District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4ZPP | 9 | 65 | 2028-04-13 | — | Active (Vanity) |
| K4ZPQ | 9 | 67 | — | — | Available |
| K4ZPR | 10 | 61 | 2035-02-19 | — | Active (Vanity) |
| K4ZPS | 10 | 59 | 2004-07-09 | 2006-07-10 | Available |
| K4ZPT | 9 | 57 | — | — | Available |
| K4ZPU | 10 | 61 | — | — | Available |
| K4ZPV | 9 | 63 | — | — | Available |
| K4ZPW | 9 | 63 | 2033-03-17 | — | Active (Vanity) |
| K4ZPX | 9 | 65 | — | — | Available |
| K4ZPY | 9 | 67 | — | — | Available |
| K4ZPZ | 9 | 65 | 2029-01-27 | — | Active (Vanity) |
| K4ZQA | 9 | 61 | — | — | Available |
| K4ZQB | 9 | 65 | — | — | Available |
| K4ZQC | 9 | 67 | — | — | Available |
| K4ZQD | 9 | 63 | — | — | Available |
| K4ZQE | 9 | 57 | — | — | Available |
| K4ZQF | 9 | 65 | — | — | Available |
| K4ZQG | 8 | 65 | — | — | Available |
| K4ZQH | 9 | 63 | — | — | Available |
| K4ZQI | 10 | 59 | — | — | Available |
| K4ZQJ | 10 | 69 | — | — | Available |
| K4ZQK | 9 | 65 | — | — | Available |
| K4ZQL | 9 | 65 | 1998-09-06 | 2000-09-07 | Available |
| K4ZQM | 8 | 63 | 2025-05-04 | — | Active |
| K4ZQN | 10 | 61 | — | — | Available |
| K4ZQO | 9 | 67 | — | — | Available |
| K4ZQP | 9 | 67 | 2025-04-17 | — | Active |
| K4ZQQ | 9 | 69 | — | — | Available |
| K4ZQR | 10 | 63 | — | — | Available |
| K4ZQS | 10 | 61 | — | — | Available |
| K4ZQT | 9 | 59 | — | — | Available |
| K4ZQU | 10 | 63 | — | — | Available |
| K4ZQV | 9 | 65 | 2027-06-04 | — | Active |
| K4ZQW | 9 | 65 | 2008-06-03 | 2010-06-04 | Available |
| K4ZQX | 9 | 67 | 2024-05-31 | 2026-06-01 | Available |
| K4ZQY | 9 | 69 | — | — | Available |
| K4ZQZ | 9 | 67 | — | — | Available |
| K4ZRA | 10 | 55 | 2004-11-21 | 2006-11-22 | Available |
| K4ZRB | 10 | 59 | 2030-09-26 | — | Active (Vanity) |
| K4ZRC | 10 | 61 | — | — | Available |
| K4ZRD | 10 | 57 | 2026-01-26 | — | Active |
| K4ZRE | 10 | 51 | 2029-11-22 | — | Active (Vanity) |
| K4ZRF | 10 | 59 | — | — | Available |
| K4ZRG | 9 | 59 | — | — | Available |
| K4ZRH | 10 | 57 | 2027-06-03 | — | Active |
| K4ZRI | 11 | 53 | 2036-05-24 | — | Active (Vanity) |
| K4ZRJ | 11 | 63 | 2034-07-14 | — | Active |
| K4ZRK | 10 | 59 | 2031-03-20 | — | Active (Vanity) |
| K4ZRL | 10 | 59 | 2032-02-25 | — | Active (Vanity) |
| K4ZRM | 9 | 57 | 2029-11-26 | — | Active (Vanity) |
| K4ZRN | 11 | 55 | 2003-02-09 | 2005-02-10 | Available |
| K4ZRO | 10 | 61 | — | — | Available |
| K4ZRP | 10 | 61 | 2027-10-21 | — | Active |
| K4ZRQ | 10 | 63 | — | — | Available |
| K4ZRR | 11 | 57 | — | — | Available |
| K4ZRS | 11 | 55 | — | — | Available |
| K4ZRT | 10 | 53 | — | — | Available |
| K4ZRU | 11 | 57 | 2027-04-15 | — | Active |
| K4ZRV | 10 | 59 | — | — | Available |
| K4ZRW | 10 | 59 | 2022-04-05 | 2024-04-06 | Available |
| K4ZRX | 10 | 61 | 2030-07-01 | — | Active (Vanity) |
| K4ZRY | 10 | 63 | — | — | Available |
| K4ZRZ | 10 | 61 | — | — | Available |
| K4ZSA | 10 | 53 | 2032-09-09 | — | Active (Vanity) |
| K4ZSB | 10 | 57 | — | — | Available |
| K4ZSC | 10 | 59 | — | — | Available |
| K4ZSD | 10 | 55 | 1997-10-15 | 1999-10-16 | Available |
| K4ZSE | 10 | 49 | — | — | Available |
| K4ZSF | 10 | 57 | — | — | Available |
| K4ZSG | 9 | 57 | — | — | Available |
| K4ZSH | 10 | 55 | — | — | Available |
| K4ZSI | 11 | 51 | — | — | Available |
| K4ZSJ | 11 | 61 | — | — | Available |
| K4ZSK | 10 | 57 | 2005-11-24 | 2007-11-25 | Available |
| K4ZSL | 10 | 57 | — | — | Available |
| K4ZSM | 9 | 55 | — | — | Available |
| K4ZSN | 11 | 53 | — | — | Available |
| K4ZSO | 10 | 59 | — | — | Available |
| K4ZSP | 10 | 59 | — | — | Available |
| K4ZSQ | 10 | 61 | — | — | Available |
| K4ZSR | 11 | 55 | 2032-11-29 | — | Active (Vanity) |
| K4ZSS | 11 | 53 | — | — | Available |
| K4ZST | 10 | 51 | 2029-09-11 | — | Active (Vanity) |
| K4ZSU | 11 | 55 | — | — | Available |
| K4ZSV | 10 | 57 | — | — | Available |
| K4ZSW | 10 | 57 | 2028-09-01 | — | Active (Vanity) |
| K4ZSX | 10 | 59 | 2036-06-18 | — | Active (Vanity) |
| K4ZSY | 10 | 61 | — | — | Available |
| K4ZSZ | 10 | 59 | — | — | Available |
| K4ZTA | 9 | 51 | — | — | Available |
| K4ZTB | 9 | 55 | 2034-08-27 | — | Active (Vanity) |
| K4ZTC | 9 | 57 | — | — | Available |
| K4ZTD | 9 | 53 | 2017-05-29 | 2019-05-30 | Available |
| K4ZTE | 9 | 47 | — | — | Available |
| K4ZTF | 9 | 55 | 2027-10-31 | — | Active (Vanity) |
| K4ZTG | 8 | 55 | — | — | Available |
| K4ZTH | 9 | 53 | — | — | Available |
| K4ZTI | 10 | 49 | — | — | Available |
| K4ZTJ | 10 | 59 | — | — | Available |
| K4ZTK | 9 | 55 | — | — | Available |