District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4UIG | 11 | 47 | 2008-07-16 | 2010-07-17 | Available |
| N4UIH | 12 | 45 | 1998-11-15 | 2000-11-16 | Available |
| N4UII | 13 | 41 | 2009-08-28 | 2011-08-29 | Available |
| N4UIJ | 13 | 51 | 1998-11-22 | 2000-11-23 | Available |
| N4UIK | 12 | 47 | 1998-11-22 | 2000-11-23 | Available |
| N4UIL | 12 | 47 | 1998-11-22 | 2000-11-23 | Available |
| N4UIM | 11 | 45 | 2007-10-09 | 2009-10-10 | Available |
| N4UIN | 13 | 43 | 2018-11-24 | 2020-11-25 | Available |
| N4UIO | 12 | 49 | 2019-11-02 | 2021-11-03 | Available |
| N4UIP | 12 | 49 | — | — | Available |
| N4UIQ | 12 | 51 | 2021-03-19 | 2023-03-20 | Available |
| N4UIR | 13 | 45 | 2009-11-22 | 2011-11-23 | Available |
| N4UIS | 13 | 43 | 2009-04-23 | 2011-04-24 | Available |
| N4UIT | 12 | 41 | 2010-05-29 | 2012-05-30 | Available |
| N4UIU | 13 | 45 | 2008-07-28 | 2010-07-29 | Available |
| N4UIV | 12 | 47 | 2028-12-31 | — | Active |
| N4UIW | 12 | 47 | 2028-09-08 | — | Active |
| N4UIX | 12 | 49 | 1998-11-22 | 2000-11-23 | Available |
| N4UIY | 12 | 51 | — | — | Available |
| N4UIZ | 12 | 49 | 2008-08-03 | 2010-08-04 | Available |
| N4UJA | 12 | 53 | 2028-04-06 | — | Active (Vanity) |
| N4UJB | 12 | 57 | 2015-06-12 | 2017-06-13 | Available |
| N4UJC | 12 | 59 | 2012-08-13 | 2014-08-14 | Available |
| N4UJD | 12 | 55 | — | — | Pending Application |
| N4UJE | 12 | 49 | 2003-06-22 | 2005-06-23 | Available |
| N4UJF | 12 | 57 | 2007-05-01 | 2009-05-02 | Available |
| N4UJG | 11 | 57 | 1998-12-15 | 2000-12-16 | Available |
| N4UJH | 12 | 55 | 2008-08-04 | 2010-08-05 | Available |
| N4UJI | 13 | 51 | 2028-08-22 | — | Active |
| N4UJJ | 13 | 61 | — | — | Available |
| N4UJK | 12 | 57 | 2021-12-10 | 2023-12-11 | Available |
| N4UJL | 12 | 57 | 2028-10-22 | — | Active |
| N4UJM | 11 | 55 | 2029-05-18 | — | Active |
| N4UJN | 13 | 53 | — | — | Available |
| N4UJO | 12 | 59 | 2028-01-20 | — | Active |
| N4UJP | 12 | 59 | 2011-03-09 | 2013-03-10 | Available |
| N4UJQ | 12 | 61 | 2028-03-03 | — | Active |
| N4UJR | 13 | 55 | — | — | Available |
| N4UJS | 13 | 53 | 2003-03-29 | 2005-03-30 | Available |
| N4UJT | 12 | 51 | 2021-07-03 | 2023-07-04 | Available |
| N4UJU | 13 | 55 | 2031-10-10 | — | Active |
| N4UJV | 12 | 57 | — | — | Available |
| N4UJW | 12 | 57 | 2030-11-27 | — | Active |
| N4UJX | 12 | 59 | 2020-01-14 | 2022-01-15 | Available |
| N4UJY | 12 | 61 | — | — | Available |
| N4UJZ | 12 | 59 | 2029-09-25 | — | Active |
| N4UKA | 11 | 49 | 2013-04-30 | 2015-05-01 | Available |
| N4UKB | 11 | 53 | 2002-01-28 | 2004-01-29 | Available |
