District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4IIN | 13 | 39 | 2010-03-07 | 2012-03-08 | Available |
| N4IIO | 12 | 45 | 2011-11-05 | 2013-11-06 | Available |
| N4IIP | 12 | 45 | 2006-06-18 | 2008-06-19 | Available |
| N4IIQ | 12 | 47 | — | — | Available |
| N4IIR | 13 | 41 | 1998-02-16 | 2000-02-17 | Available |
| N4IIS | 13 | 39 | — | — | Available |
| N4IIT | 12 | 37 | 2026-03-24 | 2028-03-25 | Canceled (grace period) |
| N4IIU | 13 | 41 | 1998-10-18 | 2000-10-19 | Available |
| N4IIV | 12 | 43 | 2035-10-21 | — | Active |
| N4IIW | 12 | 43 | — | — | Available |
| N4IIX | 12 | 45 | — | — | Available |
| N4IIY | 12 | 47 | 2028-01-07 | — | Active |
| N4IIZ | 12 | 45 | — | — | Available |
| N4IJA | 12 | 49 | 2009-09-11 | 2011-09-12 | Available |
| N4IJB | 12 | 53 | 2031-01-01 | — | Active (Vanity) |
| N4IJC | 12 | 55 | 2007-09-15 | 2009-09-16 | Available |
| N4IJD | 12 | 51 | 2034-10-29 | — | Active (Vanity) |
| N4IJE | 12 | 45 | 2027-11-24 | — | Active |
| N4IJF | 12 | 53 | — | — | Available |
| N4IJG | 11 | 53 | 2017-12-09 | 2019-12-10 | Available |
| N4IJH | 12 | 51 | — | — | Available |
| N4IJI | 13 | 47 | 2007-12-01 | 2009-12-02 | Available |
| N4IJJ | 13 | 57 | 2028-03-04 | — | Active (Vanity) |
| N4IJK | 12 | 53 | 2030-08-21 | — | Active (Vanity) |
| N4IJL | 12 | 53 | 2036-09-11 | — | Active |
| N4IJM | 11 | 51 | 2034-04-05 | — | Active (Vanity) |
| N4IJN | 13 | 49 | 2032-03-07 | — | Active (Vanity) |
| N4IJO | 12 | 55 | 2027-08-21 | — | Active |
| N4IJP | 12 | 55 | — | — | Available |
| N4IJQ | 12 | 57 | 2007-09-26 | 2009-09-27 | Available |
| N4IJR | 13 | 51 | 2003-12-28 | 2005-12-29 | Available |
| N4IJS | 13 | 49 | 2030-07-17 | — | Active |
| N4IJT | 12 | 47 | 1997-09-15 | 1999-09-16 | Available |
| N4IJU | 13 | 51 | — | — | Available |
| N4IJV | 12 | 53 | 1997-09-08 | 1999-09-09 | Available |
| N4IJW | 12 | 53 | 2028-08-21 | — | Active (Vanity) |
| N4IJX | 12 | 55 | 2008-01-23 | 2010-01-24 | Available |
| N4IJY | 12 | 57 | — | — | Available |
| N4IJZ | 12 | 55 | — | — | Available |
| N4IKA | 11 | 45 | 2030-10-02 | — | Active |
| N4IKB | 11 | 49 | 2027-02-12 | — | Active |
| N4IKC | 11 | 51 | 2014-04-12 | 2016-04-13 | Available |
| N4IKD | 11 | 47 | 2007-12-18 | 2009-12-19 | Available |
| N4IKE | 11 | 41 | 2028-03-17 | — | Active |
| N4IKF | 11 | 49 | 2027-11-21 | — | Active |
| N4IKG | 10 | 49 | — | — | Available |
| N4IKH | 11 | 47 | 1998-02-09 | 2000-02-10 | Available |
| N4IKI | 12 | 43 | 2007-11-19 | 2009-11-20 | Available |
| N4IKJ | 12 | 53 | 2011-06-11 | 2013-06-12 | Available |
