District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4FQE | 9 | 55 | — | — | Available |
| K4FQF | 9 | 63 | 2025-08-23 | — | Active |
| K4FQG | 8 | 63 | 2006-02-28 | 2008-02-29 | Available |
| K4FQH | 9 | 61 | 2035-06-19 | — | Active (Vanity) |
| K4FQI | 10 | 57 | 2010-10-09 | 2012-10-10 | Available |
| K4FQJ | 10 | 67 | 2006-02-08 | 2008-02-09 | Available |
| K4FQK | 9 | 63 | 2035-09-20 | — | Active |
| K4FQL | 9 | 63 | — | — | Available |
| K4FQM | 8 | 61 | 1997-11-17 | 1999-11-18 | Available |
| K4FQN | 10 | 59 | — | — | Available |
| K4FQO | 9 | 65 | — | — | Available |
| K4FQP | 9 | 65 | 2003-08-09 | 2005-08-10 | Available |
| K4FQQ | 9 | 67 | — | — | Available |
| K4FQR | 10 | 61 | 2018-05-31 | 2020-06-01 | Available |
| K4FQS | 10 | 59 | — | — | Available |
| K4FQT | 9 | 57 | 2025-10-27 | — | Active (Vanity) |
| K4FQU | 10 | 61 | 2014-04-15 | 2016-04-16 | Available |
| K4FQV | 9 | 63 | — | — | Available |
| K4FQW | 9 | 63 | — | — | Available |
| K4FQX | 9 | 65 | 2019-11-07 | 2021-11-08 | Available |
| K4FQY | 9 | 67 | — | — | Available |
| K4FQZ | 9 | 65 | — | — | Available |
| K4FRA | 10 | 53 | 2034-10-10 | — | Active (Vanity) |
| K4FRB | 10 | 57 | 2008-11-25 | 2010-11-26 | Available |
| K4FRC | 10 | 59 | 2030-12-05 | — | Active (Vanity) |
| K4FRD | 10 | 55 | 2030-12-15 | — | Active (Vanity) |
| K4FRE | 10 | 49 | 2029-04-17 | — | Active (Vanity) |
| K4FRF | 10 | 57 | — | — | Available |
| K4FRG | 9 | 57 | 2030-07-14 | — | Active (Vanity) |
| K4FRH | 10 | 55 | 2033-05-12 | — | Active (Vanity) |
| K4FRI | 11 | 51 | — | — | Available |
| K4FRJ | 11 | 61 | 2015-08-09 | 2017-08-10 | Available |
| K4FRK | 10 | 57 | — | — | Available |
| K4FRL | 10 | 57 | 2031-11-09 | — | Active (Vanity) |
| K4FRM | 9 | 55 | 2028-12-09 | — | Active (Vanity) |
| K4FRN | 11 | 53 | 2036-08-02 | — | Active (Vanity) |
| K4FRO | 10 | 59 | 2031-01-26 | — | Active (Vanity) |
| K4FRP | 10 | 59 | 2027-10-06 | — | Active (Vanity) |
| K4FRQ | 10 | 61 | 2035-07-25 | — | Active |
| K4FRR | 11 | 55 | — | — | Available |
| K4FRS | 11 | 53 | 2033-05-16 | — | Active (Vanity) |
| K4FRT | 10 | 51 | 2024-07-08 | 2026-07-09 | Available |
| K4FRU | 11 | 55 | 2014-09-03 | 2016-09-04 | Available |
| K4FRV | 10 | 57 | 2004-09-09 | 2006-09-10 | Available |
| K4FRW | 10 | 57 | 2006-02-07 | 2008-02-08 | Available |
| K4FRX | 10 | 59 | — | — | Available |
| K4FRY | 10 | 61 | 2029-06-18 | — | Active (Vanity) |
| K4FRZ | 10 | 59 | 2028-04-21 | — | Active (Vanity) |
| K4FSA | 10 | 51 | 2032-04-05 | — | Active (Vanity) |
