District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4OCN | 11 | 55 | 2026-03-28 | — | Active |
| N4OCO | 10 | 61 | 2036-04-01 | — | Active |
| N4OCP | 10 | 61 | — | — | Available |
| N4OCQ | 10 | 63 | — | — | Available |
| N4OCR | 11 | 57 | — | — | Available |
| N4OCS | 11 | 55 | 2008-12-15 | 2010-12-16 | Available |
| N4OCT | 10 | 53 | 2021-05-07 | — | Active (Vanity) |
| N4OCU | 11 | 57 | 2001-06-25 | 2003-06-26 | Available |
| N4OCV | 10 | 59 | — | — | Available |
| N4OCW | 10 | 59 | 2030-08-19 | — | Active |
| N4OCX | 10 | 61 | 2016-02-21 | 2018-02-22 | Available |
| N4OCY | 10 | 63 | 1997-12-15 | 1999-12-16 | Available |
| N4OCZ | 10 | 61 | 2006-02-16 | 2008-02-17 | Available |
| N4ODA | 10 | 51 | 2034-04-17 | — | Active |
| N4ODB | 10 | 55 | 2030-08-25 | — | Active (Vanity) |
| N4ODC | 10 | 57 | 2026-10-11 | — | Active |
| N4ODD | 10 | 53 | 2026-07-08 | — | Active |
| N4ODE | 10 | 47 | 2006-03-14 | 2008-03-15 | Available |
| N4ODF | 10 | 55 | 2027-04-24 | — | Active (Vanity) |
| N4ODG | 9 | 55 | 2000-03-13 | 2002-03-14 | Available |
| N4ODH | 10 | 53 | 2006-04-10 | 2008-04-11 | Available |
| N4ODI | 11 | 49 | 2029-02-09 | — | Active (Vanity) |
| N4ODJ | 11 | 59 | 2008-12-02 | 2010-12-03 | Available |
| N4ODK | 10 | 55 | — | — | Available |
| N4ODL | 10 | 55 | — | — | Available |
| N4ODM | 9 | 53 | 2028-11-09 | — | Active |
| N4ODN | 11 | 51 | 2022-02-18 | 2024-02-19 | Available |
| N4ODO | 10 | 57 | 2000-05-08 | 2002-05-09 | Available |
| N4ODP | 10 | 57 | 1998-01-06 | 2000-01-07 | Available |
| N4ODQ | 10 | 59 | 2026-04-23 | — | Active |
| N4ODR | 11 | 53 | 2026-06-07 | — | Active |
| N4ODS | 11 | 51 | 2006-02-16 | 2008-02-17 | Available |
| N4ODT | 10 | 49 | 2018-02-19 | 2020-02-20 | Available |
| N4ODU | 11 | 53 | — | — | Available |
| N4ODV | 10 | 55 | — | — | Available |
| N4ODW | 10 | 55 | 2006-11-05 | 2008-11-06 | Available |
| N4ODX | 10 | 57 | — | — | Available |
| N4ODY | 10 | 59 | — | — | Available |
| N4ODZ | 10 | 57 | — | — | Available |
| N4OEA | 10 | 45 | — | — | Available |
| N4OEB | 10 | 49 | — | — | Available |
| N4OEC | 10 | 51 | 2006-03-01 | 2008-03-02 | Available |
| N4OED | 10 | 47 | 1999-04-25 | 2001-04-26 | Available |
| N4OEE | 10 | 41 | — | — | Available |
| N4OEF | 10 | 49 | 2017-02-07 | 2019-02-08 | Available |
| N4OEG | 9 | 49 | 2009-07-26 | 2011-07-27 | Available |
| N4OEH | 10 | 47 | 2001-04-02 | 2003-04-03 | Available |
| N4OEI | 11 | 43 | — | — | Available |
| N4OEJ | 11 | 53 | 2036-06-05 | — | Active |
| N4OEK | 10 | 49 | 2036-06-14 | — | Active |
