District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| AA4LO | 9 | 53 | 2004-12-22 | 2006-12-23 | Available |
| AA4LP | 9 | 53 | 2005-07-12 | 2007-07-13 | Available |
| AA4LQ | 9 | 55 | 2035-11-05 | — | Active |
| AA4LR | 10 | 49 | 2036-08-28 | — | Active |
| AA4LS | 10 | 47 | 2028-05-22 | — | Active (Vanity) |
| AA4LT | 9 | 45 | 2025-06-22 | — | Active |
| AA4LU | 10 | 49 | 2035-05-26 | — | Active |
| AA4LV | 9 | 51 | — | — | Available |
| AA4LW | 9 | 51 | — | — | Available |
| AA4LX | 9 | 53 | 2035-05-23 | — | Active |
| AA4LY | 9 | 55 | — | — | Available |
| AA4LZ | 9 | 53 | 2026-01-21 | — | Active |
| AA4MA | 8 | 45 | 2031-11-16 | — | Active (Vanity) |
| AA4MB | 8 | 49 | 2031-12-09 | — | Active (Vanity) |
| AA4MC | 8 | 51 | 2030-01-19 | — | Active (Vanity) |
| AA4MD | 8 | 47 | 2029-04-06 | — | Active |
| AA4ME | 8 | 41 | 2028-04-03 | — | Active |
| AA4MF | 8 | 49 | 2031-10-02 | — | Active (Vanity) |
| AA4MG | 7 | 49 | 2036-04-28 | — | Active (Vanity) |
| AA4MH | 8 | 47 | 2030-04-24 | — | Active |
| AA4MI | 9 | 43 | 2024-04-05 | 2026-04-06 | Available |
| AA4MJ | 9 | 53 | 2035-06-20 | — | Active |
| AA4MK | 8 | 49 | — | — | Available |
| AA4ML | 8 | 49 | — | — | Available |
| AA4MM | 7 | 47 | 2030-01-16 | — | Active |
| AA4MN | 9 | 45 | 2036-09-17 | — | Active |
| AA4MO | 8 | 51 | 2036-03-27 | — | Active (Vanity) |
| AA4MP | 8 | 51 | 2035-10-16 | — | Active |
| AA4MQ | 8 | 53 | 2035-05-10 | — | Active |
| AA4MR | 9 | 47 | 2036-02-06 | — | Active (Vanity) |
| AA4MS | 9 | 45 | 2004-02-22 | 2006-02-23 | Available |
| AA4MT | 8 | 43 | 2033-08-20 | — | Active (Vanity) |
| AA4MU | 9 | 47 | 2011-06-21 | 2013-06-22 | Available |
| AA4MV | 8 | 49 | — | — | Available |
| AA4MW | 8 | 49 | 2027-10-24 | — | Active |
| AA4MX | 8 | 51 | 2035-03-21 | — | Active (Vanity) |
| AA4MY | 8 | 53 | 2035-08-22 | — | Active (Vanity) |
| AA4MZ | 8 | 51 | 2035-10-31 | — | Active (Vanity) |
| AA4NA | 10 | 43 | — | — | Available |
| AA4NB | 10 | 47 | 2015-06-29 | 2017-06-30 | Available |
| AA4NC | 10 | 49 | 2034-03-15 | — | Active (Vanity) |
| AA4ND | 10 | 45 | — | — | Available |
| AA4NE | 10 | 39 | 2033-01-27 | — | Active (Vanity) |
| AA4NF | 10 | 47 | — | — | Available |
| AA4NG | 9 | 47 | 2027-11-07 | — | Active (Vanity) |
| AA4NH | 10 | 45 | — | — | Available |
| AA4NI | 11 | 41 | 2033-09-14 | — | Active |
| AA4NJ | 11 | 51 | 2022-09-29 | 2024-09-30 | Available |
| AA4NK | 10 | 47 | 2001-07-30 | 2003-07-31 | Available |
| AA4NL | 10 | 47 | — | — | Available |
