District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| W4NZU | 11 | 55 | 2003-11-09 | 2005-11-10 | Available |
| W4NZV | 10 | 57 | 2008-10-21 | 2010-10-22 | Available |
| W4NZW | 10 | 57 | — | — | Available |
| W4NZX | 10 | 59 | 2030-12-15 | — | Active (Vanity) |
| W4NZY | 10 | 61 | 2035-09-27 | — | Active (Vanity) |
| W4NZZ | 10 | 59 | 1997-09-29 | 1999-09-30 | Available |
| W4OAA | 9 | 53 | — | — | Available |
| W4OAB | 9 | 57 | 2002-03-07 | 2004-03-08 | Available |
| W4OAC | 9 | 59 | 2006-08-13 | 2008-08-14 | Available |
| W4OAD | 9 | 55 | — | — | Available |
| W4OAE | 9 | 49 | 2021-07-28 | 2023-07-29 | Available |
| W4OAF | 9 | 57 | 2028-01-07 | — | Active (Vanity) |
| W4OAG | 8 | 57 | 2004-03-01 | 2006-03-02 | Available |
| W4OAH | 9 | 55 | 2034-03-22 | — | Active |
| W4OAI | 10 | 51 | — | — | Available |
| W4OAJ | 10 | 61 | 2004-07-15 | 2006-07-16 | Available |
| W4OAK | 9 | 57 | 2034-02-16 | — | Active (Vanity) |
| W4OAL | 9 | 57 | — | — | Available |
| W4OAM | 8 | 55 | 2024-05-24 | 2026-05-25 | Available |
| W4OAN | 10 | 53 | — | — | Available |
| W4OAO | 9 | 59 | 2034-12-21 | — | Active (Vanity) |
| W4OAP | 9 | 59 | — | — | Available |
| W4OAQ | 9 | 61 | 2030-04-29 | — | Active |
| W4OAR | 10 | 55 | 2028-05-18 | — | Active (Vanity) |
| W4OAS | 10 | 53 | 2031-10-29 | — | Active |
| W4OAT | 9 | 51 | — | — | Available |
| W4OAU | 10 | 55 | — | — | Available |
| W4OAV | 9 | 57 | — | — | Available |
| W4OAW | 9 | 57 | — | — | Available |
| W4OAX | 9 | 59 | 2017-11-18 | 2019-11-19 | Available |
| W4OAY | 9 | 61 | — | — | Available |
| W4OAZ | 9 | 59 | 2026-12-10 | — | Active |
| W4OBA | 9 | 57 | 2035-03-18 | — | Active (Vanity) |
| W4OBB | 9 | 61 | 2022-04-28 | 2024-04-29 | Available |
| W4OBC | 9 | 63 | 2026-06-14 | — | Active |
| W4OBD | 9 | 59 | — | — | Available |
| W4OBE | 9 | 53 | 2008-02-20 | 2010-02-21 | Available |
| W4OBF | 9 | 61 | 2003-11-01 | 2005-11-02 | Available |
| W4OBG | 8 | 61 | — | — | Available |
| W4OBH | 9 | 59 | 2024-04-26 | 2026-04-27 | Available |
| W4OBI | 10 | 55 | 2031-01-19 | — | Active (Vanity) |
| W4OBJ | 10 | 65 | — | — | Available |
| W4OBK | 9 | 61 | 2008-02-05 | 2010-02-06 | Available |
| W4OBL | 9 | 61 | 2028-04-01 | — | Active (Vanity) |
| W4OBM | 8 | 59 | — | — | Available |
| W4OBN | 10 | 57 | — | — | Available |
| W4OBO | 9 | 63 | 2015-01-13 | 2017-01-14 | Available |
| W4OBP | 9 | 63 | — | — | Available |
| W4OBQ | 9 | 65 | 2011-08-21 | 2013-08-22 | Available |
| W4OBR | 10 | 59 | — | — | Available |
