District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| W4UJJ | 12 | 65 | — | — | Available |
| W4UJK | 11 | 61 | 2028-01-29 | — | Active |
| W4UJL | 11 | 61 | 2015-04-27 | 2017-04-28 | Available |
| W4UJM | 10 | 59 | 1998-06-14 | 2000-06-15 | Available |
| W4UJN | 12 | 57 | — | — | Available |
| W4UJO | 11 | 63 | 2014-09-09 | 2016-09-10 | Available |
| W4UJP | 11 | 63 | 2017-03-27 | 2019-03-28 | Available |
| W4UJQ | 11 | 65 | — | — | Available |
| W4UJR | 12 | 59 | — | — | Available |
| W4UJS | 12 | 57 | — | — | Available |
| W4UJT | 11 | 55 | 2001-02-17 | 2003-02-18 | Available |
| W4UJU | 12 | 59 | — | — | Available |
| W4UJV | 11 | 61 | 2018-07-14 | 2020-07-15 | Available |
| W4UJW | 11 | 61 | — | — | Available |
| W4UJX | 11 | 63 | — | — | Available |
| W4UJY | 11 | 65 | — | — | Available |
| W4UJZ | 11 | 63 | 2010-10-02 | 2012-10-03 | Available |
| W4UKA | 10 | 53 | 2003-10-12 | 2005-10-13 | Available |
| W4UKB | 10 | 57 | 2030-09-19 | — | Active (Vanity) |
| W4UKC | 10 | 59 | 2021-03-23 | 2023-03-24 | Available |
| W4UKD | 10 | 55 | — | — | Available |
| W4UKE | 10 | 49 | 2025-08-20 | 2027-08-21 | Canceled (grace period) |
| W4UKF | 10 | 57 | — | — | Available |
| W4UKG | 9 | 57 | 2014-11-15 | 2016-11-16 | Available |
| W4UKH | 10 | 55 | — | — | Available |
| W4UKI | 11 | 51 | 2017-03-03 | 2019-03-10 | Available |
| W4UKJ | 11 | 61 | 2029-12-07 | — | Active (Vanity) |
| W4UKK | 10 | 57 | — | — | Available |
| W4UKL | 10 | 57 | — | — | Available |
| W4UKM | 9 | 55 | — | — | Available |
| W4UKN | 11 | 53 | — | — | Available |
| W4UKO | 10 | 59 | — | — | Available |
| W4UKP | 10 | 59 | — | — | Available |
| W4UKQ | 10 | 61 | 2006-08-29 | 2008-08-30 | Available |
| W4UKR | 11 | 55 | 2031-12-03 | — | Active (Vanity) |
| W4UKS | 11 | 53 | — | — | Available |
| W4UKT | 10 | 51 | — | — | Available |
| W4UKU | 11 | 55 | — | — | Available |
| W4UKV | 10 | 57 | 2027-05-29 | — | Active |
| W4UKW | 10 | 57 | — | — | Available |
| W4UKX | 10 | 59 | 2024-09-17 | 2026-09-18 | Available |
| W4UKY | 10 | 61 | 2024-07-22 | 2026-07-23 | Available |
| W4UKZ | 10 | 59 | 2006-05-16 | 2008-05-17 | Available |
| W4ULA | 10 | 53 | — | — | Available |
| W4ULB | 10 | 57 | 2029-03-07 | — | Active (Vanity) |
| W4ULC | 10 | 59 | 2025-02-01 | — | Active |
| W4ULD | 10 | 55 | 2014-07-15 | 2016-07-16 | Available |
| W4ULE | 10 | 49 | 2005-09-26 | 2007-09-27 | Available |
| W4ULF | 10 | 57 | — | — | Available |
| W4ULG | 9 | 57 | — | — | Available |
| W4ULH | 10 | 55 | 2033-11-30 | — | Active |
| W4ULI | 11 | 51 | — | — | Available |
| W4ULJ | 11 | 61 | 2006-11-04 | 2008-11-05 | Available |
| W4ULK | 10 | 57 | — | — | Available |
| W4ULL | 10 | 57 | 2027-12-20 | — | Active (Vanity) |
| W4ULM | 9 | 55 | 2012-02-25 | 2014-02-26 | Available |
| W4ULN | 11 | 53 | — | — | Available |
| W4ULO | 10 | 59 | — | — | Available |
| W4ULP | 10 | 59 | — | — | Available |
| W4ULQ | 10 | 61 | 2029-05-25 | — | Active |
| W4ULR | 11 | 55 | — | — | Available |
| W4ULS | 11 | 53 | — | — | Available |
| W4ULT | 10 | 51 | 2017-02-20 | 2019-02-21 | Available |
| W4ULU | 11 | 55 | — | — | Available |
| W4ULV | 10 | 57 | — | — | Available |
| W4ULW | 10 | 57 | 2016-08-12 | 2018-08-13 | Available |
| W4ULX | 10 | 59 | — | — | Available |
| W4ULY | 10 | 61 | 2027-10-27 | — | Active |
| W4ULZ | 10 | 59 | — | — | Available |
| W4UMA | 9 | 51 | 2017-03-26 | 2019-03-27 | Available |
| W4UMB | 9 | 55 | — | — | Available |
| W4UMC | 9 | 57 | 2016-03-26 | 2018-03-27 | Available |
| W4UMD | 9 | 53 | — | — | Available |
| W4UME | 9 | 47 | 2031-10-13 | — | Active (Vanity) |
| W4UMF | 9 | 55 | — | — | Available |
| W4UMG | 8 | 55 | — | — | Available |
| W4UMH | 9 | 53 | 2017-11-14 | 2019-11-15 | Available |
| W4UMI | 10 | 49 | — | — | Available |
| W4UMJ | 10 | 59 | — | — | Available |
| W4UMK | 9 | 55 | — | — | Available |
| W4UML | 9 | 55 | 2027-01-24 | — | Active (Vanity) |
| W4UMM | 8 | 53 | 2006-06-07 | 2008-06-08 | Available |
| W4UMN | 10 | 51 | — | — | Available |
| W4UMO | 9 | 57 | 2014-10-12 | 2016-10-13 | Available |
| W4UMP | 9 | 57 | 2013-01-10 | 2015-01-11 | Available |
| W4UMQ | 9 | 59 | — | — | Available |
| W4UMR | 10 | 53 | 2027-12-09 | — | Active |
| W4UMS | 10 | 51 | — | — | Available |
| W4UMT | 9 | 49 | 2015-12-11 | 2017-12-12 | Available |
| W4UMU | 10 | 53 | — | — | Available |
| W4UMV | 9 | 55 | — | — | Available |
| W4UMW | 9 | 55 | 2027-10-27 | — | Active (Vanity) |
| W4UMX | 9 | 57 | 1998-04-12 | 2000-04-13 | Available |
| W4UMY | 9 | 59 | 2027-06-19 | — | Active |
| W4UMZ | 9 | 57 | — | — | Available |
| W4UNA | 11 | 49 | 2023-05-21 | 2025-05-22 | Available |
| W4UNB | 11 | 53 | — | — | Available |
| W4UNC | 11 | 55 | 2036-11-04 | — | Active (Vanity) |
| W4UND | 11 | 51 | — | — | Available |
| W4UNE | 11 | 45 | — | — | Available |