District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4RAM | 9 | 51 | 2028-01-14 | — | Active (Vanity) |
| K4RAN | 11 | 49 | 2027-04-24 | — | Active (Vanity) |
| K4RAO | 10 | 55 | — | — | Available |
| K4RAP | 10 | 55 | 2026-03-24 | — | Active (Vanity) |
| K4RAQ | 10 | 57 | 2030-05-12 | — | Active (Vanity) |
| K4RAR | 11 | 51 | 2029-03-05 | — | Active (Vanity) |
| K4RAS | 11 | 49 | 2030-05-04 | — | Active (Vanity) |
| K4RAT | 10 | 47 | 2027-08-25 | — | Active (Vanity) |
| K4RAU | 11 | 51 | 2021-07-15 | 2023-07-16 | Available |
| K4RAV | 10 | 53 | 2025-07-31 | — | Active (Vanity) |
| K4RAW | 10 | 53 | 2029-01-28 | — | Active (Vanity) |
| K4RAX | 10 | 55 | 2027-04-22 | — | Active (Vanity) |
| K4RAY | 10 | 57 | 2031-07-27 | — | Active (Vanity) |
| K4RAZ | 10 | 55 | 2033-04-14 | — | Active (Vanity) |
| K4RBA | 10 | 53 | 2013-04-11 | 2015-04-12 | Available |
| K4RBB | 10 | 57 | 2031-05-18 | — | Active (Vanity) |
| K4RBC | 10 | 59 | 2031-02-26 | — | Active (Vanity) |
| K4RBD | 10 | 55 | 2036-07-10 | — | Active (Vanity) |
| K4RBE | 10 | 49 | — | — | Available |
| K4RBF | 10 | 57 | 2027-07-07 | — | Active (Vanity) |
| K4RBG | 9 | 57 | — | — | Available |
| K4RBH | 10 | 55 | 2036-05-03 | — | Active (Vanity) |
| K4RBI | 11 | 51 | 2028-03-03 | — | Active (Vanity) |
| K4RBJ | 11 | 61 | 2025-11-18 | — | Active |
| K4RBK | 10 | 57 | 2032-09-27 | — | Active (Vanity) |
| K4RBL | 10 | 57 | 2033-12-02 | — | Active (Vanity) |
| K4RBM | 9 | 55 | 2030-05-02 | — | Active (Vanity) |
| K4RBN | 11 | 53 | 2027-11-28 | — | Active (Vanity) |
| K4RBO | 10 | 59 | — | — | Available |
| K4RBP | 10 | 59 | 2034-04-26 | — | Active |
| K4RBQ | 10 | 61 | — | — | Available |
| K4RBR | 11 | 55 | 2025-08-04 | — | Active (Vanity) |
| K4RBS | 11 | 53 | 2034-07-30 | — | Active (Vanity) |
| K4RBT | 10 | 51 | 2030-05-14 | — | Active (Vanity) |
| K4RBU | 11 | 55 | 2031-12-14 | — | Active (Vanity) |
| K4RBV | 10 | 57 | — | — | Available |
| K4RBW | 10 | 57 | 2031-06-11 | — | Active (Vanity) |
| K4RBX | 10 | 59 | — | — | Available |
| K4RBY | 10 | 61 | 2027-01-14 | — | Active (Vanity) |
| K4RBZ | 10 | 59 | 2036-01-17 | — | Active |
| K4RCA | 10 | 55 | 2027-09-17 | — | Active (Vanity) |
| K4RCB | 10 | 59 | 2035-05-16 | — | Active (Vanity) |
| K4RCC | 10 | 61 | 2032-03-28 | — | Active (Vanity) |
| K4RCD | 10 | 57 | 2036-11-05 | — | Active |
| K4RCE | 10 | 51 | 2026-07-22 | — | Active |
| K4RCF | 10 | 59 | 2028-02-17 | — | Active (Vanity) |
| K4RCG | 9 | 59 | 2029-07-25 | — | Active (Vanity) |
| K4RCH | 10 | 57 | 2028-04-03 | — | Active (Vanity) |
| K4RCI | 11 | 53 | 2033-12-06 | — | Active (Vanity) |
| K4RCJ | 11 | 63 | 2023-06-21 | 2025-06-22 | Available |
