District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| AD4KM | 8 | 51 | 2033-09-30 | — | Active |
| AD4KN | 10 | 49 | 2003-09-21 | 2005-09-22 | Available |
| AD4KO | 9 | 55 | 2013-09-21 | 2015-09-22 | Available |
| AD4KP | 9 | 55 | 2033-09-21 | — | Active |
| AD4KQ | 9 | 57 | 2033-11-26 | — | Active |
| AD4KR | 10 | 51 | 2033-09-21 | — | Active |
| AD4KS | 10 | 49 | — | — | Available |
| AD4KT | 9 | 47 | 2023-09-21 | 2025-09-22 | Available |
| AD4KU | 10 | 51 | — | — | Available |
| AD4KV | 9 | 53 | 2004-02-18 | 2006-02-19 | Available |
| AD4KW | 9 | 53 | — | — | Available |
| AD4KX | 9 | 55 | — | — | Available |
| AD4KY | 9 | 57 | 2032-02-23 | — | Active (Vanity) |
| AD4KZ | 9 | 55 | 2023-09-28 | 2025-09-29 | Available |
| AD4LA | 9 | 49 | 2030-09-28 | — | Active (Vanity) |
| AD4LB | 9 | 53 | 2007-10-22 | 2009-10-23 | Available |
| AD4LC | 9 | 55 | 2032-10-27 | — | Active (Vanity) |
| AD4LD | 9 | 51 | 2024-03-05 | 2026-03-06 | Available |
| AD4LE | 9 | 45 | 2033-10-05 | — | Active |
| AD4LF | 9 | 53 | 2013-10-05 | 2015-10-06 | Available |
| AD4LG | 8 | 53 | — | — | Available |
| AD4LH | 9 | 51 | 2003-10-05 | 2005-10-06 | Available |
| AD4LI | 10 | 47 | 1999-04-21 | 2001-04-22 | Available |
| AD4LJ | 10 | 57 | — | — | Available |
| AD4LK | 9 | 53 | 2000-07-07 | 2002-07-08 | Available |
| AD4LL | 9 | 53 | 2003-10-05 | 2005-10-06 | Available |
| AD4LM | 8 | 51 | 1999-01-28 | 2001-01-29 | Available |
| AD4LN | 10 | 49 | 2033-10-05 | — | Active |
| AD4LO | 9 | 55 | 2024-03-05 | 2026-03-06 | Available |
| AD4LP | 9 | 55 | 2024-03-05 | 2026-03-06 | Available |
| AD4LQ | 9 | 57 | 2013-10-05 | 2015-10-06 | Available |
| AD4LR | 10 | 51 | 2013-10-05 | 2015-10-06 | Available |
| AD4LS | 10 | 49 | 2034-01-23 | — | Active |
| AD4LT | 9 | 47 | 2015-04-12 | 2017-04-13 | Available |
| AD4LU | 10 | 51 | 2033-10-23 | — | Active |
| AD4LV | 9 | 53 | 2034-03-15 | — | Active |
| AD4LW | 9 | 53 | 2033-12-19 | — | Active |
| AD4LX | 9 | 55 | 2033-11-05 | — | Active |
| AD4LY | 9 | 57 | 2033-10-12 | — | Active |
| AD4LZ | 9 | 55 | 2033-10-12 | — | Active |
| AD4MA | 8 | 47 | 2033-10-12 | — | Active |
| AD4MB | 8 | 51 | — | — | Available |
| AD4MC | 8 | 53 | 2029-03-17 | — | Active (Vanity) |
| AD4MD | 8 | 49 | 2034-03-20 | — | Active |
| AD4ME | 8 | 43 | 2033-10-19 | — | Active |
| AD4MF | 8 | 51 | 2033-10-19 | — | Active |
| AD4MG | 7 | 51 | 2033-11-15 | — | Active |
| AD4MH | 8 | 49 | 2033-10-19 | — | Active |
| AD4MI | 9 | 45 | 2013-10-19 | 2015-10-20 | Available |
| AD4MJ | 9 | 55 | 2013-10-19 | 2015-10-20 | Available |
