District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KX4AU | 10 | 55 | 2026-01-12 | — | Active |
| KX4AV | 9 | 57 | 2027-02-15 | — | Active |
| KX4AW | 9 | 57 | 1998-07-15 | 2000-07-16 | Available |
| KX4AX | 9 | 59 | 2036-04-09 | — | Active |
| KX4AY | 9 | 61 | 2035-12-09 | — | Active |
| KX4AZ | 9 | 59 | 2027-02-17 | — | Active |
| KX4BA | 9 | 57 | 2031-05-13 | — | Active |
| KX4BB | 9 | 61 | 2035-05-03 | — | Active |
| KX4BC | 9 | 63 | 2026-12-14 | — | Active |
| KX4BD | 9 | 59 | 2027-02-21 | — | Active |
| KX4BE | 9 | 53 | 2027-02-22 | — | Active |
| KX4BF | 9 | 61 | 2027-02-22 | — | Active |
| KX4BG | 8 | 61 | 2027-02-24 | — | Active |
| KX4BH | 9 | 59 | 2025-08-18 | — | Active |
| KX4BI | 10 | 55 | 2036-12-19 | — | Active |
| KX4BJ | 10 | 65 | 2017-03-17 | 2019-03-18 | Available |
| KX4BK | 9 | 61 | 2018-08-11 | 2020-08-12 | Available |
| KX4BL | 9 | 61 | 2032-03-19 | — | Active |
| KX4BM | 8 | 59 | 2017-04-11 | 2019-04-12 | Available |
| KX4BN | 10 | 57 | 2017-05-26 | 2019-05-27 | Available |
| KX4BO | 9 | 63 | 2027-03-01 | — | Active |
| KX4BP | 9 | 63 | 2027-03-01 | — | Active |
| KX4BQ | 9 | 65 | 2025-04-15 | 2027-04-16 | Canceled (grace period) |
| KX4BR | 10 | 59 | 2027-03-08 | — | Active |
| KX4BS | 10 | 57 | 2027-03-08 | — | Active |
| KX4BT | 9 | 55 | 2026-12-30 | — | Active |
| KX4BU | 10 | 59 | 2017-04-18 | 2019-04-19 | Available |
| KX4BV | 9 | 61 | 2027-03-10 | — | Active |
| KX4BW | 9 | 61 | 2024-03-05 | 2026-03-06 | Available |
| KX4BX | 9 | 63 | 2017-04-04 | 2019-04-05 | Available |
| KX4BY | 9 | 65 | 2026-07-12 | 2028-07-13 | Canceled (grace period) |
| KX4BZ | 9 | 63 | 2033-01-18 | — | Active |
| KX4CA | 9 | 59 | 2030-07-04 | — | Active (Vanity) |
| KX4CB | 9 | 63 | 2027-03-16 | — | Active |
| KX4CC | 9 | 65 | 2036-07-29 | — | Active |
| KX4CD | 9 | 61 | 2035-06-02 | — | Active |
| KX4CE | 9 | 55 | 2027-02-24 | — | Active |
| KX4CF | 9 | 63 | 2027-03-29 | — | Active |
| KX4CG | 8 | 63 | 2027-03-10 | — | Active |
| KX4CH | 9 | 61 | 2025-09-16 | 2027-09-17 | Canceled (grace period) |
| KX4CI | 10 | 57 | 2027-04-10 | — | Active |
| KX4CJ | 10 | 67 | 2007-07-24 | 2009-07-25 | Available |
| KX4CK | 9 | 63 | 2027-04-10 | — | Active |
| KX4CL | 9 | 63 | 2017-04-21 | 2019-04-22 | Available |
| KX4CM | 8 | 61 | 2027-04-12 | — | Active |
| KX4CN | 10 | 59 | 2026-01-29 | — | Active |
| KX4CO | 9 | 65 | 2035-04-18 | — | Active |
| KX4CP | 9 | 65 | 2017-05-05 | 2019-05-06 | Available |
| KX4CQ | 9 | 67 | 2019-09-13 | 2021-09-14 | Available |
