District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4DOI | 10 | 53 | 2023-06-25 | 2025-06-26 | Available |
| K4DOJ | 10 | 63 | 2030-10-14 | — | Active (Vanity) |
| K4DOK | 9 | 59 | 2029-11-13 | — | Active (Vanity) |
| K4DOL | 9 | 59 | 2030-03-17 | — | Active (Vanity) |
| K4DOM | 8 | 57 | 2021-04-13 | 2023-04-14 | Available |
| K4DON | 10 | 55 | 2027-09-17 | — | Active (Vanity) |
| K4DOO | 9 | 61 | — | — | Available |
| K4DOP | 9 | 61 | — | — | Available |
| K4DOQ | 9 | 63 | — | — | Available |
| K4DOR | 10 | 57 | 2034-05-02 | — | Active (Vanity) |
| K4DOS | 10 | 55 | 2036-09-11 | — | Active (Vanity) |
| K4DOT | 9 | 53 | 2032-04-15 | — | Active (Vanity) |
| K4DOU | 10 | 57 | 2023-02-09 | 2025-02-10 | Available |
| K4DOV | 9 | 59 | 2028-10-23 | — | Active |
| K4DOW | 9 | 59 | 2035-10-20 | — | Active (Vanity) |
| K4DOX | 9 | 61 | 2026-04-05 | — | Active (Vanity) |
| K4DOY | 9 | 63 | 2016-12-12 | 2018-12-13 | Available |
| K4DOZ | 9 | 61 | 2024-12-13 | — | Active (Vanity) |
| K4DPA | 9 | 55 | 2028-03-30 | — | Active (Vanity) |
| K4DPB | 9 | 59 | — | — | Available |
| K4DPC | 9 | 61 | 2030-05-19 | — | Active (Vanity) |
| K4DPD | 9 | 57 | 2026-12-03 | — | Active (Vanity) |
| K4DPE | 9 | 51 | 2033-10-24 | — | Active (Vanity) |
| K4DPF | 9 | 59 | 2027-05-04 | — | Active (Vanity) |
| K4DPG | 8 | 59 | 2027-01-16 | — | Active |
| K4DPH | 9 | 57 | 2031-01-07 | — | Active (Vanity) |
| K4DPI | 10 | 53 | 2009-05-19 | 2011-05-20 | Available |
| K4DPJ | 10 | 63 | 2027-12-05 | — | Active (Vanity) |
| K4DPK | 9 | 59 | 2036-08-28 | — | Active |
| K4DPL | 9 | 59 | 2033-05-23 | — | Active (Vanity) |
| K4DPM | 8 | 57 | 2035-10-03 | — | Active (Vanity) |
| K4DPN | 10 | 55 | — | — | Available |
| K4DPO | 9 | 61 | — | — | Available |
| K4DPP | 9 | 61 | 2025-03-21 | — | Active |
| K4DPQ | 9 | 63 | — | — | Available |
| K4DPR | 10 | 57 | 2032-03-04 | — | Active (Vanity) |
| K4DPS | 10 | 55 | 2028-07-19 | — | Active (Vanity) |
| K4DPT | 9 | 53 | 2024-03-05 | 2026-03-06 | Available |
| K4DPU | 10 | 57 | 2030-01-26 | — | Active (Vanity) |
| K4DPV | 9 | 59 | 2027-03-12 | — | Active (Vanity) |
| K4DPW | 9 | 59 | 2027-03-06 | — | Active (Vanity) |
| K4DPX | 9 | 61 | 2031-06-12 | — | Active (Vanity) |
| K4DPY | 9 | 63 | — | — | Available |
| K4DPZ | 9 | 61 | 1999-04-08 | 2001-04-09 | Available |
| K4DQA | 9 | 57 | — | — | Available |
| K4DQB | 9 | 61 | — | — | Available |
| K4DQC | 9 | 63 | 2025-02-03 | — | Active |
| K4DQD | 9 | 59 | — | — | Available |
| K4DQE | 9 | 53 | — | — | Available |
