District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4ORX | 11 | 57 | 2016-05-29 | 2018-05-30 | Available |
| N4ORY | 11 | 59 | 2026-05-22 | — | Active |
| N4ORZ | 11 | 57 | 2013-03-16 | 2015-03-17 | Available |
| N4OSA | 11 | 49 | 2036-07-28 | — | Active (Vanity) |
| N4OSB | 11 | 53 | 2032-09-18 | — | Active |
| N4OSC | 11 | 55 | — | — | Available |
| N4OSD | 11 | 51 | 2027-12-31 | — | Active |
| N4OSE | 11 | 45 | 1999-09-24 | 2001-09-25 | Available |
| N4OSF | 11 | 53 | 2022-07-12 | 2024-07-13 | Available |
| N4OSG | 10 | 53 | 2027-02-21 | — | Active |
| N4OSH | 11 | 51 | — | — | Available |
| N4OSI | 12 | 47 | 2027-11-10 | — | Active |
| N4OSJ | 12 | 57 | 2035-03-30 | — | Active |
| N4OSK | 11 | 53 | 2031-02-02 | — | Active (Vanity) |
| N4OSL | 11 | 53 | 2006-05-29 | 2008-05-30 | Available |
| N4OSM | 10 | 51 | 2009-02-27 | 2011-02-28 | Available |
| N4OSN | 12 | 49 | 1998-01-07 | 2000-01-08 | Available |
| N4OSO | 11 | 55 | 2033-05-23 | — | Active (Vanity) |
| N4OSP | 11 | 55 | 2026-06-06 | — | Active |
| N4OSQ | 11 | 57 | 2036-07-31 | — | Active |
| N4OSR | 12 | 51 | — | — | Available |
| N4OSS | 12 | 49 | 2021-04-02 | 2023-04-03 | Available |
| N4OST | 11 | 47 | 2028-03-25 | — | Active |
| N4OSU | 12 | 51 | 2036-06-04 | — | Active |
| N4OSV | 11 | 53 | 2036-09-04 | — | Active |
| N4OSW | 11 | 53 | 2006-09-23 | 2008-09-24 | Available |
| N4OSX | 11 | 55 | 2035-03-18 | — | Active (Vanity) |
| N4OSY | 11 | 57 | 2016-09-26 | 2018-09-27 | Available |
| N4OSZ | 11 | 55 | — | — | Available |
| N4OTA | 10 | 47 | 2025-08-09 | — | Active |
| N4OTB | 10 | 51 | 2032-04-15 | — | Active (Vanity) |
| N4OTC | 10 | 53 | 2028-02-01 | — | Active (Vanity) |
| N4OTD | 10 | 49 | 2036-06-07 | — | Active |
| N4OTE | 10 | 43 | 2009-10-05 | 2011-10-06 | Available |
| N4OTF | 10 | 51 | 2006-09-16 | 2008-09-17 | Available |
| N4OTG | 9 | 51 | — | — | Available |
| N4OTH | 10 | 49 | 2017-04-24 | 2019-04-25 | Available |
| N4OTI | 11 | 45 | — | — | Available |
| N4OTJ | 11 | 55 | 2017-02-07 | 2019-02-08 | Available |
| N4OTK | 10 | 51 | — | — | Available |
| N4OTL | 10 | 51 | 2009-07-26 | 2011-07-27 | Available |
| N4OTM | 9 | 49 | 2026-06-04 | — | Active |
| N4OTN | 11 | 47 | — | — | Available |
| N4OTO | 10 | 53 | — | — | Available |
| N4OTP | 10 | 53 | 2028-02-13 | — | Active |
| N4OTQ | 10 | 55 | 2036-03-20 | — | Active |
| N4OTR | 11 | 49 | 2036-04-04 | — | Active |
| N4OTS | 11 | 47 | 2029-07-20 | — | Active |
| N4OTT | 10 | 45 | 2026-03-22 | — | Active |
