District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4OYM | 8 | 63 | — | — | Available |
| K4OYN | 10 | 61 | — | — | Available |
| K4OYO | 9 | 67 | 2007-05-14 | 2009-05-15 | Available |
| K4OYP | 9 | 67 | — | — | Available |
| K4OYQ | 9 | 69 | — | — | Available |
| K4OYR | 10 | 63 | 2000-05-08 | 2002-05-09 | Available |
| K4OYS | 10 | 61 | — | — | Available |
| K4OYT | 9 | 59 | — | — | Available |
| K4OYU | 10 | 63 | — | — | Available |
| K4OYV | 9 | 65 | — | — | Available |
| K4OYW | 9 | 65 | 2033-11-10 | — | Active (Vanity) |
| K4OYX | 9 | 67 | — | — | Available |
| K4OYY | 9 | 69 | 2030-01-15 | — | Active (Vanity) |
| K4OYZ | 9 | 67 | — | — | Available |
| K4OZA | 9 | 59 | — | — | Available |
| K4OZB | 9 | 63 | — | — | Available |
| K4OZC | 9 | 65 | 2033-06-10 | — | Active (Vanity) |
| K4OZD | 9 | 61 | — | — | Available |
| K4OZE | 9 | 55 | 2030-05-07 | — | Active (Vanity) |
| K4OZF | 9 | 63 | 2012-04-10 | 2014-04-11 | Available |
| K4OZG | 8 | 63 | — | — | Available |
| K4OZH | 9 | 61 | — | — | Available |
| K4OZI | 10 | 57 | 2029-06-08 | — | Active (Vanity) |
| K4OZJ | 10 | 67 | — | — | Available |
| K4OZK | 9 | 63 | 2030-06-01 | — | Active (Vanity) |
| K4OZL | 9 | 63 | 2016-08-13 | 2018-08-14 | Available |
| K4OZM | 8 | 61 | — | — | Available |
| K4OZN | 10 | 59 | 2007-02-13 | 2009-02-14 | Available |
| K4OZO | 9 | 65 | 2018-03-20 | 2020-03-21 | Available |
| K4OZP | 9 | 65 | 2022-06-04 | 2024-06-05 | Available |
| K4OZQ | 9 | 67 | 2031-02-26 | — | Active |
| K4OZR | 10 | 61 | — | — | Available |
| K4OZS | 10 | 59 | 2036-11-04 | — | Active |
| K4OZT | 9 | 57 | — | — | Available |
| K4OZU | 10 | 61 | — | — | Available |
| K4OZV | 9 | 63 | — | — | Available |
| K4OZW | 9 | 63 | — | — | Available |
| K4OZX | 9 | 65 | 2018-02-26 | 2020-02-27 | Available |
| K4OZY | 9 | 67 | 2033-09-03 | — | Active (Vanity) |
| K4OZZ | 9 | 65 | 2027-06-20 | — | Active |
| K4PAA | 9 | 53 | 2032-09-07 | — | Active (Vanity) |
| K4PAB | 9 | 57 | 2032-02-17 | — | Active (Vanity) |
| K4PAC | 9 | 59 | 2029-05-26 | — | Active (Vanity) |
| K4PAD | 9 | 55 | 2031-01-29 | — | Active (Vanity) |
| K4PAE | 9 | 49 | — | — | Available |
| K4PAF | 9 | 57 | 2031-07-28 | — | Active (Vanity) |
| K4PAG | 8 | 57 | 2029-01-13 | — | Active (Vanity) |
| K4PAH | 9 | 55 | 2029-05-07 | — | Active (Vanity) |
| K4PAI | 10 | 51 | — | — | Available |
| K4PAJ | 10 | 61 | — | — | Available |
| K4PAK | 9 | 57 | 2006-02-09 | 2008-02-10 | Available |