| AA4NM | 9 | 45 | — | — | Available |
| AA4NN | 11 | 43 | 2031-03-05 | — | Active |
| AA4NO | 10 | 49 | 2033-07-18 | — | Active (Vanity) |
| AA4NP | 10 | 49 | 2035-08-31 | — | Active |
| AA4NQ | 10 | 51 | — | — | Available |
| AA4NR | 11 | 45 | 2016-07-29 | 2018-07-30 | Available |
| AA4NS | 11 | 43 | 2014-02-05 | 2016-02-06 | Available |
| AA4NT | 10 | 41 | — | — | Available |
| AA4NU | 11 | 45 | 2028-05-12 | — | Active |
| AA4NV | 10 | 47 | 2033-01-12 | — | Active |
| AA4NW | 10 | 47 | — | — | Available |
| AA4NX | 10 | 49 | 2026-10-18 | — | Active (Vanity) |
| AA4NY | 10 | 51 | 2016-06-18 | 2018-06-19 | Available |
| AA4NZ | 10 | 49 | 2032-09-01 | — | Active |
| AA4OA | 9 | 49 | 2026-09-14 | — | Active |
| AA4OB | 9 | 53 | 2031-08-17 | — | Active (Vanity) |
| AA4OC | 9 | 55 | 2020-04-27 | 2022-04-28 | Available |
| AA4OD | 9 | 51 | 2036-06-20 | — | Active |
| AA4OE | 9 | 45 | 2007-08-22 | 2009-08-23 | Available |
| AA4OF | 9 | 53 | 2015-06-17 | 2017-06-18 | Available |
| AA4OG | 8 | 53 | 2036-06-18 | — | Active (Vanity) |
| AA4OH | 9 | 51 | 2032-09-18 | — | Active (Vanity) |
| AA4OI | 10 | 47 | 2025-01-10 | — | Active |
| AA4OJ | 10 | 57 | — | — | Available |
| AA4OK | 9 | 53 | 2018-11-01 | 2020-11-02 | Available |
| AA4OL | 9 | 53 | 2035-08-08 | — | Active (Vanity) |
| AA4OM | 8 | 51 | 2026-08-04 | 2028-08-05 | Canceled (grace period) |
| AA4ON | 10 | 49 | 2025-06-13 | — | Active |
| AA4OO | 9 | 55 | 2036-03-05 | — | Active (Vanity) |
| AA4OP | 9 | 55 | — | — | Available |
| AA4OQ | 9 | 57 | 2008-12-23 | 2010-12-24 | Available |
| AA4OR | 10 | 51 | 2017-04-07 | 2019-04-08 | Available |
| AA4OS | 10 | 49 | 2035-10-16 | — | Active |
| AA4OT | 9 | 47 | 2033-12-05 | — | Active (Vanity) |
| AA4OU | 10 | 51 | 2015-06-30 | 2017-07-01 | Available |
| AA4OV | 9 | 53 | 2029-06-25 | — | Active |
| AA4OW | 9 | 53 | 2016-02-08 | 2018-02-09 | Available |
| AA4OX | 9 | 55 | 2019-02-25 | 2021-02-26 | Available |
| AA4OY | 9 | 57 | — | — | Available |
| AA4OZ | 9 | 55 | 2025-06-15 | — | Active |
| AA4PA | 9 | 49 | 2035-08-15 | — | Active (Vanity) |
| AA4PB | 9 | 53 | 2035-09-07 | — | Active |
| AA4PC | 9 | 55 | 2027-03-02 | — | Active (Vanity) |
| AA4PD | 9 | 51 | 2026-09-30 | — | Active (Vanity) |
| AA4PE | 9 | 45 | 2029-10-18 | — | Active (Vanity) |
| AA4PF | 9 | 53 | 2033-04-19 | — | Active (Vanity) |
| AA4PG | 8 | 53 | 2035-11-28 | — | Active |
| AA4PH | 9 | 51 | 2006-01-24 | 2008-01-25 | Available |
| AA4PI | 10 | 47 | 2025-11-13 | — | Active |
| AA4PJ | 10 | 57 | 2025-11-20 | — | Active |