| K4RCK | 10 | 59 | 2034-06-11 | — | Active (Vanity) |
| K4RCL | 10 | 59 | 2030-02-15 | — | Active (Vanity) |
| K4RCM | 9 | 57 | 2028-05-20 | — | Active (Vanity) |
| K4RCN | 11 | 55 | 2029-07-09 | — | Active (Vanity) |
| K4RCO | 10 | 61 | 2030-01-16 | — | Active (Vanity) |
| K4RCP | 10 | 61 | 2032-07-23 | — | Active (Vanity) |
| K4RCQ | 10 | 63 | 2026-06-13 | — | Active |
| K4RCR | 11 | 57 | 2029-09-13 | — | Active (Vanity) |
| K4RCS | 11 | 55 | 2027-05-12 | — | Active (Vanity) |
| K4RCT | 10 | 53 | 2031-01-08 | — | Active (Vanity) |
| K4RCU | 11 | 57 | 2032-11-08 | — | Active (Vanity) |
| K4RCV | 10 | 59 | 2018-04-08 | 2020-04-09 | Available |
| K4RCW | 10 | 59 | 2030-05-18 | — | Active |
| K4RCX | 10 | 61 | 2034-10-04 | — | Active (Vanity) |
| K4RCY | 10 | 63 | 2036-08-15 | — | Active (Vanity) |
| K4RCZ | 10 | 61 | 2027-11-28 | — | Active |
| K4RDA | 10 | 51 | 2035-07-29 | — | Active (Vanity) |
| K4RDB | 10 | 55 | 2034-08-02 | — | Active (Vanity) |
| K4RDC | 10 | 57 | 2033-12-15 | — | Active (Vanity) |
| K4RDD | 10 | 53 | 2032-08-14 | — | Active (Vanity) |
| K4RDE | 10 | 47 | 2027-06-26 | — | Active (Vanity) |
| K4RDF | 10 | 55 | 2026-05-31 | — | Active (Vanity) |
| K4RDG | 9 | 55 | 2032-02-17 | — | Active (Vanity) |
| K4RDH | 10 | 53 | 2032-06-16 | — | Active (Vanity) |
| K4RDI | 11 | 49 | — | — | Available |
| K4RDJ | 11 | 59 | 2029-02-18 | — | Active (Vanity) |
| K4RDK | 10 | 55 | 2021-08-13 | 2023-08-14 | Available |
| K4RDL | 10 | 55 | 2036-12-06 | — | Active (Vanity) |
| K4RDM | 9 | 53 | 2026-02-07 | — | Active (Vanity) |
| K4RDN | 11 | 51 | 2036-12-23 | — | Active (Vanity) |
| K4RDO | 10 | 57 | 2027-10-20 | — | Active (Vanity) |
| K4RDP | 10 | 57 | 2034-04-30 | — | Active (Vanity) |
| K4RDQ | 10 | 59 | 2028-09-14 | — | Active (Vanity) |
| K4RDR | 11 | 53 | 2029-04-26 | — | Active |
| K4RDS | 11 | 51 | 2027-12-15 | — | Active (Vanity) |
| K4RDT | 10 | 49 | 2031-03-31 | — | Active (Vanity) |
| K4RDU | 11 | 53 | 2034-09-13 | — | Active |
| K4RDV | 10 | 55 | — | — | Available |
| K4RDW | 10 | 55 | 2019-06-30 | 2021-07-01 | Available |
| K4RDX | 10 | 57 | 2028-06-02 | — | Active (Vanity) |
| K4RDY | 10 | 59 | 2036-07-07 | — | Active (Vanity) |
| K4RDZ | 10 | 57 | 2029-09-27 | — | Active (Vanity) |
| K4REA | 10 | 45 | 2035-06-09 | — | Active (Vanity) |
| K4REB | 10 | 49 | 2028-11-17 | — | Active (Vanity) |
| K4REC | 10 | 51 | 2030-12-08 | — | Active (Vanity) |
| K4RED | 10 | 47 | 2031-01-22 | — | Active (Vanity) |
| K4REE | 10 | 41 | 2031-03-20 | — | Active (Vanity) |
| K4REF | 10 | 49 | 2029-07-31 | — | Active (Vanity) |
| K4REG | 9 | 49 | 2034-12-03 | — | Active (Vanity) |
| K4REH | 10 | 47 | 2022-12-10 | 2024-12-11 | Available |