District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| W4UBR | 11 | 55 | — | — | Available |
| W4UBS | 11 | 53 | — | — | Available |
| W4UBT | 10 | 51 | 2027-03-11 | — | Active |
| W4UBU | 11 | 55 | — | — | Available |
| W4UBV | 10 | 57 | 2007-04-23 | 2009-04-24 | Available |
| W4UBW | 10 | 57 | — | — | Available |
| W4UBX | 10 | 59 | — | — | Available |
| W4UBY | 10 | 61 | — | — | Available |
| W4UBZ | 10 | 59 | — | — | Available |
| W4UCA | 10 | 55 | 2024-11-26 | — | Active (Vanity) |
| W4UCB | 10 | 59 | — | — | Available |
| W4UCC | 10 | 61 | — | — | Available |
| W4UCD | 10 | 57 | — | — | Available |
| W4UCE | 10 | 51 | — | — | Available |
| W4UCF | 10 | 59 | 2024-03-05 | 2026-03-06 | Available |
| W4UCG | 9 | 59 | 2029-05-31 | — | Active (Vanity) |
| W4UCH | 10 | 57 | 2009-04-14 | 2011-04-15 | Available |
| W4UCI | 11 | 53 | 2036-07-16 | — | Active |
| W4UCJ | 11 | 63 | 2028-07-30 | — | Active |
| W4UCK | 10 | 59 | 2027-09-17 | — | Active (Vanity) |
| W4UCL | 10 | 59 | 2031-02-11 | — | Active (Vanity) |
| W4UCM | 9 | 57 | 2019-07-19 | 2021-07-20 | Available |
| W4UCN | 11 | 55 | — | — | Available |
| W4UCO | 10 | 61 | — | — | Available |
| W4UCP | 10 | 61 | — | — | Available |
| W4UCQ | 10 | 63 | — | — | Available |
| W4UCR | 11 | 57 | — | — | Available |
| W4UCS | 11 | 55 | — | — | Available |
| W4UCT | 10 | 53 | — | — | Available |
| W4UCU | 11 | 57 | — | — | Available |
| W4UCV | 10 | 59 | — | — | Available |
| W4UCW | 10 | 59 | — | — | Available |
| W4UCX | 10 | 61 | 2029-04-08 | — | Active (Vanity) |
| W4UCY | 10 | 63 | — | — | Available |
| W4UCZ | 10 | 61 | 2017-10-27 | 2019-10-28 | Available |
| W4UDA | 10 | 51 | — | — | Available |
| W4UDB | 10 | 55 | 2022-03-05 | 2024-03-06 | Available |
| W4UDC | 10 | 57 | — | — | Available |
| W4UDD | 10 | 53 | — | — | Available |
| W4UDE | 10 | 47 | 2027-08-14 | — | Active |
| W4UDF | 10 | 55 | — | — | Available |
| W4UDG | 9 | 55 | — | — | Available |
| W4UDH | 10 | 53 | 2028-01-02 | — | Active |
| W4UDI | 11 | 49 | 2007-06-24 | 2009-06-25 | Available |
| W4UDJ | 11 | 59 | 2028-01-13 | — | Active (Vanity) |
| W4UDK | 10 | 55 | — | — | Available |
| W4UDL | 10 | 55 | — | — | Available |
| W4UDM | 9 | 53 | — | — | Available |
| W4UDN | 11 | 51 | — | — | Available |
| W4UDO | 10 | 57 | 2030-08-03 | — | Active (Vanity) |
| W4UDP | 10 | 57 | — | — | Available |
| W4UDQ | 10 | 59 | 2027-01-27 | — | Active |
| W4UDR | 11 | 53 | — | — | Available |
| W4UDS | 11 | 51 | — | — | Available |
| W4UDT | 10 | 49 | 2030-11-28 | — | Active (Vanity) |
| W4UDU | 11 | 53 | 2014-01-25 | 2016-01-26 | Available |
| W4UDV | 10 | 55 | — | — | Available |
| W4UDW | 10 | 55 | — | — | Available |
| W4UDX | 10 | 57 | 2034-02-16 | — | Active (Vanity) |
| W4UDY | 10 | 59 | 2005-01-26 | 2007-01-27 | Available |
| W4UDZ | 10 | 57 | — | — | Available |
| W4UEA | 10 | 45 | 2014-05-24 | 2016-05-25 | Available |
| W4UEB | 10 | 49 | 2027-07-29 | — | Active |
| W4UEC | 10 | 51 | — | — | Available |
| W4UED | 10 | 47 | — | — | Available |
| W4UEE | 10 | 41 | — | — | Available |
| W4UEF | 10 | 49 | 2030-10-17 | — | Active (Vanity) |
| W4UEG | 9 | 49 | — | — | Available |
| W4UEH | 10 | 47 | 2016-07-29 | 2018-07-30 | Available |
| W4UEI | 11 | 43 | 2011-10-17 | 2013-10-18 | Available |
| W4UEJ | 11 | 53 | — | — | Available |
| W4UEK | 10 | 49 | 2034-02-13 | — | Active (Vanity) |
| W4UEL | 10 | 49 | — | — | Available |
| W4UEM | 9 | 47 | 2030-08-08 | — | Active (Vanity) |
| W4UEN | 11 | 45 | — | — | Available |
| W4UEO | 10 | 51 | 2033-06-23 | — | Active (Vanity) |
| W4UEP | 10 | 51 | — | — | Available |
| W4UEQ | 10 | 53 | — | — | Available |
| W4UER | 11 | 47 | — | — | Available |
| W4UES | 11 | 45 | — | — | Available |
| W4UET | 10 | 43 | 2002-01-14 | 2004-01-15 | Available |
| W4UEU | 11 | 47 | — | — | Available |
| W4UEV | 10 | 49 | — | — | Available |
| W4UEW | 10 | 49 | — | — | Available |
| W4UEX | 10 | 51 | — | — | Available |
| W4UEY | 10 | 53 | — | — | Available |
| W4UEZ | 10 | 51 | 2027-11-28 | — | Active (Vanity) |
| W4UFA | 10 | 53 | — | — | Available |
| W4UFB | 10 | 57 | — | — | Available |
| W4UFC | 10 | 59 | — | — | Available |
| W4UFD | 10 | 55 | 2009-01-11 | 2011-01-12 | Available |
| W4UFE | 10 | 49 | 2019-09-23 | 2021-09-24 | Available |
| W4UFF | 10 | 57 | — | — | Available |
| W4UFG | 9 | 57 | 2029-03-10 | — | Active (Vanity) |
| W4UFH | 10 | 55 | — | — | Available |
| W4UFI | 11 | 51 | 1999-08-29 | 2001-08-30 | Available |
| W4UFJ | 11 | 61 | — | — | Available |
| W4UFK | 10 | 57 | 2016-06-27 | 2018-06-28 | Available |
| W4UFL | 10 | 57 | 2029-03-25 | — | Active (Vanity) |
| W4UFM | 9 | 55 | 2023-09-16 | 2025-09-17 | Available |