District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KZ4ZS | 10 | 59 | 2036-02-18 | — | Active |
| KZ4ZT | 9 | 57 | 2034-12-21 | — | Active |
| KZ4ZU | 10 | 61 | 2026-03-20 | 2028-03-21 | Canceled (grace period) |
| KZ4ZV | 9 | 63 | 2036-02-21 | — | Active |
| KZ4ZW | 9 | 63 | 2026-05-08 | 2028-05-09 | Canceled (grace period) |
| KZ4ZX | 9 | 65 | 2035-07-29 | — | Active |
| KZ4ZY | 9 | 67 | 2026-03-27 | 2028-03-28 | Canceled (grace period) |
| KZ4ZZ | 9 | 65 | 2032-10-01 | — | Active (Vanity) |
| NA4AA | 10 | 43 | 2034-01-22 | — | Active (Vanity) |
| NA4AB | 10 | 47 | 2028-03-06 | — | Active |
| NA4AC | 10 | 49 | 2035-01-14 | — | Active |
| NA4AD | 10 | 45 | 2035-03-15 | — | Active |
| NA4AE | 10 | 39 | 2036-07-29 | — | Active (Vanity) |
| NA4AF | 10 | 47 | 2035-11-25 | — | Active |
| NA4AG | 9 | 47 | 2036-01-21 | — | Active |
| NA4AH | 10 | 45 | 2035-03-25 | — | Active |
| NA4AI | 11 | 41 | 2033-07-14 | — | Active (Vanity) |
| NA4AJ | 11 | 51 | 2026-03-17 | 2028-03-18 | Canceled (grace period) |
| NA4AK | 10 | 47 | 2026-03-11 | 2028-03-12 | Canceled (grace period) |
| NA4AL | 10 | 47 | 2031-07-14 | — | Active (Vanity) |
| NA4AM | 9 | 45 | 2036-01-23 | — | Active |
| NA4AN | 11 | 43 | 2035-01-16 | — | Active |
| NA4AO | 10 | 49 | 2036-02-11 | — | Active |
| NA4AP | 10 | 49 | 2036-02-11 | — | Active |
| NA4AQ | 10 | 51 | 2026-03-28 | 2028-03-29 | Canceled (grace period) |
| NA4AR | 11 | 45 | 2024-07-23 | 2026-07-24 | Available |
| NA4AS | 11 | 43 | 2026-04-14 | 2028-04-15 | Canceled (grace period) |
| NA4AT | 10 | 41 | 2026-03-27 | 2028-03-28 | Canceled (grace period) |
| NA4AU | 11 | 45 | 2036-02-13 | — | Active |
| NA4AV | 10 | 47 | 2031-01-11 | — | Active |
| NA4AW | 10 | 47 | 2034-10-04 | — | Active |
| NA4AX | 10 | 49 | 2036-03-17 | — | Active |
| NA4AY | 10 | 51 | 2036-03-17 | — | Active |
| NA4AZ | 10 | 49 | 2035-08-23 | — | Active |
| NA4BA | 10 | 47 | 2026-07-28 | 2028-07-29 | Canceled (grace period) |
| NA4BB | 10 | 51 | 2036-02-26 | — | Active |
| NA4BC | 10 | 53 | 2036-03-17 | — | Active |
| NA4BD | 10 | 49 | 2026-06-26 | 2028-06-27 | Canceled (grace period) |
| NA4BE | 10 | 43 | 2035-11-27 | — | Active |
| NA4BF | 10 | 51 | 2026-05-01 | 2028-05-02 | Canceled (grace period) |
| NA4BG | 9 | 51 | 2036-03-31 | — | Active |
| NA4BH | 10 | 49 | 2036-10-07 | — | Active (Vanity) |
| NA4BI | 11 | 45 | 2026-08-28 | 2028-08-29 | Canceled (grace period) |
| NA4BJ | 11 | 55 | 2036-02-19 | — | Active |
| NA4BK | 10 | 51 | 2036-04-10 | — | Active |
| NA4BL | 10 | 51 | 2036-03-10 | — | Active |
| NA4BM | 9 | 49 | 2036-04-14 | — | Active |
| NA4BN | 11 | 47 | 2032-04-26 | — | Active (Vanity) |
