District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4BQI | 10 | 57 | — | — | Available |
| K4BQJ | 10 | 67 | — | — | Available |
| K4BQK | 9 | 63 | 2025-01-20 | — | Active |
| K4BQL | 9 | 63 | 2005-12-04 | 2007-12-05 | Available |
| K4BQM | 8 | 61 | — | — | Available |
| K4BQN | 10 | 59 | 2029-08-29 | — | Active (Vanity) |
| K4BQO | 9 | 65 | — | — | Available |
| K4BQP | 9 | 65 | 2028-09-03 | — | Active |
| K4BQQ | 9 | 67 | — | — | Available |
| K4BQR | 10 | 61 | — | — | Available |
| K4BQS | 10 | 59 | — | — | Available |
| K4BQT | 9 | 57 | 2008-01-26 | 2010-01-27 | Available |
| K4BQU | 10 | 61 | — | — | Available |
| K4BQV | 9 | 63 | 2028-12-23 | — | Active (Vanity) |
| K4BQW | 9 | 63 | — | — | Available |
| K4BQX | 9 | 65 | 2015-03-27 | 2017-03-28 | Available |
| K4BQY | 9 | 67 | — | — | Available |
| K4BQZ | 9 | 65 | 2014-07-15 | 2016-07-16 | Available |
| K4BRA | 10 | 53 | 2029-09-15 | — | Active (Vanity) |
| K4BRB | 10 | 57 | 2030-07-27 | — | Active (Vanity) |
| K4BRC | 10 | 59 | 2036-01-10 | — | Active (Vanity) |
| K4BRD | 10 | 55 | 2030-11-02 | — | Active (Vanity) |
| K4BRE | 10 | 49 | 2035-06-10 | — | Active (Vanity) |
| K4BRF | 10 | 57 | 2030-03-24 | — | Active (Vanity) |
| K4BRG | 9 | 57 | 2033-05-10 | — | Active (Vanity) |
| K4BRH | 10 | 55 | 2034-06-08 | — | Active (Vanity) |
| K4BRI | 11 | 51 | 2031-06-19 | — | Active (Vanity) |
| K4BRJ | 11 | 61 | 2027-05-18 | — | Active (Vanity) |
| K4BRK | 10 | 57 | 2025-03-24 | — | Active (Vanity) |
| K4BRL | 10 | 57 | 2035-07-03 | — | Active (Vanity) |
| K4BRM | 9 | 55 | 2035-12-09 | — | Active (Vanity) |
| K4BRN | 11 | 53 | 2030-10-14 | — | Active (Vanity) |
| K4BRO | 10 | 59 | 2028-04-11 | — | Active (Vanity) |
| K4BRP | 10 | 59 | 2019-03-17 | 2021-03-18 | Available |
| K4BRQ | 10 | 61 | — | — | Available |
| K4BRR | 11 | 55 | 2030-12-15 | — | Active (Vanity) |
| K4BRS | 11 | 53 | 2028-06-28 | — | Active (Vanity) |
| K4BRT | 10 | 51 | 2026-07-08 | — | Active (Vanity) |
| K4BRU | 11 | 55 | 2032-11-26 | — | Active (Vanity) |
| K4BRV | 10 | 57 | 2024-11-21 | — | Active (Vanity) |
| K4BRW | 10 | 57 | 2033-10-17 | — | Active (Vanity) |
| K4BRX | 10 | 59 | 2034-12-13 | — | Active (Vanity) |
| K4BRY | 10 | 61 | 2029-04-06 | — | Active (Vanity) |
| K4BRZ | 10 | 59 | 2036-06-13 | — | Active |
| K4BSA | 10 | 51 | 2027-01-25 | — | Active (Vanity) |
| K4BSB | 10 | 55 | 2036-03-25 | — | Active (Vanity) |
| K4BSC | 10 | 57 | 2027-11-20 | — | Active (Vanity) |
| K4BSD | 10 | 53 | 2034-09-14 | — | Active |
| K4BSE | 10 | 47 | 2027-04-14 | — | Active |