| KX4CR | 10 | 61 | 2027-03-16 | — | Active |
| KX4CS | 10 | 59 | 2017-06-17 | 2019-06-18 | Available |
| KX4CT | 9 | 57 | 2027-04-21 | — | Active |
| KX4CU | 10 | 61 | 2027-04-26 | — | Active |
| KX4CV | 9 | 63 | 2027-03-06 | — | Active |
| KX4CW | 9 | 63 | 2035-09-27 | — | Active (Vanity) |
| KX4CX | 9 | 65 | 2017-05-16 | 2019-05-17 | Available |
| KX4CY | 9 | 67 | 2027-01-23 | — | Active |
| KX4CZ | 9 | 65 | 2027-05-03 | — | Active |
| KX4DA | 9 | 55 | 2027-04-07 | — | Active |
| KX4DB | 9 | 59 | 2017-08-08 | 2019-08-09 | Available |
| KX4DC | 9 | 61 | 2035-05-15 | — | Active (Vanity) |
| KX4DD | 9 | 57 | 2017-07-25 | 2019-07-26 | Available |
| KX4DE | 9 | 51 | 2027-05-10 | — | Active |
| KX4DF | 9 | 59 | 2027-05-10 | — | Active |
| KX4DG | 8 | 59 | 2027-03-08 | — | Active |
| KX4DH | 9 | 57 | 2027-05-10 | — | Active |
| KX4DI | 10 | 53 | 2017-07-18 | 2019-07-19 | Available |
| KX4DJ | 10 | 63 | 2027-04-12 | — | Active |
| KX4DK | 9 | 59 | 2017-06-02 | 2019-06-03 | Available |
| KX4DL | 9 | 59 | 2027-05-16 | — | Active |
| KX4DM | 8 | 57 | 2027-05-16 | — | Active |
| KX4DN | 10 | 55 | 2027-04-21 | — | Active |
| KX4DO | 9 | 61 | 2027-05-19 | — | Active |
| KX4DP | 9 | 61 | 2017-06-23 | 2019-06-24 | Available |
| KX4DQ | 9 | 63 | 2027-03-15 | — | Active |
| KX4DR | 10 | 57 | 2017-06-20 | 2019-06-21 | Available |
| KX4DS | 10 | 55 | 2035-09-01 | — | Active |
| KX4DT | 9 | 53 | 2027-06-02 | — | Active |
| KX4DU | 10 | 57 | 2032-05-19 | — | Active |
| KX4DV | 9 | 59 | 2035-05-21 | — | Active |
| KX4DW | 9 | 59 | 2027-06-08 | — | Active |
| KX4DX | 9 | 61 | 2027-09-17 | — | Active (Vanity) |
| KX4DY | 9 | 63 | 2027-06-12 | — | Active |
| KX4DZ | 9 | 61 | 2028-03-24 | — | Active |
| KX4EA | 9 | 49 | 2027-05-10 | — | Active |
| KX4EB | 9 | 53 | 2017-07-14 | 2019-07-15 | Available |
| KX4EC | 9 | 55 | 2029-12-17 | — | Active |
| KX4ED | 9 | 51 | 2029-12-17 | — | Active |
| KX4EE | 9 | 45 | 2027-06-23 | — | Active |
| KX4EF | 9 | 53 | 2027-06-26 | — | Active |
| KX4EG | 8 | 53 | 2029-02-11 | — | Active |
| KX4EH | 9 | 51 | 2017-07-25 | 2019-07-26 | Available |
| KX4EI | 10 | 47 | 2027-03-29 | — | Active |
| KX4EJ | 10 | 57 | 2027-07-10 | — | Active |
| KX4EK | 9 | 53 | 2034-07-29 | — | Active |
| KX4EL | 9 | 53 | 2027-06-26 | — | Active |
| KX4EM | 8 | 51 | 2027-07-13 | — | Active |
| KX4EN | 10 | 49 | 2026-05-11 | — | Active |
| KX4EO | 9 | 55 | 2017-08-15 | 2019-08-16 | Available |
| KX4EP | 9 | 55 | 2017-08-22 | 2019-08-23 | Available |