| N4OTU | 11 | 49 | 1998-04-03 | 2000-04-04 | Available |
| N4OTV | 10 | 51 | 2036-06-04 | — | Active |
| N4OTW | 10 | 51 | 2031-06-24 | — | Active (Vanity) |
| N4OTX | 10 | 53 | 2028-09-18 | — | Active |
| N4OTY | 10 | 55 | 2013-11-18 | 2015-11-19 | Available |
| N4OTZ | 10 | 53 | 2014-03-01 | 2016-03-02 | Available |
| N4OUA | 11 | 51 | — | — | Available |
| N4OUB | 11 | 55 | 2006-09-24 | 2008-09-25 | Available |
| N4OUC | 11 | 57 | 2036-02-20 | — | Active (Vanity) |
| N4OUD | 11 | 53 | 2027-11-01 | — | Active |
| N4OUE | 11 | 47 | 2024-10-22 | 2026-10-23 | Available |
| N4OUF | 11 | 55 | — | — | Available |
| N4OUG | 10 | 55 | — | — | Available |
| N4OUH | 11 | 53 | 2026-06-14 | — | Active |
| N4OUI | 12 | 49 | — | — | Available |
| N4OUJ | 12 | 59 | — | — | Available |
| N4OUK | 11 | 55 | 2030-09-04 | — | Active (Vanity) |
| N4OUL | 11 | 55 | 2017-06-10 | 2019-06-11 | Available |
| N4OUM | 10 | 53 | 2018-03-19 | 2020-03-20 | Available |
| N4OUN | 12 | 51 | 2036-06-07 | — | Active |
| N4OUO | 11 | 57 | 1998-12-30 | 2000-12-31 | Available |
| N4OUP | 11 | 57 | 1999-04-28 | 2001-04-29 | Available |
| N4OUQ | 11 | 59 | 2034-12-06 | — | Active |
| N4OUR | 12 | 53 | 2034-12-06 | — | Active |
| N4OUS | 12 | 51 | 2002-07-28 | 2004-07-29 | Available |
| N4OUT | 11 | 49 | 2027-02-10 | — | Active (Vanity) |
| N4OUU | 12 | 53 | 2036-06-12 | — | Active |
| N4OUV | 11 | 55 | 2003-03-23 | 2005-03-24 | Available |
| N4OUW | 11 | 55 | 1998-05-10 | 2000-05-11 | Available |
| N4OUX | 11 | 57 | 2022-11-05 | 2024-11-06 | Available |
| N4OUY | 11 | 59 | 2027-06-07 | — | Active |
| N4OUZ | 11 | 57 | 2016-10-04 | 2018-10-05 | Available |
| N4OVA | 10 | 53 | 2026-08-14 | — | Active |
| N4OVB | 10 | 57 | — | — | Available |
| N4OVC | 10 | 59 | 2002-03-07 | 2004-03-08 | Available |
| N4OVD | 10 | 55 | — | — | Available |
| N4OVE | 10 | 49 | — | — | Available |
| N4OVF | 10 | 57 | — | — | Available |
| N4OVG | 9 | 57 | 2036-11-14 | — | Active |
| N4OVH | 10 | 55 | — | — | Available |
| N4OVI | 11 | 51 | 2032-08-04 | — | Active |
| N4OVJ | 11 | 61 | 2030-02-06 | — | Active |
| N4OVK | 10 | 57 | 2030-02-06 | — | Active |
| N4OVL | 10 | 57 | 2036-06-27 | — | Active |
| N4OVM | 9 | 55 | 2036-03-28 | — | Active |
| N4OVN | 11 | 53 | 2034-08-31 | — | Active (Vanity) |
| N4OVO | 10 | 59 | 2036-07-03 | — | Active |
| N4OVP | 10 | 59 | 2008-06-15 | 2010-06-16 | Available |
| N4OVQ | 10 | 61 | 2028-01-21 | — | Active |
| N4OVR | 11 | 55 | — | — | Available |
| N4OVS | 11 | 53 | 2016-06-28 | 2018-06-29 | Available |