District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4DCU | 10 | 57 | — | — | Available |
| K4DCV | 9 | 59 | — | — | Available |
| K4DCW | 9 | 59 | 2025-07-15 | — | Active |
| K4DCX | 9 | 61 | 2028-08-21 | — | Active (Vanity) |
| K4DCY | 9 | 63 | — | — | Available |
| K4DCZ | 9 | 61 | — | — | Available |
| K4DDA | 9 | 51 | 2036-03-27 | — | Active (Vanity) |
| K4DDB | 9 | 55 | 2036-04-22 | — | Active (Vanity) |
| K4DDC | 9 | 57 | 2025-09-29 | — | Active (Vanity) |
| K4DDD | 9 | 53 | 2027-12-07 | — | Active (Vanity) |
| K4DDE | 9 | 47 | 2035-10-16 | — | Active (Vanity) |
| K4DDF | 9 | 55 | 2010-03-28 | 2012-03-29 | Available |
| K4DDG | 8 | 55 | 2031-03-09 | — | Active (Vanity) |
| K4DDH | 9 | 53 | 2033-03-26 | — | Active (Vanity) |
| K4DDI | 10 | 49 | 2032-06-24 | — | Active (Vanity) |
| K4DDJ | 10 | 59 | 2016-06-29 | 2018-06-30 | Available |
| K4DDK | 9 | 55 | 2030-02-14 | — | Active (Vanity) |
| K4DDL | 9 | 55 | 2036-05-13 | — | Active (Vanity) |
| K4DDM | 8 | 53 | 2027-06-01 | — | Active (Vanity) |
| K4DDN | 10 | 51 | 2036-03-07 | — | Active (Vanity) |
| K4DDO | 9 | 57 | 2028-03-20 | — | Active (Vanity) |
| K4DDP | 9 | 57 | 2035-09-29 | — | Active (Vanity) |
| K4DDQ | 9 | 59 | 2014-10-31 | 2016-11-01 | Available |
| K4DDR | 10 | 53 | 2032-01-27 | — | Active (Vanity) |
| K4DDS | 10 | 51 | 2029-01-28 | — | Active (Vanity) |
| K4DDT | 9 | 49 | 2027-02-04 | — | Active (Vanity) |
| K4DDU | 10 | 53 | 2034-07-25 | — | Active (Vanity) |
| K4DDV | 9 | 55 | — | — | Available |
| K4DDW | 9 | 55 | 2032-11-04 | — | Active (Vanity) |
| K4DDX | 9 | 57 | 2035-03-10 | — | Active (Vanity) |
| K4DDY | 9 | 59 | 2027-08-01 | — | Active (Vanity) |
| K4DDZ | 9 | 57 | 2030-02-04 | — | Active (Vanity) |
| K4DEA | 9 | 45 | 2028-01-07 | — | Active (Vanity) |
| K4DEB | 9 | 49 | 2031-03-30 | — | Active (Vanity) |
| K4DEC | 9 | 51 | 2028-10-13 | — | Active (Vanity) |
| K4DED | 9 | 47 | 2028-10-06 | — | Active (Vanity) |
| K4DEE | 9 | 41 | 2034-08-23 | — | Active |
| K4DEF | 9 | 49 | 2036-06-02 | — | Active (Vanity) |
| K4DEG | 8 | 49 | 2032-03-12 | — | Active (Vanity) |
| K4DEH | 9 | 47 | 2017-10-28 | 2019-10-29 | Available |
| K4DEI | 10 | 43 | — | — | Available |
| K4DEJ | 10 | 53 | — | — | Available |
| K4DEK | 9 | 49 | 2021-05-07 | 2023-05-08 | Available |
| K4DEL | 9 | 49 | 2029-08-02 | — | Active (Vanity) |
| K4DEM | 8 | 47 | 2026-08-04 | — | Active |
| K4DEN | 10 | 45 | 2032-11-15 | — | Active (Vanity) |
| K4DEO | 9 | 51 | 2028-06-08 | — | Active (Vanity) |
| K4DEP | 9 | 51 | 2028-05-20 | — | Active (Vanity) |
| K4DEQ | 9 | 53 | 2031-03-30 | — | Active (Vanity) |
