District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| AG4YU | 9 | 57 | 2023-03-24 | 2025-03-25 | Available |
| AG4YV | 8 | 59 | 2033-03-25 | — | Active |
| AG4YW | 8 | 59 | 2023-03-28 | 2025-03-29 | Available |
| AG4YX | 8 | 61 | 2032-01-29 | — | Active |
| AG4YY | 8 | 63 | 2023-04-16 | 2025-04-17 | Available |
| AG4YZ | 8 | 61 | 2031-03-20 | — | Active |
| AG4ZA | 8 | 53 | 2024-12-10 | 2026-12-11 | Canceled (grace period) |
| AG4ZB | 8 | 57 | 2005-04-12 | 2007-04-13 | Available |
| AG4ZC | 8 | 59 | 2003-07-15 | 2005-07-16 | Available |
| AG4ZD | 8 | 55 | 2023-06-22 | 2025-06-23 | Available |
| AG4ZE | 8 | 49 | 2026-03-28 | — | Active |
| AG4ZF | 8 | 57 | 2030-06-16 | — | Active |
| AG4ZG | 7 | 57 | 2022-12-12 | 2024-12-13 | Available |
| AG4ZH | 8 | 55 | 2032-08-07 | — | Active |
| AG4ZI | 9 | 51 | 2032-05-05 | — | Active |
| AG4ZJ | 9 | 61 | 2013-08-24 | 2015-08-25 | Available |
| AG4ZK | 8 | 57 | 2035-05-03 | — | Active |
| AG4ZL | 8 | 57 | 2027-04-28 | — | Active (Vanity) |
| AG4ZM | 7 | 55 | 2031-03-28 | — | Active |
| AG4ZN | 9 | 53 | 2007-01-04 | 2009-01-05 | Available |
| AG4ZO | 8 | 59 | 2020-03-07 | 2022-03-08 | Available |
| AG4ZP | 8 | 59 | 2030-10-06 | — | Active |
| AG4ZQ | 8 | 61 | 2033-08-17 | — | Active |
| AG4ZR | 9 | 55 | 2033-02-11 | — | Active |
| AG4ZS | 9 | 53 | 2022-12-15 | 2024-12-16 | Available |
| AG4ZT | 8 | 51 | 2033-04-17 | — | Active |
| AG4ZU | 9 | 55 | 2033-11-10 | — | Active |
| AG4ZV | 8 | 57 | 2027-03-25 | — | Active |
| AG4ZW | 8 | 57 | 2023-06-18 | 2025-06-19 | Available |
| AG4ZX | 8 | 59 | 2036-04-23 | — | Active |
| AG4ZY | 8 | 61 | 2027-11-15 | — | Active |
| AG4ZZ | 8 | 59 | 2032-08-13 | — | Active |
| AI4AA | 10 | 41 | 2031-11-09 | — | Active (Vanity) |
| AI4AB | 10 | 45 | 2032-03-24 | — | Active (Vanity) |
| AI4AC | 10 | 47 | 2033-08-01 | — | Active |
| AI4AD | 10 | 43 | 2032-08-19 | — | Active |
| AI4AE | 10 | 37 | 2033-11-03 | — | Active (Vanity) |
| AI4AF | 10 | 45 | 2033-02-02 | — | Active |
| AI4AG | 9 | 45 | 2033-08-16 | — | Active |
| AI4AH | 10 | 43 | 2033-05-10 | — | Active |
| AI4AI | 11 | 39 | 2031-07-11 | — | Active |
| AI4AJ | 11 | 49 | 2023-09-28 | 2025-09-29 | Available |
| AI4AK | 10 | 45 | 2028-08-11 | — | Active |
| AI4AL | 10 | 45 | 2029-09-24 | — | Active (Vanity) |
| AI4AM | 9 | 43 | 2032-10-11 | — | Active |
| AI4AN | 11 | 41 | 2027-10-06 | — | Active |
| AI4AO | 10 | 47 | 2034-02-22 | — | Active |
| AI4AP | 10 | 47 | 2022-05-06 | 2024-05-07 | Available |
| AI4AQ | 10 | 49 | 2011-07-31 | 2013-08-01 | Available |
| AI4AR | 11 | 43 | 2028-12-22 | — | Active (Vanity) |
