District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| WO4BG | 8 | 61 | — | — | Available |
| WO4BH | 9 | 59 | — | — | Available |
| WO4BI | 10 | 55 | — | — | Available |
| WO4BJ | 10 | 65 | — | — | Available |
| WO4BK | 9 | 61 | — | — | Available |
| WO4BL | 9 | 61 | — | — | Available |
| WO4BM | 8 | 59 | — | — | Available |
| WO4BN | 10 | 57 | — | — | Available |
| WO4BO | 9 | 63 | — | — | Available |
| WO4BP | 9 | 63 | — | — | Available |
| WO4BQ | 9 | 65 | — | — | Available |
| WO4BR | 10 | 59 | — | — | Available |
| WO4BS | 10 | 57 | — | — | Available |
| WO4BT | 9 | 55 | — | — | Available |
| WO4BU | 10 | 59 | — | — | Available |
| WO4BV | 9 | 61 | — | — | Available |
| WO4BW | 9 | 61 | — | — | Available |
| WO4BX | 9 | 63 | 2027-06-06 | — | Active (Vanity) |
| WO4BY | 9 | 65 | — | — | Available |
| WO4BZ | 9 | 63 | — | — | Available |
| WO4CA | 9 | 59 | — | — | Available |
| WO4CB | 9 | 63 | — | — | Available |
| WO4CC | 9 | 65 | — | — | Available |
| WO4CD | 9 | 61 | — | — | Available |
| WO4CE | 9 | 55 | — | — | Available |
| WO4CF | 9 | 63 | — | — | Available |
| WO4CG | 8 | 63 | — | — | Available |
| WO4CH | 9 | 61 | — | — | Available |
| WO4CI | 10 | 57 | — | — | Available |
| WO4CJ | 10 | 67 | — | — | Available |
| WO4CK | 9 | 63 | — | — | Available |
| WO4CL | 9 | 63 | — | — | Available |
| WO4CM | 8 | 61 | — | — | Available |
| WO4CN | 10 | 59 | — | — | Available |
| WO4CO | 9 | 65 | — | — | Available |
| WO4CP | 9 | 65 | — | — | Available |
| WO4CQ | 9 | 67 | — | — | Available |
| WO4CR | 10 | 61 | — | — | Available |
| WO4CS | 10 | 59 | — | — | Available |
| WO4CT | 9 | 57 | — | — | Available |
| WO4CU | 10 | 61 | — | — | Available |
| WO4CV | 9 | 63 | — | — | Available |
| WO4CW | 9 | 63 | — | — | Available |
| WO4CX | 9 | 65 | — | — | Available |
| WO4CY | 9 | 67 | — | — | Available |
| WO4CZ | 9 | 65 | — | — | Available |
| WO4DA | 9 | 55 | — | — | Available |
| WO4DB | 9 | 59 | — | — | Available |
| WO4DC | 9 | 61 | — | — | Available |
| WO4DD | 9 | 57 | — | — | Available |
| WO4DE | 9 | 51 | — | — | Available |
| WO4DF | 9 | 59 | — | — | Available |
| WO4DG | 8 | 59 | — | — | Available |
| WO4DH | 9 | 57 | — | — | Available |
| WO4DI | 10 | 53 | — | — | Available |
| WO4DJ | 10 | 63 | — | — | Available |
| WO4DK | 9 | 59 | — | — | Available |
| WO4DL | 9 | 59 | — | — | Available |
| WO4DM | 8 | 57 | — | — | Available |
| WO4DN | 10 | 55 | — | — | Available |
| WO4DO | 9 | 61 | — | — | Available |
| WO4DP | 9 | 61 | — | — | Available |
| WO4DQ | 9 | 63 | — | — | Available |
| WO4DR | 10 | 57 | — | — | Available |
| WO4DS | 10 | 55 | — | — | Available |
| WO4DT | 9 | 53 | — | — | Available |
| WO4DU | 10 | 57 | — | — | Available |
| WO4DV | 9 | 59 | — | — | Available |
| WO4DW | 9 | 59 | — | — | Available |
| WO4DX | 9 | 61 | 2031-02-27 | — | Active (Vanity) |
| WO4DY | 9 | 63 | — | — | Available |
| WO4DZ | 9 | 61 | — | — | Available |
| WO4EA | 9 | 49 | — | — | Available |
| WO4EB | 9 | 53 | — | — | Available |
| WO4EC | 9 | 55 | 1999-10-26 | 2001-10-27 | Available |
| WO4ED | 9 | 51 | — | — | Available |
| WO4EE | 9 | 45 | — | — | Available |
| WO4EF | 9 | 53 | — | — | Available |
| WO4EG | 8 | 53 | — | — | Available |
| WO4EH | 9 | 51 | — | — | Available |
| WO4EI | 10 | 47 | — | — | Available |
| WO4EJ | 10 | 57 | — | — | Available |
| WO4EK | 9 | 53 | — | — | Available |
| WO4EL | 9 | 53 | — | — | Available |
| WO4EM | 8 | 51 | 2034-11-07 | — | Active (Vanity) |
| WO4EN | 10 | 49 | — | — | Available |
| WO4EO | 9 | 55 | — | — | Available |
| WO4EP | 9 | 55 | — | — | Available |
| WO4EQ | 9 | 57 | — | — | Available |
| WO4ER | 10 | 51 | — | — | Available |
| WO4ES | 10 | 49 | — | — | Available |
| WO4ET | 9 | 47 | — | — | Available |
| WO4EU | 10 | 51 | — | — | Available |
| WO4EV | 9 | 53 | — | — | Available |
| WO4EW | 9 | 53 | — | — | Available |
| WO4EX | 9 | 55 | — | — | Available |
| WO4EY | 9 | 57 | — | — | Available |
| WO4EZ | 9 | 55 | — | — | Available |
| WO4FA | 9 | 57 | — | — | Available |
| WO4FB | 9 | 61 | — | — | Available |