District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4BIQ | 10 | 57 | — | — | Available |
| K4BIR | 11 | 51 | 2034-07-23 | — | Active (Vanity) |
| K4BIS | 11 | 49 | 2025-06-30 | — | Active |
| K4BIT | 10 | 47 | 2032-08-21 | — | Active (Vanity) |
| K4BIU | 11 | 51 | — | — | Available |
| K4BIV | 10 | 53 | 2009-08-08 | 2011-08-09 | Available |
| K4BIW | 10 | 53 | 2019-02-14 | 2021-02-15 | Available |
| K4BIX | 10 | 55 | 2035-03-08 | — | Active (Vanity) |
| K4BIY | 10 | 57 | 2000-04-24 | 2002-04-25 | Available |
| K4BIZ | 10 | 55 | 2028-05-18 | — | Active (Vanity) |
| K4BJA | 10 | 59 | 2029-08-02 | — | Active (Vanity) |
| K4BJB | 10 | 63 | 2030-06-03 | — | Active (Vanity) |
| K4BJC | 10 | 65 | 2034-09-17 | — | Active (Vanity) |
| K4BJD | 10 | 61 | 2023-04-21 | 2025-04-22 | Available |
| K4BJE | 10 | 55 | — | — | Available |
| K4BJF | 10 | 63 | 2024-03-08 | 2026-03-09 | Available |
| K4BJG | 9 | 63 | — | — | Available |
| K4BJH | 10 | 61 | 2034-08-09 | — | Active (Vanity) |
| K4BJI | 11 | 57 | — | — | Available |
| K4BJJ | 11 | 67 | 2029-03-15 | — | Active (Vanity) |
| K4BJK | 10 | 63 | — | — | Available |
| K4BJL | 10 | 63 | 2028-01-08 | — | Active (Vanity) |
| K4BJM | 9 | 61 | 2029-09-04 | — | Active (Vanity) |
| K4BJN | 11 | 59 | — | — | Available |
| K4BJO | 10 | 65 | 2032-04-29 | — | Active (Vanity) |
| K4BJP | 10 | 65 | 2036-09-29 | — | Active (Vanity) |
| K4BJQ | 10 | 67 | — | — | Available |
| K4BJR | 11 | 61 | 2017-03-25 | 2019-03-26 | Available |
| K4BJS | 11 | 59 | 2035-04-07 | — | Active (Vanity) |
| K4BJT | 10 | 57 | — | — | Available |
| K4BJU | 11 | 61 | 2036-04-28 | — | Active (Vanity) |
| K4BJV | 10 | 63 | 2026-08-09 | — | Active |
| K4BJW | 10 | 63 | 2031-06-22 | — | Active (Vanity) |
| K4BJX | 10 | 65 | — | — | Available |
| K4BJY | 10 | 67 | — | — | Available |
| K4BJZ | 10 | 65 | — | — | Available |
| K4BKA | 9 | 55 | 2030-09-04 | — | Active (Vanity) |
| K4BKB | 9 | 59 | 2020-01-17 | 2022-01-18 | Available |
| K4BKC | 9 | 61 | 2035-06-24 | — | Active (Vanity) |
| K4BKD | 9 | 57 | 2026-11-04 | — | Active (Vanity) |
| K4BKE | 9 | 51 | — | — | Available |
| K4BKF | 9 | 59 | 2033-08-08 | — | Active (Vanity) |
| K4BKG | 8 | 59 | 2030-10-30 | — | Active (Vanity) |
| K4BKH | 9 | 57 | 2036-02-12 | — | Active (Vanity) |
| K4BKI | 10 | 53 | 2027-07-21 | — | Active |
| K4BKJ | 10 | 63 | — | — | Available |
| K4BKK | 9 | 59 | 2034-08-17 | — | Active (Vanity) |
| K4BKL | 9 | 59 | 2032-01-25 | — | Active (Vanity) |
| K4BKM | 8 | 57 | 2029-06-22 | — | Active (Vanity) |
| K4BKN | 10 | 55 | — | — | Available |
