District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4IUB | 12 | 47 | — | — | Available |
| N4IUC | 12 | 49 | 1998-07-26 | 2000-07-27 | Available |
| N4IUD | 12 | 45 | — | — | Available |
| N4IUE | 12 | 39 | 1998-04-05 | 2000-04-06 | Available |
| N4IUF | 12 | 47 | 2028-03-05 | — | Active |
| N4IUG | 11 | 47 | — | — | Available |
| N4IUH | 12 | 45 | — | — | Available |
| N4IUI | 13 | 41 | 2014-07-29 | 2016-07-30 | Available |
| N4IUJ | 13 | 51 | 2031-11-05 | — | Active |
| N4IUK | 12 | 47 | 2018-08-03 | 2020-08-04 | Available |
| N4IUL | 12 | 47 | 2027-03-06 | — | Active |
| N4IUM | 11 | 45 | — | — | Available |
| N4IUN | 13 | 43 | — | — | Available |
| N4IUO | 12 | 49 | 2008-04-17 | 2010-04-18 | Available |
| N4IUP | 12 | 49 | 2008-08-18 | 2010-08-19 | Available |
| N4IUQ | 12 | 51 | — | — | Available |
| N4IUR | 13 | 45 | 1999-03-14 | 2001-03-15 | Available |
| N4IUS | 13 | 43 | 2000-07-15 | 2002-07-16 | Available |
| N4IUT | 12 | 41 | — | — | Available |
| N4IUU | 13 | 45 | 2028-07-29 | — | Active |
| N4IUV | 12 | 47 | 2033-10-26 | — | Active |
| N4IUW | 12 | 47 | 1997-12-22 | 1999-12-23 | Available |
| N4IUX | 12 | 49 | — | — | Available |
| N4IUY | 12 | 51 | 1999-10-28 | 2001-10-29 | Available |
| N4IUZ | 12 | 49 | 2027-11-06 | — | Active |
| N4IVA | 11 | 45 | 2018-01-06 | 2020-01-07 | Available |
| N4IVB | 11 | 49 | 2001-01-03 | 2003-01-04 | Available |
| N4IVC | 11 | 51 | — | — | Available |
| N4IVD | 11 | 47 | 2006-08-09 | 2008-08-10 | Available |
| N4IVE | 11 | 41 | 2035-08-15 | — | Active (Vanity) |
| N4IVF | 11 | 49 | 1998-10-04 | 2000-10-05 | Available |
| N4IVG | 10 | 49 | 2013-07-06 | 2015-07-07 | Available |
| N4IVH | 11 | 47 | 2023-07-06 | 2025-07-07 | Available |
| N4IVI | 12 | 43 | — | — | Available |
| N4IVJ | 12 | 53 | — | — | Available |
| N4IVK | 11 | 49 | 1999-01-03 | 2001-01-04 | Available |
| N4IVL | 11 | 49 | 2000-02-20 | 2002-02-21 | Available |
| N4IVM | 10 | 47 | 2022-06-30 | 2024-07-01 | Available |
| N4IVN | 12 | 45 | — | — | Available |
| N4IVO | 11 | 51 | — | — | Available |
| N4IVP | 11 | 51 | 2027-02-08 | — | Active (Vanity) |
| N4IVQ | 11 | 53 | — | — | Available |
| N4IVR | 12 | 47 | — | — | Available |
| N4IVS | 12 | 45 | 2002-10-29 | 2004-10-30 | Available |
| N4IVT | 11 | 43 | 2018-01-27 | 2020-01-28 | Available |
| N4IVU | 12 | 47 | 2028-06-14 | — | Active |
| N4IVV | 11 | 49 | 2034-10-21 | — | Active |
| N4IVW | 11 | 49 | 2031-01-19 | — | Active (Vanity) |
| N4IVX | 11 | 51 | — | — | Available |
| N4IVY | 11 | 53 | 2033-04-07 | — | Active (Vanity) |