| AI4AS | 11 | 41 | 2003-10-15 | 2005-10-16 | Available |
| AI4AT | 10 | 39 | 2036-05-29 | — | Active (Vanity) |
| AI4AU | 11 | 43 | 2034-08-08 | — | Active |
| AI4AV | 10 | 45 | 2033-07-10 | — | Active |
| AI4AW | 10 | 45 | 2032-08-02 | — | Active |
| AI4AX | 10 | 47 | 2034-02-06 | — | Active |
| AI4AY | 10 | 49 | 2029-06-29 | — | Active |
| AI4AZ | 10 | 47 | 2004-05-14 | 2006-05-15 | Available |
| AI4BA | 10 | 45 | 2033-02-20 | — | Active |
| AI4BB | 10 | 49 | 2029-09-25 | — | Active |
| AI4BC | 10 | 51 | 2035-12-09 | — | Active (Vanity) |
| AI4BD | 10 | 47 | 2003-10-11 | 2005-10-12 | Available |
| AI4BE | 10 | 41 | 2035-02-11 | — | Active (Vanity) |
| AI4BF | 10 | 49 | 2012-08-23 | 2014-08-24 | Available |
| AI4BG | 9 | 49 | 2027-02-12 | — | Active |
| AI4BH | 10 | 47 | 2022-06-23 | 2024-06-24 | Available |
| AI4BI | 11 | 43 | 2033-04-12 | — | Active |
| AI4BJ | 11 | 53 | 2033-09-11 | — | Active |
| AI4BK | 10 | 49 | 2032-10-30 | — | Active |
| AI4BL | 10 | 49 | 2013-02-12 | 2015-02-13 | Available |
| AI4BM | 9 | 47 | 2003-09-17 | 2005-09-18 | Available |
| AI4BN | 11 | 45 | 2032-06-18 | — | Active |
| AI4BO | 10 | 51 | 2022-11-21 | 2024-11-22 | Available |
| AI4BP | 10 | 51 | 2028-05-28 | — | Active |
| AI4BQ | 10 | 53 | 2032-11-19 | — | Active |
| AI4BR | 11 | 47 | 2034-07-23 | — | Active |
| AI4BS | 11 | 45 | 2035-09-16 | — | Active (Vanity) |
| AI4BT | 10 | 43 | 2014-09-09 | 2016-09-10 | Available |
| AI4BU | 11 | 47 | 2004-03-31 | 2006-04-01 | Available |
| AI4BV | 10 | 49 | 2024-02-23 | 2026-02-24 | Available |
| AI4BW | 10 | 49 | 2033-12-20 | — | Active |
| AI4BX | 10 | 51 | 2007-11-17 | 2009-11-18 | Available |
| AI4BY | 10 | 53 | 2032-08-02 | — | Active |
| AI4BZ | 10 | 51 | 2032-10-22 | — | Active |
| AI4CA | 10 | 47 | 2033-10-18 | — | Active |
| AI4CB | 10 | 51 | 2006-04-28 | 2008-04-29 | Available |
| AI4CC | 10 | 53 | 2018-10-20 | 2020-10-21 | Available |
| AI4CD | 10 | 49 | 2026-08-15 | — | Active |
| AI4CE | 10 | 43 | 2023-05-02 | 2025-05-03 | Available |
| AI4CF | 10 | 51 | 2013-07-08 | 2015-07-09 | Available |
| AI4CG | 9 | 51 | 2003-11-11 | 2005-11-12 | Available |
| AI4CH | 10 | 49 | 2034-11-05 | — | Active (Vanity) |
| AI4CI | 11 | 45 | 2023-04-07 | 2025-04-08 | Available |
| AI4CJ | 11 | 55 | 2033-08-25 | — | Active |
| AI4CK | 10 | 51 | 2029-10-16 | — | Active (Vanity) |
| AI4CL | 10 | 51 | 2003-12-23 | 2005-12-24 | Available |
| AI4CM | 9 | 49 | 2032-05-24 | — | Active |
| AI4CN | 11 | 47 | 2028-02-09 | — | Active |
| AI4CO | 10 | 53 | 2033-06-17 | — | Active |
| AI4CP | 10 | 53 | 2028-04-17 | — | Active (Vanity) |