District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| WB4OE | 9 | 53 | — | — | Available |
| WB4OF | 9 | 61 | — | — | Available |
| WB4OG | 8 | 61 | — | — | Available |
| WB4OH | 9 | 59 | — | — | Available |
| WB4OI | 10 | 55 | — | — | Available |
| WB4OJ | 10 | 65 | — | — | Available |
| WB4OK | 9 | 61 | — | — | Available |
| WB4OL | 9 | 61 | — | — | Available |
| WB4OM | 8 | 59 | — | — | Available |
| WB4ON | 10 | 57 | — | — | Available |
| WB4OO | 9 | 63 | — | — | Available |
| WB4OP | 9 | 63 | — | — | Available |
| WB4OQ | 9 | 65 | — | — | Available |
| WB4OR | 10 | 59 | — | — | Available |
| WB4OS | 10 | 57 | — | — | Available |
| WB4OT | 9 | 55 | — | — | Available |
| WB4OU | 10 | 59 | — | — | Available |
| WB4OV | 9 | 61 | — | — | Available |
| WB4OW | 9 | 61 | — | — | Available |
| WB4OX | 9 | 63 | 2025-12-01 | — | Active (Vanity) |
| WB4OY | 9 | 65 | — | — | Available |
| WB4OZ | 9 | 63 | — | — | Available |
| WB4PA | 9 | 57 | — | — | Available |
| WB4PB | 9 | 61 | — | — | Available |
| WB4PC | 9 | 63 | — | — | Available |
| WB4PD | 9 | 59 | 2030-03-20 | — | Active (Vanity) |
| WB4PE | 9 | 53 | — | — | Available |
| WB4PF | 9 | 61 | — | — | Available |
| WB4PG | 8 | 61 | — | — | Available |
| WB4PH | 9 | 59 | — | — | Available |
| WB4PI | 10 | 55 | — | — | Available |
| WB4PJ | 10 | 65 | — | — | Available |
| WB4PK | 9 | 61 | — | — | Available |
| WB4PL | 9 | 61 | — | — | Available |
| WB4PM | 8 | 59 | 2033-10-01 | — | Active (Vanity) |
| WB4PN | 10 | 57 | — | — | Available |
| WB4PO | 9 | 63 | — | — | Available |
| WB4PP | 9 | 63 | — | — | Available |
| WB4PQ | 9 | 65 | — | — | Available |
| WB4PR | 10 | 59 | — | — | Available |
| WB4PS | 10 | 57 | — | — | Available |
| WB4PT | 9 | 55 | — | — | Available |
| WB4PU | 10 | 59 | — | — | Available |
| WB4PV | 9 | 61 | — | — | Available |
| WB4PW | 9 | 61 | 2031-10-05 | — | Active (Vanity) |
| WB4PX | 9 | 63 | — | — | Available |
| WB4PY | 9 | 65 | — | — | Available |
| WB4PZ | 9 | 63 | — | — | Available |
| WB4QA | 9 | 59 | — | — | Available |
| WB4QB | 9 | 63 | — | — | Available |
| WB4QC | 9 | 65 | — | — | Available |
| WB4QD | 9 | 61 | — | — | Available |
| WB4QE | 9 | 55 | — | — | Available |
| WB4QF | 9 | 63 | — | — | Available |
| WB4QG | 8 | 63 | — | — | Available |
| WB4QH | 9 | 61 | — | — | Available |
| WB4QI | 10 | 57 | — | — | Available |
| WB4QJ | 10 | 67 | — | — | Available |
| WB4QK | 9 | 63 | — | — | Available |
| WB4QL | 9 | 63 | — | — | Available |
| WB4QM | 8 | 61 | — | — | Available |
| WB4QN | 10 | 59 | — | — | Available |
| WB4QO | 9 | 65 | — | — | Available |
| WB4QP | 9 | 65 | — | — | Available |
| WB4QQ | 9 | 67 | — | — | Available |
| WB4QR | 10 | 61 | — | — | Available |
| WB4QS | 10 | 59 | — | — | Available |
| WB4QT | 9 | 57 | — | — | Available |
| WB4QU | 10 | 61 | — | — | Available |
| WB4QV | 9 | 63 | — | — | Available |
| WB4QW | 9 | 63 | — | — | Available |
| WB4QX | 9 | 65 | — | — | Available |
| WB4QY | 9 | 67 | — | — | Available |
| WB4QZ | 9 | 65 | — | — | Available |
| WB4RA | 10 | 53 | 2036-05-24 | — | Active (Vanity) |
| WB4RB | 10 | 57 | — | — | Available |
| WB4RC | 10 | 59 | 2035-12-15 | — | Active (Vanity) |
| WB4RD | 10 | 55 | — | — | Available |
| WB4RE | 10 | 49 | — | — | Available |
| WB4RF | 10 | 57 | 2036-08-02 | — | Active (Vanity) |
| WB4RG | 9 | 57 | 2029-06-02 | — | Active (Vanity) |
| WB4RH | 10 | 55 | — | — | Available |
| WB4RI | 11 | 51 | 2034-01-03 | — | Active (Vanity) |
| WB4RJ | 11 | 61 | — | — | Available |
| WB4RK | 10 | 57 | — | — | Available |
| WB4RL | 10 | 57 | 2034-02-19 | — | Active (Vanity) |
| WB4RM | 9 | 55 | 2029-03-31 | — | Active (Vanity) |
| WB4RN | 11 | 53 | 2031-04-27 | — | Active (Vanity) |
| WB4RO | 10 | 59 | — | — | Available |
| WB4RP | 10 | 59 | — | — | Available |
| WB4RQ | 10 | 61 | — | — | Available |
| WB4RR | 11 | 55 | — | — | Available |
| WB4RS | 11 | 53 | — | — | Available |
| WB4RT | 10 | 51 | 2032-03-29 | — | Active (Vanity) |
| WB4RU | 11 | 55 | — | — | Available |
| WB4RV | 10 | 57 | — | — | Available |
| WB4RW | 10 | 57 | 2036-11-26 | — | Active (Vanity) |
| WB4RX | 10 | 59 | — | — | Available |
| WB4RY | 10 | 61 | — | — | Available |
| WB4RZ | 10 | 59 | — | — | Available |