District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KZ4SA | 10 | 53 | 2035-04-08 | — | Active |
| KZ4SB | 10 | 57 | 2035-04-08 | — | Active |
| KZ4SC | 10 | 59 | 2035-02-12 | — | Active |
| KZ4SD | 10 | 55 | 2025-05-02 | 2027-05-03 | Canceled (grace period) |
| KZ4SE | 10 | 49 | 2025-05-06 | 2027-05-07 | Canceled (grace period) |
| KZ4SF | 10 | 57 | 2035-04-15 | — | Active |
| KZ4SG | 9 | 57 | 2035-04-15 | — | Active |
| KZ4SH | 10 | 55 | 2035-04-15 | — | Active |
| KZ4SI | 11 | 51 | 2035-04-16 | — | Active |
| KZ4SJ | 11 | 61 | 2035-04-17 | — | Active |
| KZ4SK | 10 | 57 | 2035-04-08 | — | Active |
| KZ4SL | 10 | 57 | 2035-04-22 | — | Active |
| KZ4SM | 9 | 55 | 2034-08-24 | — | Active |
| KZ4SN | 11 | 53 | 2034-08-20 | — | Active |
| KZ4SO | 10 | 59 | 2033-06-01 | — | Active |
| KZ4SP | 10 | 59 | 2035-03-18 | — | Active |
| KZ4SQ | 10 | 61 | 2035-04-29 | — | Active |
| KZ4SR | 11 | 55 | 2035-04-30 | — | Active |
| KZ4SS | 11 | 53 | 2025-05-20 | 2027-05-21 | Canceled (grace period) |
| KZ4ST | 10 | 51 | 2035-04-22 | — | Active |
| KZ4SU | 11 | 55 | 2034-09-11 | — | Active |
| KZ4SV | 10 | 57 | 2035-02-15 | — | Active |
| KZ4SW | 10 | 57 | 2035-04-23 | — | Active |
| KZ4SX | 10 | 59 | 2025-05-30 | 2027-05-31 | Canceled (grace period) |
| KZ4SY | 10 | 61 | 2035-03-28 | — | Active |
| KZ4SZ | 10 | 59 | 2026-07-21 | 2028-07-22 | Canceled (grace period) |
| KZ4TA | 9 | 51 | 2035-05-14 | — | Active |
| KZ4TB | 9 | 55 | 2019-12-29 | 2021-12-30 | Available |
| KZ4TC | 9 | 57 | 2025-06-03 | 2027-06-04 | Canceled (grace period) |
| KZ4TD | 9 | 53 | 2035-04-23 | — | Active |
| KZ4TE | 9 | 47 | 2031-06-01 | — | Active |
| KZ4TF | 9 | 55 | 2025-06-07 | 2027-06-08 | Canceled (grace period) |
| KZ4TG | 8 | 55 | 2035-05-20 | — | Active |
| KZ4TH | 9 | 53 | 2035-05-20 | — | Active |
| KZ4TI | 10 | 49 | 2031-08-14 | — | Active (Vanity) |
| KZ4TJ | 10 | 59 | 2035-05-21 | — | Active |
| KZ4TK | 9 | 55 | 2035-05-01 | — | Active |
| KZ4TL | 9 | 55 | 2025-07-25 | 2027-07-26 | Canceled (grace period) |
| KZ4TM | 8 | 53 | 2035-04-09 | — | Active |
| KZ4TN | 10 | 51 | 2028-12-27 | — | Active (Vanity) |
| KZ4TO | 9 | 57 | 2035-05-06 | — | Active |
| KZ4TP | 9 | 57 | 2030-12-15 | — | Active |
| KZ4TQ | 9 | 59 | 2025-07-01 | 2027-07-02 | Canceled (grace period) |
| KZ4TR | 10 | 53 | 2034-01-10 | — | Active |
| KZ4TS | 10 | 51 | 2035-06-07 | — | Active |
| KZ4TT | 9 | 49 | 2031-07-29 | — | Active (Vanity) |
| KZ4TU | 10 | 53 | 2025-08-01 | 2027-08-02 | Canceled (grace period) |
| KZ4TV | 9 | 55 | 2035-02-28 | — | Active (Vanity) |
| KZ4TW | 9 | 55 | 2035-06-12 | — | Active |
| KZ4TX | 9 | 57 | 2035-03-07 | — | Active |
| KZ4TY | 9 | 59 | 2026-01-17 | 2028-01-18 | Canceled (grace period) |
