District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KF4NW | 10 | 55 | 1998-09-06 | 2000-09-07 | Available |
| KF4NX | 10 | 57 | 2028-09-02 | — | Active |
| KF4NY | 10 | 59 | 2019-05-03 | 2021-05-04 | Available |
| KF4NZ | 10 | 57 | 2018-08-17 | 2020-08-18 | Available |
| KF4OA | 9 | 57 | — | — | Available |
| KF4OB | 9 | 61 | 2009-06-08 | 2011-06-09 | Available |
| KF4OC | 9 | 63 | 2015-06-02 | 2017-06-03 | Available |
| KF4OD | 9 | 59 | 2029-07-28 | — | Active |
| KF4OE | 9 | 53 | — | — | Available |
| KF4OF | 9 | 61 | 2008-11-10 | 2010-11-11 | Available |
| KF4OG | 8 | 61 | 2027-02-01 | — | Active |
| KF4OH | 9 | 59 | 2007-10-21 | 2009-10-22 | Available |
| KF4OI | 10 | 55 | 1998-09-06 | 2000-09-07 | Available |
| KF4OJ | 10 | 65 | 2007-02-06 | 2009-02-07 | Available |
| KF4OK | 9 | 61 | 2014-07-14 | 2016-07-15 | Available |
| KF4OL | 9 | 61 | — | — | Available |
| KF4OM | 8 | 59 | 2028-03-05 | — | Active |
| KF4ON | 10 | 57 | 2009-08-15 | 2011-08-16 | Available |
| KF4OO | 9 | 63 | — | — | Available |
| KF4OP | 9 | 63 | — | — | Available |
| KF4OQ | 9 | 65 | — | — | Available |
| KF4OR | 10 | 59 | 2007-03-23 | 2009-03-24 | Available |
| KF4OS | 10 | 57 | 2032-04-28 | — | Active |
| KF4OT | 9 | 55 | 1998-03-29 | 2000-03-30 | Available |
| KF4OU | 10 | 59 | 1998-11-18 | 2000-11-19 | Available |
| KF4OV | 9 | 61 | 2028-07-10 | — | Active |
| KF4OW | 9 | 61 | 2026-02-23 | — | Active |
| KF4OX | 9 | 63 | — | — | Available |
| KF4OY | 9 | 65 | 1999-02-10 | 2001-02-11 | Available |
| KF4OZ | 9 | 63 | — | — | Available |
| KF4PA | 9 | 57 | 1998-08-09 | 2000-08-10 | Available |
| KF4PB | 9 | 61 | 2018-03-20 | 2020-03-21 | Available |
| KF4PC | 9 | 63 | 2027-04-11 | — | Active (Vanity) |
| KF4PD | 9 | 59 | 2005-04-20 | 2007-04-21 | Available |
| KF4PE | 9 | 53 | — | — | Available |
| KF4PF | 9 | 61 | 2008-08-20 | 2010-08-21 | Available |
| KF4PG | 8 | 61 | 1997-12-17 | 1999-12-18 | Available |
| KF4PH | 9 | 59 | 2007-07-31 | 2009-08-01 | Available |
| KF4PI | 10 | 55 | 2026-02-08 | — | Active |
| KF4PJ | 10 | 65 | 2031-02-26 | — | Active |
| KF4PK | 9 | 61 | 2030-01-30 | — | Active (Vanity) |
| KF4PL | 9 | 61 | 2008-12-10 | 2010-12-11 | Available |
| KF4PM | 8 | 59 | 2008-09-01 | 2010-09-02 | Available |
| KF4PN | 10 | 57 | 2034-04-05 | — | Active |
| KF4PO | 9 | 63 | — | — | Available |
| KF4PP | 9 | 63 | — | — | Available |
| KF4PQ | 9 | 65 | — | — | Available |
| KF4PR | 10 | 59 | 2008-08-13 | 2010-08-14 | Available |
| KF4PS | 10 | 57 | 2028-08-21 | — | Active |