| K4PAL | 9 | 57 | 2034-06-29 | — | Active (Vanity) |
| K4PAM | 8 | 55 | 2033-03-18 | — | Active (Vanity) |
| K4PAN | 10 | 53 | 2025-04-10 | — | Active (Vanity) |
| K4PAO | 9 | 59 | 2016-07-07 | 2018-07-08 | Available |
| K4PAP | 9 | 59 | 2028-04-22 | — | Active (Vanity) |
| K4PAQ | 9 | 61 | 2036-09-09 | — | Active (Vanity) |
| K4PAR | 10 | 55 | 2033-04-05 | — | Active (Vanity) |
| K4PAS | 10 | 53 | 2032-03-30 | — | Active (Vanity) |
| K4PAT | 9 | 51 | 2027-10-14 | — | Active (Vanity) |
| K4PAU | 10 | 55 | — | — | Available |
| K4PAV | 9 | 57 | 2024-03-10 | 2026-03-11 | Available |
| K4PAW | 9 | 57 | 2033-04-29 | — | Active (Vanity) |
| K4PAX | 9 | 59 | 2028-02-26 | — | Active (Vanity) |
| K4PAY | 9 | 61 | 2027-03-20 | — | Active (Vanity) |
| K4PAZ | 9 | 59 | 2028-01-04 | — | Active (Vanity) |
| K4PBA | 9 | 57 | — | — | Available |
| K4PBB | 9 | 61 | 2030-02-11 | — | Active (Vanity) |
| K4PBC | 9 | 63 | 2027-02-09 | — | Active (Vanity) |
| K4PBD | 9 | 59 | 2019-09-24 | 2021-09-25 | Available |
| K4PBE | 9 | 53 | — | — | Available |
| K4PBF | 9 | 61 | 2035-09-06 | — | Active |
| K4PBG | 8 | 61 | 2016-08-05 | 2018-08-06 | Available |
| K4PBH | 9 | 59 | 1997-11-03 | 1999-11-04 | Available |
| K4PBI | 10 | 55 | — | — | Available |
| K4PBJ | 10 | 65 | 2032-12-28 | — | Active (Vanity) |
| K4PBK | 9 | 61 | 2026-03-14 | — | Active |
| K4PBL | 9 | 61 | 2029-03-29 | — | Active (Vanity) |
| K4PBM | 8 | 59 | — | — | Available |
| K4PBN | 10 | 57 | 2027-11-24 | — | Active |
| K4PBO | 9 | 63 | 2031-05-17 | — | Active (Vanity) |
| K4PBP | 9 | 63 | 2025-11-28 | — | Active |
| K4PBQ | 9 | 65 | 2029-06-04 | — | Active (Vanity) |
| K4PBR | 10 | 59 | 2034-01-31 | — | Active (Vanity) |
| K4PBS | 10 | 57 | 2036-01-08 | — | Active (Vanity) |
| K4PBT | 9 | 55 | — | — | Available |
| K4PBU | 10 | 59 | — | — | Available |
| K4PBV | 9 | 61 | — | — | Available |
| K4PBW | 9 | 61 | 2026-11-22 | — | Active (Vanity) |
| K4PBX | 9 | 63 | 2032-07-06 | — | Active (Vanity) |
| K4PBY | 9 | 65 | 2012-01-24 | 2014-01-25 | Available |
| K4PBZ | 9 | 63 | — | — | Available |
| K4PCA | 9 | 59 | 2027-05-22 | — | Active |
| K4PCB | 9 | 63 | 2032-10-10 | — | Active (Vanity) |
| K4PCC | 9 | 65 | 2029-06-05 | — | Active (Vanity) |
| K4PCD | 9 | 61 | 2033-01-01 | — | Active (Vanity) |
| K4PCE | 9 | 55 | — | — | Available |
| K4PCF | 9 | 63 | 2031-06-22 | — | Active (Vanity) |
| K4PCG | 8 | 63 | 2033-08-19 | — | Active (Vanity) |
| K4PCH | 9 | 61 | 2034-01-10 | — | Active (Vanity) |