| K4DQF | 9 | 61 | — | — | Available |
| K4DQG | 8 | 61 | — | — | Available |
| K4DQH | 9 | 59 | — | — | Available |
| K4DQI | 10 | 55 | — | — | Available |
| K4DQJ | 10 | 65 | — | — | Available |
| K4DQK | 9 | 61 | — | — | Available |
| K4DQL | 9 | 61 | 2031-03-16 | — | Active (Vanity) |
| K4DQM | 8 | 59 | 2031-02-02 | — | Active (Vanity) |
| K4DQN | 10 | 57 | — | — | Available |
| K4DQO | 9 | 63 | — | — | Available |
| K4DQP | 9 | 63 | 2028-11-20 | — | Active (Vanity) |
| K4DQQ | 9 | 65 | — | — | Available |
| K4DQR | 10 | 59 | — | — | Available |
| K4DQS | 10 | 57 | 2005-08-14 | 2007-08-15 | Available |
| K4DQT | 9 | 55 | — | — | Available |
| K4DQU | 10 | 59 | — | — | Available |
| K4DQV | 9 | 61 | — | — | Available |
| K4DQW | 9 | 61 | 2036-08-11 | — | Active (Vanity) |
| K4DQX | 9 | 63 | — | — | Available |
| K4DQY | 9 | 65 | — | — | Available |
| K4DQZ | 9 | 63 | — | — | Available |
| K4DRA | 10 | 51 | 2030-11-23 | — | Active (Vanity) |
| K4DRB | 10 | 55 | 2032-11-05 | — | Active (Vanity) |
| K4DRC | 10 | 57 | 2029-03-21 | — | Active (Vanity) |
| K4DRD | 10 | 53 | 2034-05-18 | — | Active |
| K4DRE | 10 | 47 | 2028-03-16 | — | Active (Vanity) |
| K4DRF | 10 | 55 | 2032-01-21 | — | Active |
| K4DRG | 9 | 55 | 2032-02-22 | — | Active (Vanity) |
| K4DRH | 10 | 53 | 2035-06-16 | — | Active (Vanity) |
| K4DRI | 11 | 49 | 2036-03-28 | — | Active (Vanity) |
| K4DRJ | 11 | 59 | 2025-11-24 | — | Active |
| K4DRK | 10 | 55 | 2028-08-19 | — | Active (Vanity) |
| K4DRL | 10 | 55 | 2026-03-14 | — | Active |
| K4DRM | 9 | 53 | 2028-11-06 | — | Active (Vanity) |
| K4DRN | 11 | 51 | 2027-02-17 | — | Active (Vanity) |
| K4DRO | 10 | 57 | 2036-06-05 | — | Active (Vanity) |
| K4DRP | 10 | 57 | 2026-12-24 | — | Active (Vanity) |
| K4DRQ | 10 | 59 | 2028-01-08 | — | Active |
| K4DRR | 11 | 53 | 2034-06-05 | — | Active (Vanity) |
| K4DRS | 11 | 51 | 2025-10-23 | — | Active (Vanity) |
| K4DRT | 10 | 49 | 2036-05-29 | — | Active (Vanity) |
| K4DRU | 11 | 53 | 2028-05-28 | — | Active (Vanity) |
| K4DRV | 10 | 55 | 2031-08-05 | — | Active (Vanity) |
| K4DRW | 10 | 55 | 2033-11-28 | — | Active (Vanity) |
| K4DRX | 10 | 57 | 2034-03-12 | — | Active (Vanity) |
| K4DRY | 10 | 59 | 2025-10-05 | — | Active |
| K4DRZ | 10 | 57 | 2033-01-21 | — | Active (Vanity) |
| K4DSA | 10 | 49 | 2023-06-28 | 2025-06-29 | Available |
| K4DSB | 10 | 53 | 2028-04-29 | — | Active (Vanity) |
| K4DSC | 10 | 55 | 2031-09-18 | — | Active (Vanity) |
| K4DSD | 10 | 51 | 2035-02-28 | — | Active |