District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| AC4BW | 9 | 57 | 2034-03-02 | — | Active (Vanity) |
| AC4BX | 9 | 59 | 2001-01-08 | 2003-01-09 | Available |
| AC4BY | 9 | 61 | 2031-01-15 | — | Active |
| AC4BZ | 9 | 59 | 2032-10-15 | — | Active (Vanity) |
| AC4CA | 9 | 55 | 2031-01-22 | — | Active |
| AC4CB | 9 | 59 | 2031-01-22 | — | Active |
| AC4CC | 9 | 61 | 2036-07-24 | — | Active |
| AC4CD | 9 | 57 | 2032-12-22 | — | Active |
| AC4CE | 9 | 51 | 2029-03-09 | — | Active (Vanity) |
| AC4CF | 9 | 59 | 2012-07-06 | 2014-07-07 | Available |
| AC4CG | 8 | 59 | — | — | Available |
| AC4CH | 9 | 57 | 2031-09-18 | — | Active (Vanity) |
| AC4CI | 10 | 53 | 2033-02-09 | — | Active |
| AC4CJ | 10 | 63 | 2031-01-29 | — | Active |
| AC4CK | 9 | 59 | 2021-04-13 | 2023-04-14 | Available |
| AC4CL | 9 | 59 | 2031-01-29 | — | Active |
| AC4CM | 8 | 57 | 2030-04-29 | — | Active |
| AC4CN | 10 | 55 | 2011-02-05 | 2013-02-06 | Available |
| AC4CO | 9 | 61 | 2021-02-05 | 2023-02-06 | Available |
| AC4CP | 9 | 61 | 2028-04-10 | — | Active (Vanity) |
| AC4CQ | 9 | 63 | 2033-04-20 | — | Active |
| AC4CR | 10 | 57 | 2030-05-12 | — | Active (Vanity) |
| AC4CS | 10 | 55 | 2027-08-26 | — | Active (Vanity) |
| AC4CT | 9 | 53 | 2027-10-07 | — | Active (Vanity) |
| AC4CU | 10 | 57 | 2003-09-07 | 2005-09-08 | Available |
| AC4CV | 9 | 59 | 2023-07-12 | 2025-07-13 | Available |
| AC4CW | 9 | 59 | 2032-05-05 | — | Active |
| AC4CX | 9 | 61 | 2031-02-12 | — | Active |
| AC4CY | 9 | 63 | 2031-07-08 | — | Active |
| AC4CZ | 9 | 61 | 2011-02-12 | 2013-02-13 | Available |
| AC4DA | 9 | 51 | 2030-02-20 | — | Active |
| AC4DB | 9 | 55 | 2034-04-23 | — | Active (Vanity) |
| AC4DC | 9 | 57 | 2033-03-16 | — | Active (Vanity) |
| AC4DD | 9 | 53 | 2021-02-19 | 2023-02-20 | Available |
| AC4DE | 9 | 47 | 2032-01-08 | — | Active (Vanity) |
| AC4DF | 9 | 55 | 2003-12-16 | 2005-12-17 | Available |
| AC4DG | 8 | 55 | 2031-05-03 | — | Active (Vanity) |
| AC4DH | 9 | 53 | 2029-08-30 | — | Active (Vanity) |
| AC4DI | 10 | 49 | 1998-11-02 | 2000-11-03 | Available |
| AC4DJ | 10 | 59 | 2019-11-24 | 2021-11-25 | Available |
| AC4DK | 9 | 55 | 2031-03-07 | — | Active |
| AC4DL | 9 | 55 | 2032-07-21 | — | Active |
| AC4DM | 8 | 53 | 2027-04-21 | — | Active (Vanity) |
| AC4DN | 10 | 51 | — | — | Available |
| AC4DO | 9 | 57 | — | — | Available |
| AC4DP | 9 | 57 | 2028-07-24 | — | Active (Vanity) |
| AC4DQ | 9 | 59 | 2021-03-05 | 2023-03-06 | Available |
| AC4DR | 10 | 53 | 2032-01-31 | — | Active (Vanity) |
| AC4DS | 10 | 51 | 2021-03-12 | 2023-03-13 | Available |
| AC4DT | 9 | 49 | 2001-03-12 | 2003-03-13 | Available |