| N4IVZ | 11 | 51 | — | — | Available |
| N4IWA | 11 | 45 | 2028-05-01 | — | Active |
| N4IWB | 11 | 49 | 2013-02-16 | 2015-02-17 | Available |
| N4IWC | 11 | 51 | 2008-08-03 | 2010-08-04 | Available |
| N4IWD | 11 | 47 | — | — | Available |
| N4IWE | 11 | 41 | 2018-05-20 | 2020-05-21 | Available |
| N4IWF | 11 | 49 | 2026-12-31 | — | Active (Vanity) |
| N4IWG | 10 | 49 | 1999-07-11 | 2001-07-12 | Available |
| N4IWH | 11 | 47 | 2033-02-23 | — | Active |
| N4IWI | 12 | 43 | 2030-01-02 | — | Active |
| N4IWJ | 12 | 53 | 2007-12-05 | 2009-12-06 | Available |
| N4IWK | 11 | 49 | 1998-11-06 | 2000-11-07 | Available |
| N4IWL | 11 | 49 | 1998-07-20 | 2000-07-21 | Available |
| N4IWM | 10 | 47 | — | — | Available |
| N4IWN | 12 | 45 | 2008-05-18 | 2010-05-19 | Available |
| N4IWO | 11 | 51 | — | — | Available |
| N4IWP | 11 | 51 | 2028-10-05 | — | Active |
| N4IWQ | 11 | 53 | 2004-02-01 | 2006-02-02 | Available |
| N4IWR | 12 | 47 | — | — | Available |
| N4IWS | 12 | 45 | — | — | Available |
| N4IWT | 11 | 43 | 2017-01-13 | 2019-01-14 | Available |
| N4IWU | 12 | 47 | 2015-03-10 | 2017-03-11 | Available |
| N4IWV | 11 | 49 | 1998-05-17 | 2000-05-18 | Available |
| N4IWW | 11 | 49 | 2031-07-02 | — | Active (Vanity) |
| N4IWX | 11 | 51 | — | — | Available |
| N4IWY | 11 | 53 | 2019-09-04 | 2021-09-05 | Available |
| N4IWZ | 11 | 51 | 2031-07-30 | — | Active |
| N4IXA | 11 | 47 | 2030-07-22 | — | Active |
| N4IXB | 11 | 51 | — | — | Available |
| N4IXC | 11 | 53 | 2003-06-01 | 2005-06-02 | Available |
| N4IXD | 11 | 49 | — | — | Available |
| N4IXE | 11 | 43 | 2007-01-17 | 2009-01-18 | Available |
| N4IXF | 11 | 51 | 2036-09-19 | — | Active |
| N4IXG | 10 | 51 | — | — | Available |
| N4IXH | 11 | 49 | 1998-05-13 | 2000-05-14 | Available |
| N4IXI | 12 | 45 | 1998-10-25 | 2000-10-26 | Available |
| N4IXJ | 12 | 55 | 2022-11-06 | 2024-11-07 | Available |
| N4IXK | 11 | 51 | 2004-03-15 | 2006-03-16 | Available |
| N4IXL | 11 | 51 | 2029-06-30 | — | Active (Vanity) |
| N4IXM | 10 | 49 | — | — | Available |
| N4IXN | 12 | 47 | — | — | Available |
| N4IXO | 11 | 53 | 2017-03-10 | 2019-03-11 | Available |
| N4IXP | 11 | 53 | 1998-07-26 | 2000-07-27 | Available |
| N4IXQ | 11 | 55 | 2034-07-29 | — | Active |
| N4IXR | 12 | 49 | 2012-01-21 | 2014-01-22 | Available |
| N4IXS | 12 | 47 | — | — | Available |
| N4IXT | 11 | 45 | 2031-03-08 | — | Active (Vanity) |
| N4IXU | 12 | 49 | 2007-05-21 | 2009-05-22 | Available |
| N4IXV | 11 | 51 | 2026-02-27 | — | Active |
| N4IXW | 11 | 51 | 1999-01-31 | 2001-02-01 | Available |