| N4IKK | 11 | 49 | 2035-12-05 | — | Active (Vanity) |
| N4IKL | 11 | 49 | 2007-06-24 | 2009-06-25 | Available |
| N4IKM | 10 | 47 | — | — | Available |
| N4IKN | 12 | 45 | 2018-07-28 | 2020-07-29 | Available |
| N4IKO | 11 | 51 | 2032-12-13 | — | Active (Vanity) |
| N4IKP | 11 | 51 | 1998-02-09 | 2000-02-10 | Available |
| N4IKQ | 11 | 53 | — | — | Available |
| N4IKR | 12 | 47 | — | — | Available |
| N4IKS | 12 | 45 | — | — | Available |
| N4IKT | 11 | 43 | — | — | Available |
| N4IKU | 12 | 47 | — | — | Available |
| N4IKV | 11 | 49 | 2000-09-19 | 2002-09-20 | Available |
| N4IKW | 11 | 49 | 1999-02-28 | 2001-03-01 | Available |
| N4IKX | 11 | 51 | 2008-10-28 | 2010-10-29 | Available |
| N4IKY | 11 | 53 | — | — | Available |
| N4IKZ | 11 | 51 | 2005-07-19 | 2007-07-20 | Available |
| N4ILA | 11 | 45 | 2027-10-24 | — | Active |
| N4ILB | 11 | 49 | 2027-11-20 | — | Active |
| N4ILC | 11 | 51 | 2024-03-22 | 2026-03-23 | Available |
| N4ILD | 11 | 47 | — | — | Available |
| N4ILE | 11 | 41 | 2028-01-29 | — | Active |
| N4ILF | 11 | 49 | 2017-12-13 | 2019-12-14 | Available |
| N4ILG | 10 | 49 | 2029-07-13 | — | Active |
| N4ILH | 11 | 47 | 2028-11-08 | — | Active |
| N4ILI | 12 | 43 | 2032-02-25 | — | Active |
| N4ILJ | 12 | 53 | 2012-11-19 | 2014-11-20 | Available |
| N4ILK | 11 | 49 | 2016-01-16 | 2018-01-17 | Available |
| N4ILL | 11 | 49 | 2007-11-24 | 2009-11-25 | Available |
| N4ILM | 10 | 47 | 2029-03-25 | — | Active (Vanity) |
| N4ILN | 12 | 45 | 2017-01-29 | 2019-01-30 | Available |
| N4ILO | 11 | 51 | 1998-04-26 | 2000-04-27 | Available |
| N4ILP | 11 | 51 | — | — | Available |
| N4ILQ | 11 | 53 | 2035-08-17 | — | Active |
| N4ILR | 12 | 47 | 2036-08-14 | — | Active (Vanity) |
| N4ILS | 12 | 45 | 2030-09-09 | — | Active (Vanity) |
| N4ILT | 11 | 43 | 2001-01-22 | 2003-01-23 | Available |
| N4ILU | 12 | 47 | — | — | Available |
| N4ILV | 11 | 49 | 2022-09-05 | 2024-09-06 | Available |
| N4ILW | 11 | 49 | — | — | Available |
| N4ILX | 11 | 51 | — | — | Available |
| N4ILY | 11 | 53 | — | — | Available |
| N4ILZ | 11 | 51 | — | — | Available |
| N4IMA | 10 | 43 | 2011-06-22 | 2013-06-23 | Available |
| N4IMB | 10 | 47 | 2035-06-14 | — | Active (Vanity) |
| N4IMC | 10 | 49 | 2028-07-22 | — | Active |
| N4IMD | 10 | 45 | 2033-12-19 | — | Active |
| N4IME | 10 | 39 | 1998-03-29 | 2000-03-30 | Available |
| N4IMF | 10 | 47 | 2024-06-22 | 2026-06-23 | Available |
| N4IMG | 9 | 47 | — | — | Available |
| N4IMH | 10 | 45 | 2027-07-09 | — | Active |
| N4IMI | 11 | 41 | 2015-11-30 | 2017-12-01 | Available |