District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| WB4SA | 10 | 51 | 2029-05-14 | — | Active (Vanity) |
| WB4SB | 10 | 55 | — | — | Available |
| WB4SC | 10 | 57 | 2028-05-20 | — | Active (Vanity) |
| WB4SD | 10 | 53 | — | — | Available |
| WB4SE | 10 | 47 | — | — | Available |
| WB4SF | 10 | 55 | — | — | Available |
| WB4SG | 9 | 55 | — | — | Available |
| WB4SH | 10 | 53 | — | — | Available |
| WB4SI | 11 | 49 | — | — | Available |
| WB4SJ | 11 | 59 | — | — | Available |
| WB4SK | 10 | 55 | — | — | Available |
| WB4SL | 10 | 55 | — | — | Available |
| WB4SM | 9 | 53 | — | — | Available |
| WB4SN | 11 | 51 | — | — | Available |
| WB4SO | 10 | 57 | — | — | Available |
| WB4SP | 10 | 57 | — | — | Available |
| WB4SQ | 10 | 59 | 2030-06-09 | — | Active (Vanity) |
| WB4SR | 11 | 53 | — | — | Available |
| WB4SS | 11 | 51 | — | — | Available |
| WB4ST | 10 | 49 | — | — | Available |
| WB4SU | 11 | 53 | — | — | Available |
| WB4SV | 10 | 55 | — | — | Available |
| WB4SW | 10 | 55 | — | — | Available |
| WB4SX | 10 | 57 | — | — | Available |
| WB4SY | 10 | 59 | — | — | Available |
| WB4SZ | 10 | 57 | — | — | Available |
| WB4TA | 9 | 49 | — | — | Available |
| WB4TB | 9 | 53 | — | — | Available |
| WB4TC | 9 | 55 | 2032-06-07 | — | Active (Vanity) |
| WB4TD | 9 | 51 | — | — | Available |
| WB4TE | 9 | 45 | — | — | Available |
| WB4TF | 9 | 53 | 2034-09-16 | — | Active (Vanity) |
| WB4TG | 8 | 53 | 2032-04-15 | — | Active (Vanity) |
| WB4TH | 9 | 51 | — | — | Available |
| WB4TI | 10 | 47 | — | — | Available |
| WB4TJ | 10 | 57 | — | — | Available |
| WB4TK | 9 | 53 | — | — | Available |
| WB4TL | 9 | 53 | — | — | Available |
| WB4TM | 8 | 51 | 2036-02-09 | — | Active (Vanity) |
| WB4TN | 10 | 49 | — | — | Available |
| WB4TO | 9 | 55 | — | — | Available |
| WB4TP | 9 | 55 | 2022-07-17 | 2024-07-18 | Available |
| WB4TQ | 9 | 57 | — | — | Available |
| WB4TR | 10 | 51 | — | — | Available |
| WB4TS | 10 | 49 | — | — | Available |
| WB4TT | 9 | 47 | 2036-08-16 | — | Active (Vanity) |
| WB4TU | 10 | 51 | — | — | Available |
| WB4TV | 9 | 53 | — | — | Available |
| WB4TW | 9 | 53 | 2027-06-20 | — | Active (Vanity) |
| WB4TX | 9 | 55 | — | — | Available |
| WB4TY | 9 | 57 | — | — | Available |
| WB4TZ | 9 | 55 | — | — | Available |
| WB4UA | 10 | 53 | — | — | Available |
| WB4UB | 10 | 57 | — | — | Available |
| WB4UC | 10 | 59 | — | — | Available |
| WB4UD | 10 | 55 | 2024-11-18 | — | Active (Vanity) |
| WB4UE | 10 | 49 | — | — | Available |
| WB4UF | 10 | 57 | — | — | Available |
| WB4UG | 9 | 57 | — | — | Available |
| WB4UH | 10 | 55 | — | — | Available |
| WB4UI | 11 | 51 | — | — | Available |
| WB4UJ | 11 | 61 | — | — | Available |
| WB4UK | 10 | 57 | — | — | Available |
| WB4UL | 10 | 57 | — | — | Available |
| WB4UM | 9 | 55 | — | — | Available |
| WB4UN | 11 | 53 | — | — | Available |
| WB4UO | 10 | 59 | — | — | Available |
| WB4UP | 10 | 59 | — | — | Available |
| WB4UQ | 10 | 61 | — | — | Available |
| WB4UR | 11 | 55 | 2035-12-15 | — | Active (Vanity) |
| WB4US | 11 | 53 | — | — | Available |
| WB4UT | 10 | 51 | 2030-08-25 | — | Active (Vanity) |
| WB4UU | 11 | 55 | — | — | Available |
| WB4UV | 10 | 57 | — | — | Available |
| WB4UW | 10 | 57 | — | — | Available |
| WB4UX | 10 | 59 | — | — | Available |
| WB4UY | 10 | 61 | — | — | Available |
| WB4UZ | 10 | 59 | — | — | Available |
| WB4VA | 9 | 55 | — | — | Available |
| WB4VB | 9 | 59 | — | — | Available |
| WB4VC | 9 | 61 | — | — | Available |
| WB4VD | 9 | 57 | — | — | Available |
| WB4VE | 9 | 51 | — | — | Available |
| WB4VF | 9 | 59 | — | — | Available |
| WB4VG | 8 | 59 | — | — | Available |
| WB4VH | 9 | 57 | — | — | Available |
| WB4VI | 10 | 53 | — | — | Available |
| WB4VJ | 10 | 63 | — | — | Available |
| WB4VK | 9 | 59 | — | — | Available |
| WB4VL | 9 | 59 | — | — | Available |
| WB4VM | 8 | 57 | — | — | Available |
| WB4VN | 10 | 55 | — | — | Available |
| WB4VO | 9 | 61 | — | — | Available |
| WB4VP | 9 | 61 | — | — | Available |
| WB4VQ | 9 | 63 | — | — | Available |
| WB4VR | 10 | 57 | — | — | Available |
| WB4VS | 10 | 55 | — | — | Available |
| WB4VT | 9 | 53 | — | — | Available |
| WB4VU | 10 | 57 | — | — | Available |
| WB4VV | 9 | 59 | — | — | Available |