| K4FSB | 10 | 55 | 2027-07-14 | — | Active (Vanity) |
| K4FSC | 10 | 57 | 2034-05-14 | — | Active (Vanity) |
| K4FSD | 10 | 53 | 2005-06-19 | 2007-06-20 | Available |
| K4FSE | 10 | 47 | 2024-09-18 | 2026-09-19 | Available |
| K4FSF | 10 | 55 | 2008-01-21 | 2010-01-22 | Available |
| K4FSG | 9 | 55 | 2031-09-17 | — | Active (Vanity) |
| K4FSH | 10 | 53 | 2035-11-07 | — | Active (Vanity) |
| K4FSI | 11 | 49 | 2019-06-24 | 2021-06-25 | Available |
| K4FSJ | 11 | 59 | — | — | Available |
| K4FSK | 10 | 55 | 2034-12-07 | — | Active (Vanity) |
| K4FSL | 10 | 55 | 2015-03-13 | 2017-03-14 | Available |
| K4FSM | 9 | 53 | — | — | Available |
| K4FSN | 11 | 51 | 2007-07-27 | 2009-07-28 | Available |
| K4FSO | 10 | 57 | 2034-09-20 | — | Active (Vanity) |
| K4FSP | 10 | 57 | — | — | Available |
| K4FSQ | 10 | 59 | — | — | Available |
| K4FSR | 11 | 53 | — | — | Available |
| K4FSS | 11 | 51 | 2004-10-19 | 2006-10-20 | Available |
| K4FST | 10 | 49 | 2031-04-23 | — | Active (Vanity) |
| K4FSU | 11 | 53 | 2027-05-22 | — | Active |
| K4FSV | 10 | 55 | 2020-04-16 | 2022-04-17 | Available |
| K4FSW | 10 | 55 | 2005-12-12 | 2007-12-13 | Available |
| K4FSX | 10 | 57 | — | — | Available |
| K4FSY | 10 | 59 | 2004-04-19 | 2006-04-20 | Available |
| K4FSZ | 10 | 57 | — | — | Available |
| K4FTA | 9 | 49 | — | — | Available |
| K4FTB | 9 | 53 | — | — | Available |
| K4FTC | 9 | 55 | 2027-04-25 | — | Active |
| K4FTD | 9 | 51 | 2036-03-10 | — | Active (Vanity) |
| K4FTE | 9 | 45 | — | — | Available |
| K4FTF | 9 | 53 | 2030-04-21 | — | Active (Vanity) |
| K4FTG | 8 | 53 | 2002-04-10 | 2004-04-11 | Available |
| K4FTH | 9 | 51 | — | — | Available |
| K4FTI | 10 | 47 | — | — | Available |
| K4FTJ | 10 | 57 | — | — | Available |
| K4FTK | 9 | 53 | 2024-09-03 | 2026-09-04 | Available |
| K4FTL | 9 | 53 | 2026-10-20 | 2028-10-21 | Canceled (grace period) |
| K4FTM | 8 | 51 | 2007-03-07 | 2009-03-08 | Available |
| K4FTN | 10 | 49 | — | — | Available |
| K4FTO | 9 | 55 | 2036-05-31 | — | Active |
| K4FTP | 9 | 55 | 2035-04-10 | — | Active (Vanity) |
| K4FTQ | 9 | 57 | — | — | Available |
| K4FTR | 10 | 51 | 2031-05-01 | — | Active (Vanity) |
| K4FTS | 10 | 49 | 2017-06-23 | 2019-06-24 | Available |
| K4FTT | 9 | 47 | — | — | Available |
| K4FTU | 10 | 51 | 2036-10-14 | — | Active (Vanity) |
| K4FTV | 9 | 53 | 2031-09-03 | — | Active (Vanity) |
| K4FTW | 9 | 53 | 2029-02-22 | — | Active (Vanity) |
| K4FTX | 9 | 55 | 2032-01-15 | — | Active (Vanity) |
| K4FTY | 9 | 57 | 2036-06-17 | — | Active |
| K4FTZ | 9 | 55 | 2034-09-07 | — | Active (Vanity) |