| AD4MK | 8 | 51 | 2024-03-05 | 2026-03-06 | Available |
| AD4ML | 8 | 51 | — | — | Available |
| AD4MM | 7 | 49 | 2033-10-26 | — | Active |
| AD4MN | 9 | 47 | 2013-10-26 | 2015-10-27 | Available |
| AD4MO | 8 | 53 | 2031-05-11 | — | Active (Vanity) |
| AD4MP | 8 | 53 | 2021-05-18 | 2023-05-19 | Available |
| AD4MQ | 8 | 55 | — | — | Available |
| AD4MR | 9 | 49 | 2028-07-03 | — | Active (Vanity) |
| AD4MS | 9 | 47 | 2028-03-06 | — | Active (Vanity) |
| AD4MT | 8 | 45 | 2036-01-31 | — | Active (Vanity) |
| AD4MU | 9 | 49 | 2013-11-02 | 2015-11-03 | Available |
| AD4MV | 8 | 51 | 2033-11-14 | — | Active |
| AD4MW | 8 | 51 | 2024-03-05 | 2026-03-06 | Available |
| AD4MX | 8 | 53 | 2013-11-09 | 2015-11-10 | Available |
| AD4MY | 8 | 55 | — | — | Available |
| AD4MZ | 8 | 53 | 2004-10-26 | 2006-10-27 | Available |
| AD4NA | 10 | 45 | 2035-07-31 | — | Active |
| AD4NB | 10 | 49 | 2033-11-16 | — | Active |
| AD4NC | 10 | 51 | 2036-03-24 | — | Active (Vanity) |
| AD4ND | 10 | 47 | 2002-04-02 | 2004-04-03 | Available |
| AD4NE | 10 | 41 | 2033-11-16 | — | Active |
| AD4NF | 10 | 49 | 2003-11-16 | 2005-11-17 | Available |
| AD4NG | 9 | 49 | 2031-07-27 | — | Active (Vanity) |
| AD4NH | 10 | 47 | 2024-03-05 | 2026-03-06 | Available |
| AD4NI | 11 | 43 | — | — | Available |
| AD4NJ | 11 | 53 | 2024-03-05 | 2026-03-06 | Available |
| AD4NK | 10 | 49 | 2033-11-23 | — | Active |
| AD4NL | 10 | 49 | — | — | Available |
| AD4NM | 9 | 47 | — | — | Available |
| AD4NN | 11 | 45 | 2013-11-23 | 2015-11-24 | Available |
| AD4NO | 10 | 51 | 2024-03-05 | 2026-03-06 | Available |
| AD4NP | 10 | 51 | — | — | Available |
| AD4NQ | 10 | 53 | 2003-11-30 | 2005-12-01 | Available |
| AD4NR | 11 | 47 | 2034-07-22 | — | Active |
| AD4NS | 11 | 45 | 2013-11-30 | 2015-12-01 | Available |
| AD4NT | 10 | 43 | 2034-09-17 | — | Active |
| AD4NU | 11 | 47 | 2003-12-14 | 2005-12-15 | Available |
| AD4NV | 10 | 49 | — | — | Available |
| AD4NW | 10 | 49 | 2034-01-20 | — | Active |
| AD4NX | 10 | 51 | 2015-11-09 | 2017-11-10 | Available |
| AD4NY | 10 | 53 | 2033-12-14 | — | Active |
| AD4NZ | 10 | 51 | 2024-03-05 | 2026-03-06 | Available |
| AD4OA | 9 | 51 | 2024-03-05 | 2026-03-06 | Available |
| AD4OB | 9 | 55 | 2013-12-21 | 2015-12-22 | Available |
| AD4OC | 9 | 57 | 2013-12-21 | 2015-12-22 | Available |
| AD4OD | 9 | 53 | 2003-12-21 | 2005-12-22 | Available |
| AD4OE | 9 | 47 | 2013-12-21 | 2015-12-22 | Available |
| AD4OF | 9 | 55 | — | — | Available |
| AD4OG | 8 | 55 | — | — | Available |
| AD4OH | 9 | 53 | 2013-12-21 | 2015-12-22 | Available |