District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4OGJ | 10 | 61 | 2026-03-18 | — | Active |
| N4OGK | 9 | 57 | 2036-03-20 | — | Active |
| N4OGL | 9 | 57 | 2027-05-12 | — | Active |
| N4OGM | 8 | 55 | 2009-11-07 | 2011-11-08 | Available |
| N4OGN | 10 | 53 | 2012-06-16 | 2014-06-17 | Available |
| N4OGO | 9 | 59 | 2036-06-02 | — | Active |
| N4OGP | 9 | 59 | 2029-04-27 | — | Active |
| N4OGQ | 9 | 61 | 2035-11-28 | — | Active |
| N4OGR | 10 | 55 | 2026-07-30 | — | Active |
| N4OGS | 10 | 53 | 2012-12-29 | 2014-12-30 | Available |
| N4OGT | 9 | 51 | 2006-03-20 | 2008-03-21 | Available |
| N4OGU | 10 | 55 | — | — | Available |
| N4OGV | 9 | 57 | 2006-03-20 | 2008-03-21 | Available |
| N4OGW | 9 | 57 | 2027-04-25 | — | Active |
| N4OGX | 9 | 59 | — | — | Available |
| N4OGY | 9 | 61 | 2033-01-19 | — | Active |
| N4OGZ | 9 | 59 | 2031-06-29 | — | Active |
| N4OHA | 10 | 51 | 2022-07-21 | 2024-07-22 | Available |
| N4OHB | 10 | 55 | 2028-04-29 | — | Active |
| N4OHC | 10 | 57 | 2016-04-05 | 2018-04-06 | Available |
| N4OHD | 10 | 53 | 1998-08-13 | 2000-08-14 | Available |
| N4OHE | 10 | 47 | 2027-04-30 | — | Active |
| N4OHF | 10 | 55 | 2026-05-09 | — | Active |
| N4OHG | 9 | 55 | 2010-06-12 | 2012-06-13 | Available |
| N4OHH | 10 | 53 | 2010-11-06 | 2012-11-07 | Available |
| N4OHI | 11 | 49 | 2035-01-14 | — | Active (Vanity) |
| N4OHJ | 11 | 59 | 2028-01-20 | — | Active |
| N4OHK | 10 | 55 | 2026-02-23 | 2028-02-24 | Canceled (grace period) |
| N4OHL | 10 | 55 | 2016-04-15 | 2018-04-16 | Available |
| N4OHM | 9 | 53 | 2026-03-27 | — | Active |
| N4OHN | 11 | 51 | 2007-01-10 | 2009-01-11 | Available |
| N4OHO | 10 | 57 | 2034-03-22 | — | Active |
| N4OHP | 10 | 57 | 2029-05-19 | — | Active |
| N4OHQ | 10 | 59 | — | — | Available |
| N4OHR | 11 | 53 | 2006-04-22 | 2008-04-23 | Available |
| N4OHS | 11 | 51 | 2027-01-27 | — | Active (Vanity) |
| N4OHT | 10 | 49 | — | — | Available |
| N4OHU | 11 | 53 | — | — | Available |
| N4OHV | 10 | 55 | — | — | Available |
| N4OHW | 10 | 55 | — | — | Available |
| N4OHX | 10 | 57 | 2033-02-28 | — | Active (Vanity) |
| N4OHY | 10 | 59 | 1997-11-19 | 1999-11-20 | Available |
| N4OHZ | 10 | 57 | — | — | Available |
| N4OIA | 11 | 47 | 2034-01-04 | — | Active |
| N4OIB | 11 | 51 | 2031-02-27 | — | Active (Vanity) |
| N4OIC | 11 | 53 | 2036-08-01 | — | Active |
| N4OID | 11 | 49 | 2016-07-22 | 2018-07-23 | Available |
| N4OIE | 11 | 43 | 2000-03-20 | 2002-03-21 | Available |
| N4OIF | 11 | 51 | 2026-03-25 | — | Active (Vanity) |
| N4OIG | 10 | 51 | 2006-03-21 | 2008-03-22 | Available |