| K4BSF | 10 | 55 | 2026-06-29 | — | Active (Vanity) |
| K4BSG | 9 | 55 | 2028-09-23 | — | Active (Vanity) |
| K4BSH | 10 | 53 | 2030-03-24 | — | Active (Vanity) |
| K4BSI | 11 | 49 | 2028-02-05 | — | Active |
| K4BSJ | 11 | 59 | — | — | Available |
| K4BSK | 10 | 55 | 2036-02-05 | — | Active |
| K4BSL | 10 | 55 | 2024-12-12 | — | Active |
| K4BSM | 9 | 53 | 2035-05-06 | — | Active (Vanity) |
| K4BSN | 11 | 51 | 2028-12-29 | — | Active (Vanity) |
| K4BSO | 10 | 57 | 2026-12-10 | — | Active (Vanity) |
| K4BSP | 10 | 57 | 2025-09-11 | — | Active (Vanity) |
| K4BSQ | 10 | 59 | — | — | Available |
| K4BSR | 11 | 53 | 2026-06-14 | — | Active (Vanity) |
| K4BSS | 11 | 51 | 2027-06-12 | — | Active (Vanity) |
| K4BST | 10 | 49 | 2029-05-25 | — | Active (Vanity) |
| K4BSU | 11 | 53 | — | — | Available |
| K4BSV | 10 | 55 | — | — | Available |
| K4BSW | 10 | 55 | 2030-06-05 | — | Active (Vanity) |
| K4BSX | 10 | 57 | 2013-06-08 | 2015-06-09 | Available |
| K4BSY | 10 | 59 | 2035-08-04 | — | Active (Vanity) |
| K4BSZ | 10 | 57 | 2028-12-30 | — | Active (Vanity) |
| K4BTA | 9 | 49 | 2026-12-06 | — | Active (Vanity) |
| K4BTB | 9 | 53 | — | — | Available |
| K4BTC | 9 | 55 | 2032-03-05 | — | Active (Vanity) |
| K4BTD | 9 | 51 | — | — | Available |
| K4BTE | 9 | 45 | — | — | Available |
| K4BTF | 9 | 53 | — | — | Available |
| K4BTG | 8 | 53 | — | — | Available |
| K4BTH | 9 | 51 | 2032-12-18 | — | Active (Vanity) |
| K4BTI | 10 | 47 | — | — | Available |
| K4BTJ | 10 | 57 | — | — | Available |
| K4BTK | 9 | 53 | 2027-02-18 | — | Active |
| K4BTL | 9 | 53 | 2034-09-27 | — | Active (Vanity) |
| K4BTM | 8 | 51 | 2031-02-09 | — | Active (Vanity) |
| K4BTN | 10 | 49 | 2033-05-19 | — | Active (Vanity) |
| K4BTO | 9 | 55 | 2034-06-11 | — | Active (Vanity) |
| K4BTP | 9 | 55 | 2025-11-28 | — | Active |
| K4BTQ | 9 | 57 | — | — | Available |
| K4BTR | 10 | 51 | 2035-01-22 | — | Active (Vanity) |
| K4BTS | 10 | 49 | 2031-02-02 | — | Active (Vanity) |
| K4BTT | 9 | 47 | 2035-10-02 | — | Active (Vanity) |
| K4BTU | 10 | 51 | 2028-01-14 | — | Active (Vanity) |
| K4BTV | 9 | 53 | — | — | Available |
| K4BTW | 9 | 53 | 2030-10-10 | — | Active (Vanity) |
| K4BTX | 9 | 55 | 2031-05-22 | — | Active (Vanity) |
| K4BTY | 9 | 57 | 2032-03-10 | — | Active |
| K4BTZ | 9 | 55 | 2035-02-16 | — | Active |
| K4BUA | 10 | 53 | — | — | Available |
| K4BUB | 10 | 57 | 2031-10-23 | — | Active (Vanity) |
| K4BUC | 10 | 59 | 2031-11-16 | — | Active (Vanity) |
| K4BUD | 10 | 55 | 2027-09-26 | — | Active (Vanity) |