District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4CNK | 10 | 57 | 2030-12-04 | — | Active (Vanity) |
| K4CNL | 10 | 57 | — | — | Available |
| K4CNM | 9 | 55 | 2020-03-06 | 2022-03-07 | Available |
| K4CNN | 11 | 53 | 2029-10-22 | — | Active (Vanity) |
| K4CNO | 10 | 59 | 2022-01-10 | 2024-01-11 | Available |
| K4CNP | 10 | 59 | — | — | Available |
| K4CNQ | 10 | 61 | — | — | Available |
| K4CNR | 11 | 55 | 2033-08-04 | — | Active (Vanity) |
| K4CNS | 11 | 53 | 2027-06-27 | — | Active (Vanity) |
| K4CNT | 10 | 51 | 2033-06-23 | — | Active (Vanity) |
| K4CNU | 11 | 55 | 2007-06-17 | 2009-06-18 | Available |
| K4CNV | 10 | 57 | — | — | Available |
| K4CNW | 10 | 57 | 2020-09-25 | 2022-09-26 | Available |
| K4CNX | 10 | 59 | — | — | Available |
| K4CNY | 10 | 61 | 2031-07-06 | — | Active (Vanity) |
| K4CNZ | 10 | 59 | — | — | Available |
| K4COA | 9 | 59 | 2028-11-12 | — | Active (Vanity) |
| K4COB | 9 | 63 | 2030-01-28 | — | Active (Vanity) |
| K4COC | 9 | 65 | 2024-04-18 | 2026-04-19 | Available |
| K4COD | 9 | 61 | 2034-03-31 | — | Active (Vanity) |
| K4COE | 9 | 55 | 2028-06-10 | — | Active (Vanity) |
| K4COF | 9 | 63 | 2030-07-17 | — | Active (Vanity) |
| K4COG | 8 | 63 | 2028-10-26 | — | Active |
| K4COH | 9 | 61 | 2036-11-04 | — | Active |
| K4COI | 10 | 57 | — | — | Available |
| K4COJ | 10 | 67 | 2027-08-18 | — | Active |
| K4COK | 9 | 63 | — | — | Available |
| K4COL | 9 | 63 | 2035-10-09 | — | Active (Vanity) |
| K4COM | 8 | 61 | 2028-12-09 | — | Active (Vanity) |
| K4CON | 10 | 59 | 2024-03-05 | 2026-03-06 | Available |
| K4COO | 9 | 65 | 2034-01-20 | — | Active (Vanity) |
| K4COP | 9 | 65 | 2032-11-08 | — | Active (Vanity) |
| K4COQ | 9 | 67 | — | — | Available |
| K4COR | 10 | 61 | 2031-06-22 | — | Active (Vanity) |
| K4COS | 10 | 59 | 2024-03-23 | 2026-03-24 | Available |
| K4COT | 9 | 57 | — | — | Available |
| K4COU | 10 | 61 | 2031-03-23 | — | Active (Vanity) |
| K4COV | 9 | 63 | 2027-03-24 | — | Active (Vanity) |
| K4COW | 9 | 63 | 2027-03-28 | — | Active (Vanity) |
| K4COX | 9 | 65 | 2036-08-02 | — | Active (Vanity) |
| K4COY | 9 | 67 | 2018-08-17 | 2020-08-18 | Available |
| K4COZ | 9 | 65 | 2032-01-24 | — | Active (Vanity) |
| K4CPA | 9 | 59 | 2028-01-07 | — | Active (Vanity) |
| K4CPB | 9 | 63 | 2027-11-07 | — | Active (Vanity) |
| K4CPC | 9 | 65 | 2029-05-18 | — | Active (Vanity) |
| K4CPD | 9 | 61 | 2028-03-08 | — | Active (Vanity) |
| K4CPE | 9 | 55 | 2033-09-26 | — | Active (Vanity) |
| K4CPF | 9 | 63 | 2029-02-10 | — | Active (Vanity) |
| K4CPG | 8 | 63 | 2034-04-13 | — | Active (Vanity) |