| W4OBS | 10 | 57 | 2025-01-25 | — | Active |
| W4OBT | 9 | 55 | 2015-03-16 | 2017-03-17 | Available |
| W4OBU | 10 | 59 | — | — | Available |
| W4OBV | 9 | 61 | — | — | Available |
| W4OBW | 9 | 61 | 2020-05-04 | 2022-05-05 | Available |
| W4OBX | 9 | 63 | 2030-04-08 | — | Active (Vanity) |
| W4OBY | 9 | 65 | 2032-03-30 | — | Active (Vanity) |
| W4OBZ | 9 | 63 | 2030-05-19 | — | Active (Vanity) |
| W4OCA | 9 | 59 | 2026-12-18 | — | Active |
| W4OCB | 9 | 63 | 2027-03-05 | — | Active |
| W4OCC | 9 | 65 | 2034-10-27 | — | Active |
| W4OCD | 9 | 61 | 2030-10-27 | — | Active (Vanity) |
| W4OCE | 9 | 55 | 1998-04-12 | 2000-04-13 | Available |
| W4OCF | 9 | 63 | 2030-02-14 | — | Active (Vanity) |
| W4OCG | 8 | 63 | — | — | Available |
| W4OCH | 9 | 61 | 2007-11-10 | 2009-11-11 | Available |
| W4OCI | 10 | 57 | — | — | Available |
| W4OCJ | 10 | 67 | 2026-05-02 | — | Active |
| W4OCK | 9 | 63 | 2000-02-27 | 2002-02-28 | Available |
| W4OCL | 9 | 63 | 2021-03-27 | 2023-03-28 | Available |
| W4OCM | 8 | 61 | 2026-11-22 | — | Active (Vanity) |
| W4OCN | 10 | 59 | 2006-04-04 | 2008-04-05 | Available |
| W4OCO | 9 | 65 | 2020-04-21 | 2022-04-22 | Available |
| W4OCP | 9 | 65 | 2015-02-27 | 2017-02-28 | Available |
| W4OCQ | 9 | 67 | 2027-01-09 | — | Active |
| W4OCR | 10 | 61 | 2026-06-14 | — | Active (Vanity) |
| W4OCS | 10 | 59 | — | — | Available |
| W4OCT | 9 | 57 | 2034-10-07 | — | Active (Vanity) |
| W4OCU | 10 | 61 | 2015-01-13 | 2017-01-14 | Available |
| W4OCV | 9 | 63 | 1998-10-18 | 2000-10-19 | Available |
| W4OCW | 9 | 63 | 2027-12-08 | — | Active |
| W4OCX | 9 | 65 | 2001-08-27 | 2003-08-28 | Available |
| W4OCY | 9 | 67 | 1998-03-22 | 2000-03-23 | Available |
| W4OCZ | 9 | 65 | 2027-02-22 | — | Active (Vanity) |
| W4ODA | 9 | 55 | 2031-02-06 | — | Active (Vanity) |
| W4ODB | 9 | 59 | 2032-09-08 | — | Active (Vanity) |
| W4ODC | 9 | 61 | — | — | Available |
| W4ODD | 9 | 57 | 2028-04-28 | — | Active (Vanity) |
| W4ODE | 9 | 51 | 2000-10-30 | 2002-10-31 | Available |
| W4ODF | 9 | 59 | 2030-02-12 | — | Active (Vanity) |
| W4ODG | 8 | 59 | — | — | Available |
| W4ODH | 9 | 57 | 2027-04-11 | — | Active |
| W4ODI | 10 | 53 | — | — | Available |
| W4ODJ | 10 | 63 | — | — | Available |
| W4ODK | 9 | 59 | — | — | Available |
| W4ODL | 9 | 59 | 2003-03-29 | 2005-03-30 | Available |
| W4ODM | 8 | 57 | — | — | Available |
| W4ODN | 10 | 55 | 2032-05-10 | — | Active (Vanity) |
| W4ODO | 9 | 61 | 2004-03-22 | 2006-03-23 | Available |
| W4ODP | 9 | 61 | — | — | Available |