| N4OEL | 10 | 49 | 2023-05-24 | 2025-05-25 | Available |
| N4OEM | 9 | 47 | 2032-07-01 | — | Active (Vanity) |
| N4OEN | 11 | 45 | 1999-03-28 | 2001-03-29 | Available |
| N4OEO | 10 | 51 | 2006-03-20 | 2008-03-21 | Available |
| N4OEP | 10 | 51 | 2001-12-17 | 2003-12-18 | Available |
| N4OEQ | 10 | 53 | — | — | Available |
| N4OER | 11 | 47 | 2006-11-14 | 2008-11-15 | Available |
| N4OES | 11 | 45 | 2031-08-30 | — | Active (Vanity) |
| N4OET | 10 | 43 | — | — | Available |
| N4OEU | 11 | 47 | 2006-03-19 | 2008-03-20 | Available |
| N4OEV | 10 | 49 | 2017-03-17 | 2019-03-18 | Available |
| N4OEW | 10 | 49 | 2006-05-02 | 2008-05-03 | Available |
| N4OEX | 10 | 51 | — | — | Available |
| N4OEY | 10 | 53 | 2007-03-24 | 2009-03-25 | Available |
| N4OEZ | 10 | 51 | 2027-08-26 | — | Active |
| N4OFA | 10 | 53 | 2036-04-04 | — | Active |
| N4OFB | 10 | 57 | — | — | Available |
| N4OFC | 10 | 59 | — | — | Available |
| N4OFD | 10 | 55 | — | — | Available |
| N4OFE | 10 | 49 | 2006-04-23 | 2008-04-24 | Available |
| N4OFF | 10 | 57 | 2030-03-19 | — | Active (Vanity) |
| N4OFG | 9 | 57 | 2023-03-05 | 2025-03-06 | Available |
| N4OFH | 10 | 55 | 2026-04-23 | — | Active |
| N4OFI | 11 | 51 | 2016-08-22 | 2018-08-23 | Available |
| N4OFJ | 11 | 61 | 2028-10-26 | — | Active |
| N4OFK | 10 | 57 | — | — | Available |
| N4OFL | 10 | 57 | 2034-12-11 | — | Active (Vanity) |
| N4OFM | 9 | 55 | 2003-04-26 | 2005-04-27 | Available |
| N4OFN | 11 | 53 | 2031-04-06 | — | Active (Vanity) |
| N4OFO | 10 | 59 | 2016-04-12 | 2018-04-13 | Available |
| N4OFP | 10 | 59 | — | — | Available |
| N4OFQ | 10 | 61 | — | — | Available |
| N4OFR | 11 | 55 | — | — | Available |
| N4OFS | 11 | 53 | 2011-06-11 | 2013-06-12 | Available |
| N4OFT | 10 | 51 | 2006-03-20 | 2008-03-21 | Available |
| N4OFU | 11 | 55 | 2006-03-21 | 2008-03-22 | Available |
| N4OFV | 10 | 57 | 2006-03-28 | 2008-03-29 | Available |
| N4OFW | 10 | 57 | — | — | Available |
| N4OFX | 10 | 59 | 2029-11-15 | — | Active (Vanity) |
| N4OFY | 10 | 61 | — | — | Available |
| N4OFZ | 10 | 59 | 2027-12-05 | — | Active |
| N4OGA | 9 | 53 | 2034-09-09 | — | Active |
| N4OGB | 9 | 57 | 2006-03-20 | 2008-03-21 | Available |
| N4OGC | 9 | 59 | 2006-09-12 | 2008-09-13 | Available |
| N4OGD | 9 | 55 | 2026-03-28 | — | Active |
| N4OGE | 9 | 49 | 2007-03-12 | 2009-03-13 | Available |
| N4OGF | 9 | 57 | 2028-12-10 | — | Active |
| N4OGG | 8 | 57 | — | — | Available |
| N4OGH | 9 | 55 | 2017-01-10 | 2019-01-11 | Available |
| N4OGI | 10 | 51 | 2029-02-11 | — | Active |