| N4UKC | 11 | 55 | 2028-09-29 | — | Active (Vanity) |
| N4UKD | 11 | 51 | 1998-11-29 | 2000-11-30 | Available |
| N4UKE | 11 | 45 | 2028-09-21 | — | Active |
| N4UKF | 11 | 53 | — | — | Available |
| N4UKG | 10 | 53 | — | — | Available |
| N4UKH | 11 | 51 | 2008-11-16 | 2010-11-17 | Available |
| N4UKI | 12 | 47 | 2034-02-06 | — | Active (Vanity) |
| N4UKJ | 12 | 57 | 1998-11-29 | 2000-11-30 | Available |
| N4UKK | 11 | 53 | 2028-06-01 | — | Active |
| N4UKL | 11 | 53 | 1998-11-29 | 2000-11-30 | Available |
| N4UKM | 10 | 51 | 2033-08-10 | — | Active |
| N4UKN | 12 | 49 | 2000-08-07 | 2002-08-08 | Available |
| N4UKO | 11 | 55 | 2003-09-03 | 2005-09-04 | Available |
| N4UKP | 11 | 55 | 2008-10-16 | 2010-10-17 | Available |
| N4UKQ | 11 | 57 | 1998-11-29 | 2000-11-30 | Available |
| N4UKR | 12 | 51 | 2035-02-15 | — | Active (Vanity) |
| N4UKS | 12 | 49 | 2029-05-07 | — | Active |
| N4UKT | 11 | 47 | 2030-10-12 | — | Active |
| N4UKU | 12 | 51 | — | — | Available |
| N4UKV | 11 | 53 | 2021-12-17 | 2023-12-18 | Available |
| N4UKW | 11 | 53 | 2028-11-24 | — | Active |
| N4UKX | 11 | 55 | — | — | Available |
| N4UKY | 11 | 57 | 2029-11-29 | — | Active |
| N4UKZ | 11 | 55 | 1997-10-15 | 1999-10-16 | Available |
| N4ULA | 11 | 49 | 2031-03-23 | — | Active |
| N4ULB | 11 | 53 | 2003-10-05 | 2005-10-06 | Available |
| N4ULC | 11 | 55 | 2029-02-10 | — | Active |
| N4ULD | 11 | 51 | 2019-11-18 | 2021-11-19 | Available |
| N4ULE | 11 | 45 | 2028-08-18 | — | Active |
| N4ULF | 11 | 53 | 2028-10-20 | — | Active |
| N4ULG | 10 | 53 | 2018-08-03 | 2020-08-04 | Available |
| N4ULH | 11 | 51 | 2004-06-19 | 2006-06-20 | Available |
| N4ULI | 12 | 47 | 2035-09-13 | — | Active (Vanity) |
| N4ULJ | 12 | 57 | 2029-06-08 | — | Active |
| N4ULK | 11 | 53 | 1998-11-29 | 2000-11-30 | Available |
| N4ULL | 11 | 53 | 2032-12-31 | — | Active |
| N4ULM | 10 | 51 | 2028-08-06 | — | Active |
| N4ULN | 12 | 49 | 2028-04-01 | — | Active |
| N4ULO | 11 | 55 | 2028-11-10 | — | Active |
| N4ULP | 11 | 55 | 2032-10-04 | — | Active |
| N4ULQ | 11 | 57 | — | — | Available |
| N4ULR | 12 | 51 | 2009-09-19 | 2011-09-20 | Available |
| N4ULS | 12 | 49 | 2028-09-22 | — | Active |
| N4ULT | 11 | 47 | 1998-12-06 | 2000-12-07 | Available |
| N4ULU | 12 | 51 | 1998-12-09 | 2000-12-10 | Available |
| N4ULV | 11 | 53 | — | — | Available |
| N4ULW | 11 | 53 | — | — | Available |
| N4ULX | 11 | 55 | 2028-12-01 | — | Active |
| N4ULY | 11 | 57 | — | — | Available |
| N4ULZ | 11 | 55 | 2008-08-17 | 2010-08-18 | Available |
| N4UMA | 10 | 47 | 2018-09-01 | 2020-09-02 | Available |
| N4UMB | 10 | 51 | 2032-09-29 | — | Active |