District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KK4NS | 11 | 51 | 1998-08-18 | 2000-08-19 | Available |
| KK4NT | 10 | 49 | 2006-02-05 | 2008-02-06 | Available |
| KK4NU | 11 | 53 | — | — | Available |
| KK4NV | 10 | 55 | 2024-03-05 | 2026-03-06 | Available |
| KK4NW | 10 | 55 | 2027-07-04 | — | Active (Vanity) |
| KK4NX | 10 | 57 | 2028-08-21 | — | Active |
| KK4NY | 10 | 59 | 2027-02-21 | — | Active |
| KK4NZ | 10 | 57 | 2000-06-24 | 2002-06-25 | Available |
| KK4OA | 9 | 57 | 2027-03-03 | — | Active |
| KK4OB | 9 | 61 | 2031-01-15 | — | Active |
| KK4OC | 9 | 63 | — | — | Available |
| KK4OD | 9 | 59 | — | — | Available |
| KK4OE | 9 | 53 | — | — | Available |
| KK4OF | 9 | 61 | — | — | Available |
| KK4OG | 8 | 61 | 2028-09-11 | — | Active |
| KK4OH | 9 | 59 | 2017-03-19 | 2019-03-20 | Available |
| KK4OI | 10 | 55 | — | — | Available |
| KK4OJ | 10 | 65 | 2027-05-20 | — | Active |
| KK4OK | 9 | 61 | 2027-09-26 | — | Active |
| KK4OL | 9 | 61 | 2023-01-12 | 2025-01-13 | Available |
| KK4OM | 8 | 59 | — | — | Available |
| KK4ON | 10 | 57 | 2017-12-08 | 2019-12-09 | Available |
| KK4OO | 9 | 63 | — | — | Available |
| KK4OP | 9 | 63 | — | — | Available |
| KK4OQ | 9 | 65 | 2004-05-24 | 2006-05-25 | Available |
| KK4OR | 10 | 59 | 2027-07-13 | — | Active |
| KK4OS | 10 | 57 | 2027-03-25 | — | Active |
| KK4OT | 9 | 55 | 2001-05-19 | 2003-05-20 | Available |
| KK4OU | 10 | 59 | 2024-03-05 | 2026-03-06 | Available |
| KK4OV | 9 | 61 | 2031-07-09 | — | Active |
| KK4OW | 9 | 61 | 2033-03-09 | — | Active (Vanity) |
| KK4OX | 9 | 63 | 1998-11-08 | 2000-11-09 | Available |
| KK4OY | 9 | 65 | 2011-07-16 | 2013-07-17 | Available |
| KK4OZ | 9 | 63 | 2003-08-13 | 2005-08-14 | Available |
| KK4PA | 9 | 57 | 2031-04-06 | — | Active |
| KK4PB | 9 | 61 | 2017-03-21 | 2019-03-22 | Available |
| KK4PC | 9 | 63 | 2034-03-08 | — | Active (Vanity) |
| KK4PD | 9 | 59 | — | — | Available |
| KK4PE | 9 | 53 | — | — | Available |
| KK4PF | 9 | 61 | 2028-03-23 | — | Active |
| KK4PG | 8 | 61 | 2034-02-10 | — | Active (Vanity) |
| KK4PH | 9 | 59 | 2027-07-21 | — | Active |
| KK4PI | 10 | 55 | 2025-03-14 | — | Active (Vanity) |
| KK4PJ | 10 | 65 | 2031-07-09 | — | Active |
| KK4PK | 9 | 61 | 2025-11-24 | — | Active |
| KK4PL | 9 | 61 | 2017-02-10 | 2019-02-11 | Available |
| KK4PM | 8 | 59 | 2027-02-10 | — | Active (Vanity) |
| KK4PN | 10 | 57 | — | — | Available |
| KK4PO | 9 | 63 | — | — | Available |
