District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4REI | 11 | 43 | 2024-11-22 | 2026-11-23 | Canceled (grace period) |
| K4REJ | 11 | 53 | 2036-02-13 | — | Active (Vanity) |
| K4REK | 10 | 49 | 2034-01-17 | — | Active (Vanity) |
| K4REL | 10 | 49 | 2031-03-26 | — | Active (Vanity) |
| K4REM | 9 | 47 | 2028-04-22 | — | Active (Vanity) |
| K4REN | 11 | 45 | 2033-10-14 | — | Active (Vanity) |
| K4REO | 10 | 51 | 2030-12-29 | — | Active (Vanity) |
| K4REP | 10 | 51 | 2032-10-12 | — | Active (Vanity) |
| K4REQ | 10 | 53 | 2036-08-28 | — | Active |
| K4RER | 11 | 47 | 2034-08-24 | — | Active (Vanity) |
| K4RES | 11 | 45 | 2030-08-19 | — | Active (Vanity) |
| K4RET | 10 | 43 | 2027-02-12 | — | Active (Vanity) |
| K4REU | 11 | 47 | 1998-07-12 | 2000-07-13 | Available |
| K4REV | 10 | 49 | 2029-03-11 | — | Active (Vanity) |
| K4REW | 10 | 49 | 2030-08-04 | — | Active (Vanity) |
| K4REX | 10 | 51 | 2028-05-06 | — | Active (Vanity) |
| K4REY | 10 | 53 | 2033-07-15 | — | Active (Vanity) |
| K4REZ | 10 | 51 | — | — | Available |
| K4RFA | 10 | 53 | 2035-12-30 | — | Active (Vanity) |
| K4RFB | 10 | 57 | 2002-12-18 | 2004-12-19 | Available |
| K4RFC | 10 | 59 | 2014-07-25 | 2016-07-26 | Available |
| K4RFD | 10 | 55 | 2026-07-24 | — | Active |
| K4RFE | 10 | 49 | 2028-04-29 | — | Active (Vanity) |
| K4RFF | 10 | 57 | 2033-07-26 | — | Active (Vanity) |
| K4RFG | 9 | 57 | 2030-11-21 | — | Active (Vanity) |
| K4RFH | 10 | 55 | 2032-03-05 | — | Active (Vanity) |
| K4RFI | 11 | 51 | 2029-06-29 | — | Active |
| K4RFJ | 11 | 61 | 2029-02-20 | — | Active (Vanity) |
| K4RFK | 10 | 57 | 2028-05-20 | — | Active (Vanity) |
| K4RFL | 10 | 57 | 2033-01-11 | — | Active (Vanity) |
| K4RFM | 9 | 55 | 2028-08-14 | — | Active (Vanity) |
| K4RFN | 11 | 53 | 2021-07-20 | 2023-07-21 | Available |
| K4RFO | 10 | 59 | 2033-10-27 | — | Active (Vanity) |
| K4RFP | 10 | 59 | 2030-12-07 | — | Active (Vanity) |
| K4RFQ | 10 | 61 | 2016-04-05 | 2018-04-06 | Available |
| K4RFR | 11 | 55 | 2028-04-06 | — | Active (Vanity) |
| K4RFS | 11 | 53 | 2027-10-27 | — | Active (Vanity) |
| K4RFT | 10 | 51 | 2034-05-15 | — | Active (Vanity) |
| K4RFU | 11 | 55 | 2035-09-27 | — | Active (Vanity) |
| K4RFV | 10 | 57 | — | — | Available |
| K4RFW | 10 | 57 | 2030-11-14 | — | Active (Vanity) |
| K4RFX | 10 | 59 | 2024-11-08 | 2026-11-09 | Canceled (grace period) |
| K4RFY | 10 | 61 | — | — | Available |
| K4RFZ | 10 | 59 | — | — | Available |
| K4RGA | 9 | 53 | 2030-10-27 | — | Active (Vanity) |
| K4RGB | 9 | 57 | 2034-12-23 | — | Active (Vanity) |
| K4RGC | 9 | 59 | 2036-06-16 | — | Active (Vanity) |