| K4BKO | 9 | 61 | — | — | Available |
| K4BKP | 9 | 61 | — | — | Available |
| K4BKQ | 9 | 63 | 2025-01-17 | — | Active |
| K4BKR | 10 | 57 | 2032-11-16 | — | Active (Vanity) |
| K4BKS | 10 | 55 | 2023-04-22 | 2025-04-23 | Available |
| K4BKT | 9 | 53 | 2034-04-13 | — | Active (Vanity) |
| K4BKU | 10 | 57 | — | — | Available |
| K4BKV | 9 | 59 | 2034-04-20 | — | Active (Vanity) |
| K4BKW | 9 | 59 | — | — | Available |
| K4BKX | 9 | 61 | 2032-04-30 | — | Active (Vanity) |
| K4BKY | 9 | 63 | 2028-12-07 | — | Active (Vanity) |
| K4BKZ | 9 | 61 | 2032-01-25 | — | Active (Vanity) |
| K4BLA | 9 | 55 | 2034-11-13 | — | Active (Vanity) |
| K4BLB | 9 | 59 | 2033-11-30 | — | Active (Vanity) |
| K4BLC | 9 | 61 | 2028-10-05 | — | Active (Vanity) |
| K4BLD | 9 | 57 | 2027-09-08 | — | Active (Vanity) |
| K4BLE | 9 | 51 | 2033-05-10 | — | Active (Vanity) |
| K4BLF | 9 | 59 | 2036-03-24 | — | Active (Vanity) |
| K4BLG | 8 | 59 | 2031-06-15 | — | Active (Vanity) |
| K4BLH | 9 | 57 | 2030-10-14 | — | Active (Vanity) |
| K4BLI | 10 | 53 | — | — | Available |
| K4BLJ | 10 | 63 | 2026-03-01 | — | Active (Vanity) |
| K4BLK | 9 | 59 | 2031-12-10 | — | Active (Vanity) |
| K4BLL | 9 | 59 | 2036-01-10 | — | Active (Vanity) |
| K4BLM | 8 | 57 | 2032-04-10 | — | Active (Vanity) |
| K4BLN | 10 | 55 | — | — | Available |
| K4BLO | 9 | 61 | 2030-05-29 | — | Active (Vanity) |
| K4BLP | 9 | 61 | 2031-12-09 | — | Active (Vanity) |
| K4BLQ | 9 | 63 | — | — | Available |
| K4BLR | 10 | 57 | 2028-01-14 | — | Active (Vanity) |
| K4BLS | 10 | 55 | 2028-01-13 | — | Active |
| K4BLT | 9 | 53 | 2027-02-14 | — | Active (Vanity) |
| K4BLU | 10 | 57 | 2033-10-17 | — | Active (Vanity) |
| K4BLV | 9 | 59 | 2034-05-31 | — | Active (Vanity) |
| K4BLW | 9 | 59 | 2036-08-12 | — | Active (Vanity) |
| K4BLX | 9 | 61 | 2036-06-13 | — | Active (Vanity) |
| K4BLY | 9 | 63 | 2024-09-21 | 2026-09-22 | Available |
| K4BLZ | 9 | 61 | 2035-01-14 | — | Active (Vanity) |
| K4BMA | 8 | 53 | 2029-06-29 | — | Active (Vanity) |
| K4BMB | 8 | 57 | 2025-09-19 | — | Active (Vanity) |
| K4BMC | 8 | 59 | 2030-09-23 | — | Active (Vanity) |
| K4BMD | 8 | 55 | 2027-09-09 | — | Active (Vanity) |
| K4BME | 8 | 49 | 2024-05-31 | 2026-06-01 | Available |
| K4BMF | 8 | 57 | 2029-09-29 | — | Active |
| K4BMG | 7 | 57 | 2026-11-21 | — | Active (Vanity) |
| K4BMH | 8 | 55 | 2029-12-27 | — | Active (Vanity) |
| K4BMI | 9 | 51 | 2026-03-27 | 2028-03-28 | Canceled (grace period) |
| K4BMJ | 9 | 61 | 2029-08-02 | — | Active (Vanity) |
| K4BMK | 8 | 57 | 2032-03-18 | — | Active (Vanity) |
| K4BML | 8 | 57 | 2029-07-10 | — | Active (Vanity) |