| N4OIH | 11 | 49 | 1999-11-18 | 2001-11-19 | Available |
| N4OII | 12 | 45 | 2021-10-16 | 2023-10-17 | Available |
| N4OIJ | 12 | 55 | 2021-08-27 | 2023-08-28 | Available |
| N4OIK | 11 | 51 | 2006-03-21 | 2008-03-22 | Available |
| N4OIL | 11 | 51 | 2020-07-07 | 2022-07-08 | Available |
| N4OIM | 10 | 49 | 2000-03-20 | 2002-03-21 | Available |
| N4OIN | 12 | 47 | 1999-02-28 | 2001-03-01 | Available |
| N4OIO | 11 | 53 | 2026-06-28 | — | Active |
| N4OIP | 11 | 53 | 2006-04-01 | 2008-04-02 | Available |
| N4OIQ | 11 | 55 | — | — | Available |
| N4OIR | 12 | 49 | — | — | Available |
| N4OIS | 12 | 47 | 2023-02-23 | 2025-02-24 | Available |
| N4OIT | 11 | 45 | 2035-08-27 | — | Active |
| N4OIU | 12 | 49 | 2011-03-28 | 2013-03-29 | Available |
| N4OIV | 11 | 51 | 2022-04-21 | 2024-04-22 | Available |
| N4OIW | 11 | 51 | — | — | Available |
| N4OIX | 11 | 53 | — | — | Available |
| N4OIY | 11 | 55 | 2036-10-15 | — | Active |
| N4OIZ | 11 | 53 | 2006-02-22 | 2008-02-23 | Available |
| N4OJA | 11 | 57 | — | — | Available |
| N4OJB | 11 | 61 | 2006-03-21 | 2008-03-22 | Available |
| N4OJC | 11 | 63 | 2006-04-04 | 2008-04-05 | Available |
| N4OJD | 11 | 59 | 2028-09-08 | — | Active (Vanity) |
| N4OJE | 11 | 53 | 2032-04-21 | — | Active |
| N4OJF | 11 | 61 | — | — | Available |
| N4OJG | 10 | 61 | — | — | Available |
| N4OJH | 11 | 59 | 2036-04-16 | — | Active |
| N4OJI | 12 | 55 | 2026-05-11 | — | Active |
| N4OJJ | 12 | 65 | 2005-04-06 | 2007-04-07 | Available |
| N4OJK | 11 | 61 | 2011-01-05 | 2013-01-06 | Available |
| N4OJL | 11 | 61 | 2026-04-01 | — | Active |
| N4OJM | 10 | 59 | 1998-11-15 | 2000-11-16 | Available |
| N4OJN | 12 | 57 | 2036-05-03 | — | Active |
| N4OJO | 11 | 63 | — | — | Available |
| N4OJP | 11 | 63 | — | — | Available |
| N4OJQ | 11 | 65 | 1998-03-24 | 2000-03-25 | Available |
| N4OJR | 12 | 59 | — | — | Available |
| N4OJS | 12 | 57 | 2027-02-20 | — | Active |
| N4OJT | 11 | 55 | 2036-05-10 | — | Active (Vanity) |
| N4OJU | 12 | 59 | 2023-02-02 | 2025-02-03 | Available |
| N4OJV | 11 | 61 | — | — | Available |
| N4OJW | 11 | 61 | — | — | Available |
| N4OJX | 11 | 63 | 2005-09-06 | 2007-09-07 | Available |
| N4OJY | 11 | 65 | 1998-10-27 | 2000-10-28 | Available |
| N4OJZ | 11 | 63 | — | — | Available |
| N4OKA | 10 | 53 | 2004-03-22 | 2006-03-23 | Available |
| N4OKB | 10 | 57 | 2002-10-20 | 2004-10-21 | Available |
| N4OKC | 10 | 59 | 2028-10-07 | — | Active (Vanity) |
| N4OKD | 10 | 55 | 2003-08-31 | 2005-09-01 | Available |
| N4OKE | 10 | 49 | 2032-08-22 | — | Active |