| K4RGD | 9 | 55 | 2032-04-19 | — | Active (Vanity) |
| K4RGE | 9 | 49 | 2028-03-03 | — | Active (Vanity) |
| K4RGF | 9 | 57 | 2030-05-01 | — | Active (Vanity) |
| K4RGG | 8 | 57 | 2032-04-28 | — | Active (Vanity) |
| K4RGH | 9 | 55 | 2029-03-12 | — | Active (Vanity) |
| K4RGI | 10 | 51 | 1998-05-10 | 2000-05-11 | Available |
| K4RGJ | 10 | 61 | — | — | Available |
| K4RGK | 9 | 57 | 2034-06-14 | — | Active (Vanity) |
| K4RGL | 9 | 57 | 2031-04-08 | — | Active (Vanity) |
| K4RGM | 8 | 55 | 2019-12-18 | 2021-12-19 | Available |
| K4RGN | 10 | 53 | 2035-03-21 | — | Active (Vanity) |
| K4RGO | 9 | 59 | 2030-06-13 | — | Active (Vanity) |
| K4RGP | 9 | 59 | 2032-02-11 | — | Active (Vanity) |
| K4RGQ | 9 | 61 | — | — | Available |
| K4RGR | 10 | 55 | 2025-04-29 | — | Active (Vanity) |
| K4RGS | 10 | 53 | 2026-12-11 | — | Active |
| K4RGT | 9 | 51 | 2020-06-04 | 2022-06-05 | Available |
| K4RGU | 10 | 55 | — | — | Available |
| K4RGV | 9 | 57 | — | — | Available |
| K4RGW | 9 | 57 | 2029-02-07 | — | Active (Vanity) |
| K4RGX | 9 | 59 | — | — | Available |
| K4RGY | 9 | 61 | — | — | Available |
| K4RGZ | 9 | 59 | — | — | Available |
| K4RHA | 10 | 51 | 2018-07-24 | 2020-07-25 | Available |
| K4RHB | 10 | 55 | 2024-03-05 | 2026-03-06 | Available |
| K4RHC | 10 | 57 | 2035-09-02 | — | Active (Vanity) |
| K4RHD | 10 | 53 | 2036-12-29 | — | Active (Vanity) |
| K4RHE | 10 | 47 | 2031-10-13 | — | Active (Vanity) |
| K4RHF | 10 | 55 | 2034-03-02 | — | Active (Vanity) |
| K4RHG | 9 | 55 | 2032-08-10 | — | Active (Vanity) |
| K4RHH | 10 | 53 | 2027-06-04 | — | Active |
| K4RHI | 11 | 49 | 2036-05-12 | — | Active (Vanity) |
| K4RHJ | 11 | 59 | 2029-04-21 | — | Active (Vanity) |
| K4RHK | 10 | 55 | 2028-06-19 | — | Active (Vanity) |
| K4RHL | 10 | 55 | 2027-12-01 | — | Active (Vanity) |
| K4RHM | 9 | 53 | 2030-10-03 | — | Active (Vanity) |
| K4RHN | 11 | 51 | — | — | Available |
| K4RHO | 10 | 57 | 2028-03-03 | — | Active (Vanity) |
| K4RHP | 10 | 57 | — | — | Available |
| K4RHQ | 10 | 59 | 2017-12-22 | 2019-12-23 | Available |
| K4RHR | 11 | 53 | 2031-12-04 | — | Active (Vanity) |
| K4RHS | 11 | 51 | 2029-05-14 | — | Active (Vanity) |
| K4RHT | 10 | 49 | — | — | Available |
| K4RHU | 11 | 53 | — | — | Available |
| K4RHV | 10 | 55 | — | — | Available |
| K4RHW | 10 | 55 | 2008-05-05 | 2010-05-06 | Available |
| K4RHX | 10 | 57 | — | — | Available |
| K4RHY | 10 | 59 | 2026-11-20 | — | Active |
| K4RHZ | 10 | 57 | — | — | Available |
| K4RIA | 11 | 47 | — | — | Available |
| K4RIB | 11 | 51 | 2019-04-21 | 2021-04-22 | Available |
| K4RIC | 11 | 53 | 2036-06-02 | — | Active (Vanity) |
| K4RID | 11 | 49 | — | — | Available |