| KZ4TZ | 9 | 57 | 2025-08-08 | 2027-08-09 | Canceled (grace period) |
| KZ4UA | 10 | 55 | 2025-07-05 | 2027-07-06 | Canceled (grace period) |
| KZ4UB | 10 | 59 | 2033-10-18 | — | Active |
| KZ4UC | 10 | 61 | 2025-07-25 | 2027-07-26 | Canceled (grace period) |
| KZ4UD | 10 | 57 | 2035-06-17 | — | Active |
| KZ4UE | 10 | 51 | 2035-06-10 | — | Active |
| KZ4UF | 10 | 59 | 2034-04-16 | — | Active |
| KZ4UG | 9 | 59 | 2025-07-18 | 2027-07-19 | Canceled (grace period) |
| KZ4UH | 10 | 57 | 2030-07-31 | — | Active |
| KZ4UI | 11 | 53 | 2034-08-08 | — | Active |
| KZ4UJ | 11 | 63 | 2035-06-21 | — | Active |
| KZ4UK | 10 | 59 | 2025-07-19 | 2027-07-20 | Canceled (grace period) |
| KZ4UL | 10 | 59 | 2032-06-29 | — | Active |
| KZ4UM | 9 | 57 | 2034-11-22 | — | Active |
| KZ4UN | 11 | 55 | 2025-12-09 | 2027-12-10 | Canceled (grace period) |
| KZ4UO | 10 | 61 | 2031-08-16 | — | Active |
| KZ4UP | 10 | 61 | 2035-07-01 | — | Active |
| KZ4UQ | 10 | 63 | 2025-07-26 | 2027-07-27 | Canceled (grace period) |
| KZ4UR | 11 | 57 | 2026-06-19 | 2028-06-20 | Canceled (grace period) |
| KZ4US | 11 | 55 | 2036-11-21 | — | Active |
| KZ4UT | 10 | 53 | 2025-08-01 | 2027-08-02 | Canceled (grace period) |
| KZ4UU | 11 | 57 | 2035-02-05 | — | Active |
| KZ4UV | 10 | 59 | 2035-07-16 | — | Active |
| KZ4UW | 10 | 59 | 2032-06-09 | — | Active |
| KZ4UX | 10 | 61 | 2035-06-05 | — | Active |
| KZ4UY | 10 | 63 | 2025-08-08 | 2027-08-09 | Canceled (grace period) |
| KZ4UZ | 10 | 61 | 2025-09-06 | 2027-09-07 | Canceled (grace period) |
| KZ4VA | 9 | 57 | 2035-06-11 | — | Active |
| KZ4VB | 9 | 61 | 2035-02-01 | — | Active |
| KZ4VC | 9 | 63 | 2025-08-08 | 2027-08-09 | Canceled (grace period) |
| KZ4VD | 9 | 59 | 2035-06-19 | — | Active |
| KZ4VE | 9 | 53 | 2032-10-19 | — | Active |
| KZ4VF | 9 | 61 | 2025-08-12 | 2027-08-13 | Canceled (grace period) |
| KZ4VG | 8 | 61 | 2035-07-24 | — | Active |
| KZ4VH | 9 | 59 | 2035-07-01 | — | Active |
| KZ4VI | 10 | 55 | 2026-07-28 | 2028-07-29 | Canceled (grace period) |
| KZ4VJ | 10 | 65 | 2025-09-05 | 2027-09-06 | Canceled (grace period) |
| KZ4VK | 9 | 61 | 2025-08-16 | 2027-08-17 | Canceled (grace period) |
| KZ4VL | 9 | 61 | 2035-07-10 | — | Active |
| KZ4VM | 8 | 59 | 2035-07-29 | — | Active |
| KZ4VN | 10 | 57 | 2026-05-12 | 2028-05-13 | Canceled (grace period) |
| KZ4VO | 9 | 63 | 2032-06-15 | — | Active |
| KZ4VP | 9 | 63 | 2035-08-05 | — | Active |
| KZ4VQ | 9 | 65 | 2025-08-23 | 2027-08-24 | Canceled (grace period) |
| KZ4VR | 10 | 59 | 2025-08-29 | 2027-08-30 | Canceled (grace period) |
| KZ4VS | 10 | 57 | 2026-07-21 | 2028-07-22 | Canceled (grace period) |
| KZ4VT | 9 | 55 | 2028-12-09 | — | Active (Vanity) |
| KZ4VU | 10 | 59 | 2033-12-29 | — | Active |
| KZ4VV | 9 | 61 | 2035-08-12 | — | Active |