District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| W4URB | 11 | 55 | — | — | Available |
| W4URC | 11 | 57 | 2004-07-14 | 2006-07-15 | Available |
| W4URD | 11 | 53 | — | — | Available |
| W4URE | 11 | 47 | 2025-11-13 | — | Active (Vanity) |
| W4URF | 11 | 55 | 2010-06-09 | 2012-06-10 | Available |
| W4URG | 10 | 55 | 2036-03-24 | — | Active (Vanity) |
| W4URH | 11 | 53 | 2007-11-20 | 2009-11-21 | Available |
| W4URI | 12 | 49 | 2022-05-18 | 2024-05-19 | Available |
| W4URJ | 12 | 59 | — | — | Available |
| W4URK | 11 | 55 | — | — | Available |
| W4URL | 11 | 55 | 2018-04-20 | 2020-04-21 | Available |
| W4URM | 10 | 53 | — | — | Available |
| W4URN | 12 | 51 | — | — | Available |
| W4URO | 11 | 57 | — | — | Available |
| W4URP | 11 | 57 | 2026-01-12 | — | Active (Vanity) |
| W4URQ | 11 | 59 | — | — | Available |
| W4URR | 12 | 53 | 2006-03-22 | 2008-03-23 | Available |
| W4URS | 12 | 51 | 2024-11-15 | — | Active |
| W4URT | 11 | 49 | — | — | Available |
| W4URU | 12 | 53 | 2016-12-18 | 2018-12-19 | Available |
| W4URV | 11 | 55 | — | — | Available |
| W4URW | 11 | 55 | — | — | Available |
| W4URX | 11 | 57 | — | — | Available |
| W4URY | 11 | 59 | — | — | Available |
| W4URZ | 11 | 57 | 2028-08-03 | — | Active |
| W4USA | 11 | 49 | 2036-11-04 | — | Active (Vanity) |
| W4USB | 11 | 53 | 2026-08-30 | — | Active |
| W4USC | 11 | 55 | 2029-08-20 | — | Active (Vanity) |
| W4USD | 11 | 51 | 2030-02-12 | — | Active (Vanity) |
| W4USE | 11 | 45 | 1997-10-06 | 1999-10-07 | Available |
| W4USF | 11 | 53 | 2034-05-21 | — | Active (Vanity) |
| W4USG | 10 | 53 | 1998-07-26 | 2000-07-27 | Available |
| W4USH | 11 | 51 | 2027-12-22 | — | Active (Vanity) |
| W4USI | 12 | 47 | 2029-11-16 | — | Active (Vanity) |
| W4USJ | 12 | 57 | — | — | Available |
| W4USK | 11 | 53 | — | — | Available |
| W4USL | 11 | 53 | 2019-08-04 | 2021-08-05 | Available |
| W4USM | 10 | 51 | 2036-12-04 | — | Active (Vanity) |
| W4USN | 12 | 49 | 2034-01-30 | — | Active (Vanity) |
| W4USO | 11 | 55 | 2007-04-23 | 2009-04-24 | Available |
| W4USP | 11 | 55 | 2008-08-09 | 2010-08-10 | Available |
| W4USQ | 11 | 57 | 2007-05-27 | 2009-05-28 | Available |
| W4USR | 12 | 51 | 2031-10-10 | — | Active (Vanity) |
| W4USS | 12 | 49 | 2035-05-29 | — | Active (Vanity) |
| W4UST | 11 | 47 | — | — | Available |
| W4USU | 12 | 51 | — | — | Available |
| W4USV | 11 | 53 | — | — | Available |
| W4USW | 11 | 53 | 2006-06-10 | 2008-06-11 | Available |
| W4USX | 11 | 55 | 2026-07-12 | — | Active (Vanity) |
| W4USY | 11 | 57 | — | — | Available |
| W4USZ | 11 | 55 | — | — | Available |
| W4UTA | 10 | 47 | 2029-11-20 | — | Active (Vanity) |
| W4UTB | 10 | 51 | — | — | Available |
| W4UTC | 10 | 53 | 2030-04-16 | — | Active (Vanity) |
| W4UTD | 10 | 49 | 2029-11-13 | — | Active (Vanity) |
| W4UTE | 10 | 43 | — | — | Available |
| W4UTF | 10 | 51 | — | — | Available |
| W4UTG | 9 | 51 | 2026-06-13 | — | Active |
| W4UTH | 10 | 49 | — | — | Available |
| W4UTI | 11 | 45 | 2026-06-19 | — | Active (Vanity) |
| W4UTJ | 11 | 55 | — | — | Available |
| W4UTK | 10 | 51 | 2027-01-08 | — | Active |
| W4UTL | 10 | 51 | — | — | Available |
| W4UTM | 9 | 49 | 2023-06-17 | 2025-06-18 | Available |
| W4UTN | 11 | 47 | 2012-08-03 | 2014-08-04 | Available |
| W4UTO | 10 | 53 | 2008-04-16 | 2010-04-17 | Available |
| W4UTP | 10 | 53 | — | — | Available |
| W4UTQ | 10 | 55 | — | — | Available |
| W4UTR | 11 | 49 | 2027-07-14 | — | Active (Vanity) |
| W4UTS | 11 | 47 | 2034-10-16 | — | Active (Vanity) |
| W4UTT | 10 | 45 | — | — | Available |
| W4UTU | 11 | 49 | 2007-12-23 | 2009-12-24 | Available |
| W4UTV | 10 | 51 | — | — | Available |
| W4UTW | 10 | 51 | — | — | Available |
| W4UTX | 10 | 53 | 2036-02-06 | — | Active (Vanity) |
| W4UTY | 10 | 55 | — | — | Available |
| W4UTZ | 10 | 53 | 2032-03-04 | — | Active (Vanity) |
| W4UUA | 11 | 51 | — | — | Available |
| W4UUB | 11 | 55 | 2016-12-10 | 2018-12-11 | Available |
| W4UUC | 11 | 57 | 2014-01-24 | 2016-01-25 | Available |
| W4UUD | 11 | 53 | 2016-06-20 | 2018-06-21 | Available |
| W4UUE | 11 | 47 | — | — | Available |
| W4UUF | 11 | 55 | — | — | Available |
| W4UUG | 10 | 55 | — | — | Available |
| W4UUH | 11 | 53 | — | — | Available |
| W4UUI | 12 | 49 | 2014-01-18 | 2016-01-19 | Available |
| W4UUJ | 12 | 59 | 2004-04-05 | 2006-04-06 | Available |
| W4UUK | 11 | 55 | 2015-11-28 | 2017-11-29 | Available |
| W4UUL | 11 | 55 | — | — | Available |
| W4UUM | 10 | 53 | 2035-09-12 | — | Active |
| W4UUN | 12 | 51 | — | — | Available |
| W4UUO | 11 | 57 | — | — | Available |
| W4UUP | 11 | 57 | — | — | Available |
| W4UUQ | 11 | 59 | 2005-03-13 | 2007-03-14 | Available |
| W4UUR | 12 | 53 | — | — | Available |
| W4UUS | 12 | 51 | — | — | Available |
| W4UUT | 11 | 49 | — | — | Available |
| W4UUU | 12 | 53 | 2024-01-30 | 2026-01-31 | Available |
| W4UUV | 11 | 55 | — | — | Available |
| W4UUW | 11 | 55 | 2024-03-05 | 2026-03-06 | Available |