| K4DER | 10 | 47 | 2035-02-02 | — | Active |
| K4DES | 10 | 45 | 2025-07-12 | — | Active (Vanity) |
| K4DET | 9 | 43 | 2028-03-10 | — | Active (Vanity) |
| K4DEU | 10 | 47 | — | — | Available |
| K4DEV | 9 | 49 | 2030-04-07 | — | Active (Vanity) |
| K4DEW | 9 | 49 | 2035-11-22 | — | Active |
| K4DEX | 9 | 51 | 2035-01-14 | — | Active (Vanity) |
| K4DEY | 9 | 53 | 2023-06-01 | 2025-06-02 | Available |
| K4DEZ | 9 | 51 | 2025-05-09 | — | Active (Vanity) |
| K4DFA | 9 | 53 | — | — | Available |
| K4DFB | 9 | 57 | 2024-03-05 | 2026-03-06 | Available |
| K4DFC | 9 | 59 | 2025-02-28 | — | Active (Vanity) |
| K4DFD | 9 | 55 | 2031-11-23 | — | Active (Vanity) |
| K4DFE | 9 | 49 | — | — | Available |
| K4DFF | 9 | 57 | — | — | Available |
| K4DFG | 8 | 57 | 2029-01-28 | — | Active (Vanity) |
| K4DFH | 9 | 55 | 2028-06-02 | — | Active (Vanity) |
| K4DFI | 10 | 51 | 2028-01-21 | — | Active |
| K4DFJ | 10 | 61 | 2025-10-23 | — | Active (Vanity) |
| K4DFK | 9 | 57 | — | — | Available |
| K4DFL | 9 | 57 | 2026-08-10 | — | Active |
| K4DFM | 8 | 55 | 2029-12-27 | — | Active (Vanity) |
| K4DFN | 10 | 53 | — | — | Available |
| K4DFO | 9 | 59 | 2028-10-17 | — | Active (Vanity) |
| K4DFP | 9 | 59 | — | — | Available |
| K4DFQ | 9 | 61 | 2032-10-29 | — | Active (Vanity) |
| K4DFR | 10 | 55 | 2022-09-09 | 2024-09-10 | Available |
| K4DFS | 10 | 53 | 2029-06-15 | — | Active (Vanity) |
| K4DFT | 9 | 51 | 2035-07-01 | — | Active (Vanity) |
| K4DFU | 10 | 55 | 2005-04-25 | 2007-04-26 | Available |
| K4DFV | 9 | 57 | 2028-10-10 | — | Active (Vanity) |
| K4DFW | 9 | 57 | 2031-09-16 | — | Active (Vanity) |
| K4DFX | 9 | 59 | 2033-04-07 | — | Active (Vanity) |
| K4DFY | 9 | 61 | 2023-08-29 | 2025-08-30 | Available |
| K4DFZ | 9 | 59 | — | — | Available |
| K4DGA | 8 | 53 | 2026-07-11 | — | Active |
| K4DGB | 8 | 57 | 2023-09-07 | 2025-09-08 | Available |
| K4DGC | 8 | 59 | 2028-10-27 | — | Active (Vanity) |
| K4DGD | 8 | 55 | 2013-05-14 | 2015-05-15 | Available |
| K4DGE | 8 | 49 | 2027-02-10 | — | Active (Vanity) |
| K4DGF | 8 | 57 | — | — | Available |
| K4DGG | 7 | 57 | 2030-04-30 | — | Active (Vanity) |
| K4DGH | 8 | 55 | 2034-02-21 | — | Active (Vanity) |
| K4DGI | 9 | 51 | 2028-03-03 | — | Active (Vanity) |
| K4DGJ | 9 | 61 | 2035-07-05 | — | Active |
| K4DGK | 8 | 57 | — | — | Available |
| K4DGL | 8 | 57 | — | — | Available |
| K4DGM | 7 | 55 | 2033-09-23 | — | Active (Vanity) |
| K4DGN | 9 | 53 | 2031-10-01 | — | Active |
| K4DGO | 8 | 59 | 2020-07-03 | 2022-07-04 | Available |
| K4DGP | 8 | 59 | 2020-08-29 | 2022-08-30 | Available |