| K4CPH | 9 | 61 | 2023-10-06 | 2025-10-07 | Available |
| K4CPI | 10 | 57 | — | — | Available |
| K4CPJ | 10 | 67 | 2030-10-13 | — | Active (Vanity) |
| K4CPK | 9 | 63 | — | — | Available |
| K4CPL | 9 | 63 | 2035-09-27 | — | Active (Vanity) |
| K4CPM | 8 | 61 | 2036-08-05 | — | Active (Vanity) |
| K4CPN | 10 | 59 | 2028-05-15 | — | Active (Vanity) |
| K4CPO | 9 | 65 | 2027-08-14 | — | Active |
| K4CPP | 9 | 65 | — | — | Available |
| K4CPQ | 9 | 67 | 2019-02-03 | 2021-02-04 | Available |
| K4CPR | 10 | 61 | 2027-01-27 | — | Active |
| K4CPS | 10 | 59 | 2029-12-28 | — | Active (Vanity) |
| K4CPT | 9 | 57 | 2027-12-05 | — | Active (Vanity) |
| K4CPU | 10 | 61 | 2029-09-30 | — | Active (Vanity) |
| K4CPV | 9 | 63 | — | — | Available |
| K4CPW | 9 | 63 | 2027-02-12 | — | Active (Vanity) |
| K4CPX | 9 | 65 | 2027-10-16 | — | Active (Vanity) |
| K4CPY | 9 | 67 | 2014-11-23 | 2016-11-24 | Available |
| K4CPZ | 9 | 65 | 2031-11-02 | — | Active (Vanity) |
| K4CQA | 9 | 61 | 2025-03-02 | — | Active |
| K4CQB | 9 | 65 | 2028-05-16 | — | Active (Vanity) |
| K4CQC | 9 | 67 | 2015-06-23 | 2017-06-24 | Available |
| K4CQD | 9 | 63 | 2016-09-01 | 2018-09-02 | Available |
| K4CQE | 9 | 57 | 2024-03-09 | 2026-03-10 | Available |
| K4CQF | 9 | 65 | 2027-06-11 | — | Active |
| K4CQG | 8 | 65 | 2016-01-17 | 2018-01-18 | Available |
| K4CQH | 9 | 63 | — | — | Available |
| K4CQI | 10 | 59 | — | — | Available |
| K4CQJ | 10 | 69 | 2034-10-18 | — | Active |
| K4CQK | 9 | 65 | 2028-11-16 | — | Active |
| K4CQL | 9 | 65 | 2036-04-15 | — | Active |
| K4CQM | 8 | 63 | 2014-07-14 | 2016-07-15 | Available |
| K4CQN | 10 | 61 | — | — | Available |
| K4CQO | 9 | 67 | 2028-07-07 | — | Active (Vanity) |
| K4CQP | 9 | 67 | — | — | Available |
| K4CQQ | 9 | 69 | 2025-11-06 | — | Active |
| K4CQR | 10 | 63 | — | — | Available |
| K4CQS | 10 | 61 | — | — | Available |
| K4CQT | 9 | 59 | 2036-10-16 | — | Active (Vanity) |
| K4CQU | 10 | 63 | 2028-09-30 | — | Active (Vanity) |
| K4CQV | 9 | 65 | — | — | Available |
| K4CQW | 9 | 65 | 2011-06-28 | 2013-06-29 | Available |
| K4CQX | 9 | 67 | 2032-11-01 | — | Active (Vanity) |
| K4CQY | 9 | 69 | 2026-01-24 | — | Active (Vanity) |
| K4CQZ | 9 | 67 | — | — | Available |
| K4CRA | 10 | 55 | 2030-02-15 | — | Active (Vanity) |
| K4CRB | 10 | 59 | 2024-05-23 | 2026-05-24 | Available |
| K4CRC | 10 | 61 | 2026-02-17 | — | Active (Vanity) |
| K4CRD | 10 | 57 | 2025-09-07 | — | Active (Vanity) |
| K4CRE | 10 | 51 | 2035-04-05 | — | Active (Vanity) |
| K4CRF | 10 | 59 | 2029-07-02 | — | Active (Vanity) |