District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4ZHX | 9 | 61 | 2030-07-07 | — | Active (Vanity) |
| K4ZHY | 9 | 63 | — | — | Available |
| K4ZHZ | 9 | 61 | — | — | Available |
| K4ZIA | 10 | 51 | — | — | Available |
| K4ZIB | 10 | 55 | — | — | Available |
| K4ZIC | 10 | 57 | — | — | Available |
| K4ZID | 10 | 53 | — | — | Available |
| K4ZIE | 10 | 47 | 2004-10-14 | 2006-10-15 | Available |
| K4ZIF | 10 | 55 | — | — | Available |
| K4ZIG | 9 | 55 | — | — | Available |
| K4ZIH | 10 | 53 | — | — | Available |
| K4ZII | 11 | 49 | — | — | Available |
| K4ZIJ | 11 | 59 | — | — | Available |
| K4ZIK | 10 | 55 | — | — | Available |
| K4ZIL | 10 | 55 | — | — | Available |
| K4ZIM | 9 | 53 | 2036-03-28 | — | Active |
| K4ZIN | 11 | 51 | 2030-11-20 | — | Active |
| K4ZIO | 10 | 57 | — | — | Available |
| K4ZIP | 10 | 57 | 2028-11-13 | — | Active (Vanity) |
| K4ZIQ | 10 | 59 | — | — | Available |
| K4ZIR | 11 | 53 | 1998-10-25 | 2000-10-26 | Available |
| K4ZIS | 11 | 51 | 2030-07-24 | — | Active (Vanity) |
| K4ZIT | 10 | 49 | — | — | Available |
| K4ZIU | 11 | 53 | 2029-06-02 | — | Active |
| K4ZIV | 10 | 55 | 2034-07-09 | — | Active |
| K4ZIW | 10 | 55 | 2032-08-06 | — | Active (Vanity) |
| K4ZIX | 10 | 57 | — | — | Available |
| K4ZIY | 10 | 59 | — | — | Available |
| K4ZIZ | 10 | 57 | 2027-02-07 | — | Active (Vanity) |
| K4ZJA | 10 | 61 | — | — | Available |
| K4ZJB | 10 | 65 | 2019-09-26 | 2021-09-27 | Available |
| K4ZJC | 10 | 67 | 2032-06-08 | — | Active (Vanity) |
| K4ZJD | 10 | 63 | 2007-06-25 | 2009-06-26 | Available |
| K4ZJE | 10 | 57 | — | — | Available |
| K4ZJF | 10 | 65 | — | — | Available |
| K4ZJG | 9 | 65 | — | — | Available |
| K4ZJH | 10 | 63 | — | — | Available |
| K4ZJI | 11 | 59 | — | — | Available |
| K4ZJJ | 11 | 69 | 2035-07-08 | — | Active (Vanity) |
| K4ZJK | 10 | 65 | — | — | Available |
| K4ZJL | 10 | 65 | — | — | Available |
| K4ZJM | 9 | 63 | — | — | Available |
| K4ZJN | 11 | 61 | — | — | Available |
| K4ZJO | 10 | 67 | — | — | Available |
| K4ZJP | 10 | 67 | — | — | Available |
| K4ZJQ | 10 | 69 | — | — | Available |
| K4ZJR | 11 | 63 | — | — | Available |
| K4ZJS | 11 | 61 | — | — | Available |
| K4ZJT | 10 | 59 | — | — | Available |
| K4ZJU | 11 | 63 | — | — | Available |
| K4ZJV | 10 | 65 | — | — | Available |
| K4ZJW | 10 | 65 | — | — | Available |
| K4ZJX | 10 | 67 | — | — | Available |
| K4ZJY | 10 | 69 | — | — | Available |
| K4ZJZ | 10 | 67 | — | — | Available |
| K4ZKA | 9 | 57 | 2034-10-25 | — | Active (Vanity) |
| K4ZKB | 9 | 61 | — | — | Available |
| K4ZKC | 9 | 63 | 2002-03-24 | 2004-03-25 | Available |
| K4ZKD | 9 | 59 | 2036-02-10 | — | Active (Vanity) |
| K4ZKE | 9 | 53 | — | — | Available |
| K4ZKF | 9 | 61 | — | — | Available |
| K4ZKG | 8 | 61 | 2027-12-28 | — | Active (Vanity) |
| K4ZKH | 9 | 59 | — | — | Available |
| K4ZKI | 10 | 55 | — | — | Available |
| K4ZKJ | 10 | 65 | — | — | Available |
| K4ZKK | 9 | 61 | — | — | Available |
| K4ZKL | 9 | 61 | — | — | Available |
| K4ZKM | 8 | 59 | — | — | Available |
| K4ZKN | 10 | 57 | — | — | Available |
| K4ZKO | 9 | 63 | — | — | Available |
| K4ZKP | 9 | 63 | — | — | Available |
| K4ZKQ | 9 | 65 | 2014-03-29 | 2016-03-30 | Available |
| K4ZKR | 10 | 59 | — | — | Available |
| K4ZKS | 10 | 57 | 2024-11-23 | — | Active (Vanity) |
| K4ZKT | 9 | 55 | 1998-12-06 | 2000-12-07 | Available |
| K4ZKU | 10 | 59 | 2018-06-15 | 2020-06-16 | Available |
| K4ZKV | 9 | 61 | — | — | Available |
| K4ZKW | 9 | 61 | — | — | Available |
| K4ZKX | 9 | 63 | — | — | Available |
| K4ZKY | 9 | 65 | — | — | Available |
| K4ZKZ | 9 | 63 | 1998-02-26 | 2000-02-27 | Available |
| K4ZLA | 9 | 57 | 2034-04-26 | — | Active |
| K4ZLB | 9 | 61 | — | — | Available |
| K4ZLC | 9 | 63 | 2018-08-28 | 2020-08-29 | Available |
| K4ZLD | 9 | 59 | 2035-06-27 | — | Active |
| K4ZLE | 9 | 53 | 2036-06-13 | — | Active |
| K4ZLF | 9 | 61 | — | — | Available |
| K4ZLG | 8 | 61 | — | — | Available |
| K4ZLH | 9 | 59 | — | — | Available |
| K4ZLI | 10 | 55 | 2028-06-11 | — | Active |
| K4ZLJ | 10 | 65 | — | — | Available |
| K4ZLK | 9 | 61 | 2027-11-17 | — | Active (Vanity) |
| K4ZLL | 9 | 61 | 1997-12-01 | 1999-12-02 | Available |
| K4ZLM | 8 | 59 | 2027-06-10 | — | Active |
| K4ZLN | 10 | 57 | — | — | Available |
| K4ZLO | 9 | 63 | — | — | Available |
| K4ZLP | 9 | 63 | — | — | Available |
| K4ZLQ | 9 | 65 | 2005-12-08 | 2007-12-09 | Available |
| K4ZLR | 10 | 59 | 2027-11-25 | — | Active |
| K4ZLS | 10 | 57 | — | — | Available |