| KF4PT | 9 | 55 | 2008-08-04 | 2010-08-05 | Available |
| KF4PU | 10 | 59 | 2032-09-07 | — | Active |
| KF4PV | 9 | 61 | 2028-11-30 | — | Active |
| KF4PW | 9 | 61 | 2007-07-28 | 2009-07-29 | Available |
| KF4PX | 9 | 63 | 2034-06-05 | — | Active (Vanity) |
| KF4PY | 9 | 65 | — | — | Available |
| KF4PZ | 9 | 63 | 1998-07-26 | 2000-07-27 | Available |
| KF4QA | 9 | 59 | 2015-08-17 | 2017-08-18 | Available |
| KF4QB | 9 | 63 | 1997-09-08 | 1999-09-09 | Available |
| KF4QC | 9 | 65 | — | — | Available |
| KF4QD | 9 | 61 | 2007-09-12 | 2009-09-13 | Available |
| KF4QE | 9 | 55 | — | — | Available |
| KF4QF | 9 | 63 | — | — | Available |
| KF4QG | 8 | 63 | 2027-08-20 | — | Active |
| KF4QH | 9 | 61 | 2017-08-05 | 2019-08-06 | Available |
| KF4QI | 10 | 57 | — | — | Available |
| KF4QJ | 10 | 67 | — | — | Available |
| KF4QK | 9 | 63 | 2008-01-29 | 2010-01-30 | Available |
| KF4QL | 9 | 63 | — | — | Available |
| KF4QM | 8 | 61 | 2027-11-04 | — | Active |
| KF4QN | 10 | 59 | 2008-11-17 | 2010-11-18 | Available |
| KF4QO | 9 | 65 | — | — | Available |
| KF4QP | 9 | 65 | 1997-10-27 | 1999-10-28 | Available |
| KF4QQ | 9 | 67 | 2001-03-26 | 2003-03-27 | Available |
| KF4QR | 10 | 61 | 2028-01-02 | — | Active |
| KF4QS | 10 | 59 | 2006-04-01 | 2008-04-02 | Available |
| KF4QT | 9 | 57 | 1998-09-20 | 2000-09-21 | Available |
| KF4QU | 10 | 61 | — | — | Available |
| KF4QV | 9 | 63 | 2017-04-30 | 2019-05-01 | Available |
| KF4QW | 9 | 63 | 1998-07-15 | 2000-07-16 | Available |
| KF4QX | 9 | 65 | — | — | Available |
| KF4QY | 9 | 67 | 2018-07-23 | 2020-07-24 | Available |
| KF4QZ | 9 | 65 | 2010-03-13 | 2012-03-14 | Available |
| KF4RA | 10 | 53 | 2006-09-25 | 2008-09-26 | Available |
| KF4RB | 10 | 57 | 2023-01-27 | 2025-01-28 | Available |
| KF4RC | 10 | 59 | 2030-12-18 | — | Active (Vanity) |
| KF4RD | 10 | 55 | — | — | Available |
| KF4RE | 10 | 49 | — | — | Available |
| KF4RF | 10 | 57 | — | — | Available |
| KF4RG | 9 | 57 | 2025-11-28 | — | Active (Vanity) |
| KF4RH | 10 | 55 | 2028-04-15 | — | Active |
| KF4RI | 11 | 51 | — | — | Available |
| KF4RJ | 11 | 61 | 2033-01-19 | — | Active |
| KF4RK | 10 | 57 | 2000-03-11 | 2002-03-12 | Available |
| KF4RL | 10 | 57 | 2001-09-30 | 2003-10-01 | Available |
| KF4RM | 9 | 55 | — | — | Available |
| KF4RN | 11 | 53 | 1998-03-01 | 2000-03-02 | Available |
| KF4RO | 10 | 59 | 2028-01-14 | — | Active |
| KF4RP | 10 | 59 | 2017-10-21 | 2019-10-22 | Available |
| KF4RQ | 10 | 61 | 1997-10-20 | 1999-10-21 | Available |
| KF4RR | 11 | 55 | 2029-07-13 | — | Active |