| NA4BO | 10 | 53 | 2036-04-14 | — | Active |
| NA4BP | 10 | 53 | 2035-07-15 | — | Active |
| NA4BQ | 10 | 55 | 2035-11-22 | — | Active |
| NA4BR | 11 | 49 | 2036-04-21 | — | Active |
| NA4BS | 11 | 47 | — | — | Available |
| NA4BT | 10 | 45 | 2036-04-10 | — | Active |
| NA4BU | 11 | 49 | 2036-02-18 | — | Active |
| NA4BV | 10 | 51 | 2035-11-26 | — | Active |
| NA4BW | 10 | 51 | 2012-02-11 | 2014-02-12 | Available |
| NA4BX | 10 | 53 | 2036-05-07 | — | Active |
| NA4BY | 10 | 55 | 2036-04-14 | — | Active |
| NA4BZ | 10 | 53 | 2036-03-24 | — | Active |
| NA4CA | 10 | 49 | 2036-02-28 | — | Active |
| NA4CB | 10 | 53 | 2036-05-20 | — | Active |
| NA4CC | 10 | 55 | 2028-03-28 | — | Active (Vanity) |
| NA4CD | 10 | 51 | 2026-06-09 | 2028-06-10 | Canceled (grace period) |
| NA4CE | 10 | 45 | 2036-05-15 | — | Active |
| NA4CF | 10 | 53 | 2023-03-05 | 2025-03-06 | Available |
| NA4CG | 9 | 53 | 2034-01-23 | — | Active |
| NA4CH | 10 | 51 | 2026-06-23 | 2028-06-24 | Canceled (grace period) |
| NA4CI | 11 | 47 | 2034-05-24 | — | Active |
| NA4CJ | 11 | 57 | 2026-06-26 | 2028-06-27 | Canceled (grace period) |
| NA4CK | 10 | 53 | 2029-01-30 | — | Active |
| NA4CL | 10 | 53 | 2033-10-17 | — | Active (Vanity) |
| NA4CM | 9 | 51 | 2036-06-02 | — | Active |
| NA4CN | 11 | 49 | 2036-06-06 | — | Active |
| NA4CO | 10 | 55 | 2036-06-06 | — | Active |
| NA4CP | 10 | 55 | 2026-07-07 | 2028-07-08 | Canceled (grace period) |
| NA4CQ | 10 | 57 | 2025-12-15 | 2027-12-16 | Canceled (grace period) |
| NA4CR | 11 | 51 | 2036-06-09 | — | Active |
| NA4CS | 11 | 49 | 2036-04-14 | — | Active |
| NA4CT | 10 | 47 | 2036-03-19 | — | Active |
| NA4CU | 11 | 51 | 2026-07-10 | 2028-07-11 | Canceled (grace period) |
| NA4CV | 10 | 53 | 2036-06-17 | — | Active |
| NA4CW | 10 | 53 | 2036-11-26 | — | Active (Vanity) |
| NA4CX | 10 | 55 | 2034-07-26 | — | Active |
| NA4CY | 10 | 57 | 2026-07-14 | 2028-07-15 | Canceled (grace period) |
| NA4CZ | 10 | 55 | 2036-06-23 | — | Active |
| NA4DA | 10 | 45 | 2030-05-19 | — | Active (Vanity) |
| NA4DB | 10 | 49 | 2036-06-24 | — | Active |
| NA4DC | 10 | 51 | 2036-01-23 | — | Active (Vanity) |
| NA4DD | 10 | 47 | 2033-10-11 | — | Active (Vanity) |
| NA4DE | 10 | 41 | 2036-06-25 | — | Active |
| NA4DF | 10 | 49 | 2036-06-26 | — | Active |
| NA4DG | 9 | 49 | 2033-02-02 | — | Active |
| NA4DH | 10 | 47 | 2036-04-29 | — | Active |
| NA4DI | 11 | 43 | 2036-05-12 | — | Active |
| NA4DJ | 11 | 53 | 2030-03-17 | — | Active |
| NA4DK | 10 | 49 | 2026-07-21 | 2028-07-22 | Canceled (grace period) |
| NA4DL | 10 | 49 | 2030-07-14 | — | Active (Vanity) |
| NA4DM | 9 | 47 | 2036-06-30 | — | Active |
| NA4DN | 11 | 45 | 2036-03-17 | — | Active |