 | — | Active |
| KT4NT | 10 | 43 | 2025-05-22 | — | Active |
| KT4NU | 11 | 47 | 2032-03-31 | — | Active |
| KT4NV | 10 | 49 | — | — | Available |
| KT4NW | 10 | 49 | 1997-12-10 | 1999-12-11 | Available |
| KT4NX | 10 | 51 | 2024-08-30 | 2026-08-31 | Available |
| KT4NY | 10 | 53 | 2033-04-27 | — | Active |
| KT4NZ | 10 | 51 | 2034-04-05 | — | Active |
| KT4OA | 9 | 51 | 2004-01-23 | 2006-01-24 | Available |
| KT4OB | 9 | 55 | 2024-03-05 | 2026-03-06 | Available |
| KT4OC | 9 | 57 | 2033-04-01 | — | Active (Vanity) |
| KT4OD | 9 | 53 | 2030-11-06 | — | Active |
| KT4OE | 9 | 47 | 2023-01-05 | 2025-01-06 | Available |
| KT4OF | 9 | 55 | 2012-11-18 | 2014-11-19 | Available |
| KT4OG | 8 | 55 | 2001-03-19 | 2003-03-20 | Available |
| KT4OH | 9 | 53 | — | — | Available |
| KT4OI | 10 | 49 | 2025-11-01 | — | Active |
| KT4OJ | 10 | 59 | — | — | Available |
| KT4OK | 9 | 55 | 2014-02-04 | 2016-02-05 | Available |
| KT4OL | 9 | 55 | 2014-03-29 | 2016-03-30 | Available |
| KT4OM | 8 | 53 | 2035-09-06 | — | Active |
| KT4ON | 10 | 51 | 2018-04-13 | 2020-04-14 | Available |
| KT4OO | 9 | 57 | 2033-03-02 | — | Active |
| KT4OP | 9 | 57 | 2006-02-16 | 2008-02-17 | Available |
| KT4OQ | 9 | 59 | — | — | Available |
| KT4OR | 10 | 53 | 2016-03-06 | 2018-03-07 | Available |
| KT4OS | 10 | 51 | 2033-05-18 | — | Active |
| KT4OT | 9 | 49 | 2035-06-12 | — | Active |
| KT4OU | 10 | 53 | 2003-11-14 | 2005-11-15 | Available |
| KT4OV | 9 | 55 | — | — | Available |
| KT4OW | 9 | 55 | 2005-01-23 | 2007-01-24 | Available |
| KT4OX | 9 | 57 | — | — | Available |
| KT4OY | 9 | 59 | — | — | Available |
| KT4OZ | 9 | 57 | 2027-12-19 | — | Active (Vanity) |
| KT4PA | 9 | 51 | 2014-09-07 | 2016-09-08 | Available |
| KT4PB | 9 | 55 | 2005-05-05 | 2007-05-06 | Available |
| KT4PC | 9 | 57 | 2025-03-17 | — | Active |
| KT4PD | 9 | 53 | 2026-04-29 | — | Active |
| KT4PE | 9 | 47 | — | — | Available |
| KT4PF | 9 | 55 | 1998-10-20 | 2000-10-21 | Available |
| KT4PG | 8 | 55 | — | — | Available |
| KT4PH | 9 | 53 | 2034-05-17 | — | Active |
| KT4PI | 10 | 49 | 1997-11-19 | 1999-11-20 | Available |
| KT4PJ | 10 | 59 | 2013-12-07 | 2015-12-08 | Available |
| KT4PK | 9 | 55 | — | — | Available |
| KT4PL | 9 | 55 | — | — | Available |
| KT4PM | 8 | 53 | 2035-10-14 | — | Active |
| KT4PN | 10 | 51 | 2028-01-04 | — | Active (Vanity) |
| KT4PO | 9 | 57 | — | — | Available |
| KT4PP | 9 | 57 | 2006-04-22 | 2008-04-23 | Available |
| KT4PQ | 9 | 59 | 2034-03-29 | — | Active |
| KT4PR | 10 | 53 | 2031-04-16 | — | Active (Vanity) |
| KT4PS | 10 | 51 | — | — | Available |
| KT4PT | 9 | 49 | 2033-12-21 | — | Active |
| KT4PU | 10 | 53 | — | — | Available |
| KT4PV | 9 | 55 | 2013-10-19 | 2015-10-20 | Available |
| KT4PW | 9 | 55 | 2014-04-12 | 2016-04-13 | Available |
| KT4PX | 9 | 57 | 2005-05-26 | 2007-05-27 | Available |
| KT4PY | 9 | 59 | 2021-06-04 | 2023-06-05 | Available |
| KT4PZ | 9 | 57 | — | — | Available |
| KT4QA | 9 | 53 | — | — | Available |
| KT4QB | 9 | 57 | 2012-10-13 | 2014-10-14 | Available |
| KT4QC | 9 | 59 | 2022-03-24 | 2024-03-25 | Available |
| KT4QD | 9 | 55 | 2036-01-17 | — | Active |
| KT4QE | 9 | 49 | — | — | Available |
| KT4QF | 9 | 57 | 2024-01-30 | 2026-01-31 | Available |
| KT4QG | 8 | 57 | 2000-06-06 | 2002-06-07 | Available |
| KT4QH | 9 | 55 | 2001-04-03 | 2003-04-04 | Available |