| KK4PP | 9 | 63 | 2035-04-07 | — | Active (Vanity) |
| KK4PQ | 9 | 65 | 2027-09-15 | — | Active |
| KK4PR | 10 | 59 | 2034-08-26 | — | Active (Vanity) |
| KK4PS | 10 | 57 | 2029-02-16 | — | Active |
| KK4PT | 9 | 55 | — | — | Available |
| KK4PU | 10 | 59 | 2017-05-07 | 2019-05-08 | Available |
| KK4PV | 9 | 61 | 2028-12-31 | — | Active |
| KK4PW | 9 | 61 | — | — | Available |
| KK4PX | 9 | 63 | 2028-01-21 | — | Active |
| KK4PY | 9 | 65 | 2036-07-21 | — | Active (Vanity) |
| KK4PZ | 9 | 63 | — | — | Available |
| KK4QA | 9 | 59 | 2034-12-31 | — | Active (Vanity) |
| KK4QB | 9 | 63 | 1997-08-25 | 1999-08-26 | Available |
| KK4QC | 9 | 65 | 2002-03-24 | 2004-03-25 | Available |
| KK4QD | 9 | 61 | — | — | Available |
| KK4QE | 9 | 55 | 2031-01-22 | — | Active |
| KK4QF | 9 | 63 | — | — | Available |
| KK4QG | 8 | 63 | 2007-05-27 | 2009-05-28 | Available |
| KK4QH | 9 | 61 | 1997-09-01 | 1999-09-02 | Available |
| KK4QI | 10 | 57 | 1999-03-17 | 2001-03-18 | Available |
| KK4QJ | 10 | 67 | 2027-05-29 | — | Active |
| KK4QK | 9 | 63 | 2027-06-17 | — | Active |
| KK4QL | 9 | 63 | 2031-12-31 | — | Active |
| KK4QM | 8 | 61 | — | — | Available |
| KK4QN | 10 | 59 | 2028-01-12 | — | Active |
| KK4QO | 9 | 65 | 2008-07-28 | 2010-07-29 | Available |
| KK4QP | 9 | 65 | — | — | Available |
| KK4QQ | 9 | 67 | — | — | Available |
| KK4QR | 10 | 61 | — | — | Available |
| KK4QS | 10 | 59 | 2024-03-05 | 2026-03-06 | Available |
| KK4QT | 9 | 57 | 2007-09-15 | 2009-09-16 | Available |
| KK4QU | 10 | 61 | — | — | Available |
| KK4QV | 9 | 63 | 2001-12-17 | 2003-12-18 | Available |
| KK4QW | 9 | 63 | — | — | Available |
| KK4QX | 9 | 65 | — | — | Available |
| KK4QY | 9 | 67 | 2004-02-21 | 2006-02-22 | Available |
| KK4QZ | 9 | 65 | — | — | Available |
| KK4RA | 10 | 53 | 2034-05-31 | — | Active |
| KK4RB | 10 | 57 | 2028-01-17 | — | Active (Vanity) |
| KK4RC | 10 | 59 | 2031-08-06 | — | Active |
| KK4RD | 10 | 55 | 2031-01-27 | — | Active |
| KK4RE | 10 | 49 | 2017-09-30 | 2019-10-01 | Available |
| KK4RF | 10 | 57 | 2028-10-09 | — | Active |
| KK4RG | 9 | 57 | — | — | Available |
| KK4RH | 10 | 55 | — | — | Available |
| KK4RI | 11 | 51 | 2031-05-14 | — | Active (Vanity) |
| KK4RJ | 11 | 61 | 2018-02-20 | 2020-02-21 | Available |
| KK4RK | 10 | 57 | 2010-10-16 | 2012-10-17 | Available |
| KK4RL | 10 | 57 | 2016-11-21 | 2018-11-22 | Available |
| KK4RM | 9 | 55 | 2017-05-28 | 2019-05-29 | Available |
| KK4RN | 11 | 53 | 2023-04-27 | 2025-04-28 | Available |