| AC4DU | 10 | 53 | 2021-03-12 | 2023-03-13 | Available |
| AC4DV | 9 | 55 | 2011-03-12 | 2013-03-13 | Available |
| AC4DW | 9 | 55 | 2035-03-29 | — | Active (Vanity) |
| AC4DX | 9 | 57 | 2033-08-08 | — | Active (Vanity) |
| AC4DY | 9 | 59 | 2008-05-06 | 2010-05-07 | Available |
| AC4DZ | 9 | 57 | — | — | Available |
| AC4EA | 9 | 45 | 2031-05-28 | — | Active (Vanity) |
| AC4EB | 9 | 49 | — | — | Available |
| AC4EC | 9 | 51 | 2021-03-26 | 2023-03-27 | Available |
| AC4ED | 9 | 47 | 2035-02-08 | — | Active (Vanity) |
| AC4EE | 9 | 41 | 2031-03-26 | — | Active |
| AC4EF | 9 | 49 | 2001-03-26 | 2003-03-27 | Available |
| AC4EG | 8 | 49 | 2031-03-26 | — | Active |
| AC4EH | 9 | 47 | 2035-01-28 | — | Active (Vanity) |
| AC4EI | 10 | 43 | 2001-03-26 | 2003-03-27 | Available |
| AC4EJ | 10 | 53 | 2031-08-02 | — | Active |
| AC4EK | 9 | 49 | 2001-04-02 | 2003-04-03 | Available |
| AC4EL | 9 | 49 | 2021-04-02 | 2023-04-03 | Available |
| AC4EM | 8 | 47 | 2035-06-09 | — | Active (Vanity) |
| AC4EN | 10 | 45 | 2011-04-02 | 2013-04-03 | Available |
| AC4EO | 9 | 51 | 2029-06-25 | — | Active (Vanity) |
| AC4EP | 9 | 51 | 2001-04-02 | 2003-04-03 | Available |
| AC4EQ | 9 | 53 | 2001-04-02 | 2003-04-03 | Available |
| AC4ER | 10 | 47 | 2034-08-16 | — | Active (Vanity) |
| AC4ES | 10 | 45 | — | — | Available |
| AC4ET | 9 | 43 | 2032-06-22 | — | Active |
| AC4EU | 10 | 47 | 2032-12-28 | — | Active (Vanity) |
| AC4EV | 9 | 49 | 2012-10-19 | 2014-10-20 | Available |
| AC4EW | 9 | 49 | 2022-04-01 | 2024-04-02 | Available |
| AC4EX | 9 | 51 | 2021-04-23 | 2023-04-24 | Available |
| AC4EY | 9 | 53 | 2011-04-23 | 2013-04-24 | Available |
| AC4EZ | 9 | 51 | 2001-04-23 | 2003-04-24 | Available |
| AC4FA | 9 | 53 | — | — | Available |
| AC4FB | 9 | 57 | 2031-04-30 | — | Active |
| AC4FC | 9 | 59 | 2014-06-20 | 2016-06-21 | Available |
| AC4FD | 9 | 55 | 2031-04-30 | — | Active |
| AC4FE | 9 | 49 | 2011-04-30 | 2013-05-01 | Available |
| AC4FF | 9 | 57 | 2022-12-29 | 2024-12-30 | Available |
| AC4FG | 8 | 57 | 2011-04-30 | 2013-05-01 | Available |
| AC4FH | 9 | 55 | 2021-04-30 | 2023-05-01 | Available |
| AC4FI | 10 | 51 | 2011-04-30 | 2013-05-01 | Available |
| AC4FJ | 10 | 61 | — | — | Available |
| AC4FK | 9 | 57 | 2031-06-15 | — | Active |
| AC4FL | 9 | 57 | 2023-02-26 | 2025-02-27 | Available |
| AC4FM | 8 | 55 | 2027-04-10 | — | Active (Vanity) |
| AC4FN | 10 | 53 | 2021-05-07 | 2023-05-08 | Available |
| AC4FO | 9 | 59 | 2011-05-14 | 2013-05-15 | Available |
| AC4FP | 9 | 59 | 2011-05-14 | 2013-05-15 | Available |
| AC4FQ | 9 | 61 | 2021-05-14 | 2023-05-15 | Available |
| AC4FR | 10 | 55 | — | — | Available |