District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4IMJ | 11 | 51 | 2012-04-04 | 2014-04-05 | Available |
| N4IMK | 10 | 47 | 2028-01-24 | — | Active |
| N4IML | 10 | 47 | — | — | Available |
| N4IMM | 9 | 45 | 2019-10-14 | 2021-10-15 | Available |
| N4IMN | 11 | 43 | — | — | Available |
| N4IMO | 10 | 49 | 2029-02-01 | — | Active |
| N4IMP | 10 | 49 | — | — | Available |
| N4IMQ | 10 | 51 | — | — | Available |
| N4IMR | 11 | 45 | — | — | Available |
| N4IMS | 11 | 43 | 2014-03-01 | 2016-03-02 | Available |
| N4IMT | 10 | 41 | — | — | Available |
| N4IMU | 11 | 45 | — | — | Available |
| N4IMV | 10 | 47 | 2034-08-29 | — | Active (Vanity) |
| N4IMW | 10 | 47 | 1998-01-12 | 2000-01-13 | Available |
| N4IMX | 10 | 49 | 2023-09-24 | 2025-09-25 | Available |
| N4IMY | 10 | 51 | 2008-03-09 | 2010-03-10 | Available |
| N4IMZ | 10 | 49 | — | — | Available |
| N4INA | 12 | 41 | 2014-05-17 | 2016-05-18 | Available |
| N4INB | 12 | 45 | — | — | Available |
| N4INC | 12 | 47 | 2028-05-04 | — | Active (Vanity) |
| N4IND | 12 | 43 | 2036-03-07 | — | Active (Vanity) |
| N4INE | 12 | 37 | 2029-12-04 | — | Active (Vanity) |
| N4INF | 12 | 45 | — | — | Available |
| N4ING | 11 | 45 | 2030-01-24 | — | Active (Vanity) |
| N4INH | 12 | 43 | — | — | Available |
| N4INI | 13 | 39 | 2017-10-11 | 2019-10-12 | Available |
| N4INJ | 13 | 49 | 2025-03-31 | — | Active |
| N4INK | 12 | 45 | 2031-03-12 | — | Active (Vanity) |
| N4INL | 12 | 45 | — | — | Available |
| N4INM | 11 | 43 | 2017-08-26 | 2019-08-27 | Available |
| N4INN | 13 | 41 | 2036-02-13 | — | Active (Vanity) |
| N4INO | 12 | 47 | 2007-04-10 | 2009-04-11 | Available |
| N4INP | 12 | 47 | 2027-12-19 | — | Active |
| N4INQ | 12 | 49 | 2018-05-20 | 2020-05-21 | Available |
| N4INR | 13 | 43 | 2026-11-26 | — | Active |
| N4INS | 13 | 41 | 2034-05-31 | — | Active |
| N4INT | 12 | 39 | 2020-03-25 | 2022-03-26 | Available |
| N4INU | 13 | 43 | 2008-08-13 | 2010-08-14 | Available |
| N4INV | 12 | 45 | 2008-10-28 | 2010-10-29 | Available |
| N4INW | 12 | 45 | — | — | Available |
| N4INX | 12 | 47 | 1997-09-15 | 1999-09-16 | Available |
| N4INY | 12 | 49 | 2007-10-27 | 2009-10-28 | Available |
| N4INZ | 12 | 47 | — | — | Available |
| N4IOA | 11 | 47 | 2018-02-25 | 2020-02-26 | Available |
| N4IOB | 11 | 51 | 2027-06-23 | — | Active |
| N4IOC | 11 | 53 | — | — | Available |
| N4IOD | 11 | 49 | 2035-02-11 | — | Active |
| N4IOE | 11 | 43 | — | — | Available |
| N4IOF | 11 | 51 | 2027-06-06 | — | Active (Vanity) |
| N4IOG | 10 | 51 | 2028-04-24 | — | Active |
| N4IOH | 11 | 49 | 2029-05-18 | — | Active |
| N4IOI | 12 | 45 | 2036-05-10 | — | Active (Vanity) |
| N4IOJ | 12 | 55 | — | — | Available |
| N4IOK | 11 | 51 | 2027-10-10 | — | Active (Vanity) |
| N4IOL | 11 | 51 | — | — | Available |
| N4IOM | 10 | 49 | 2035-06-12 | — | Active |
| N4ION | 12 | 47 | 2025-10-23 | — | Active |
| N4IOO | 11 | 53 | 2002-09-10 | 2004-09-11 | Available |
| N4IOP | 11 | 53 | — | — | Available |
| N4IOQ | 11 | 55 | 2020-11-13 | 2022-11-14 | Available |
| N4IOR | 12 | 49 | 2027-05-06 | — | Active |
| N4IOS | 12 | 47 | 2020-12-11 | 2022-12-12 | Available |
| N4IOT | 11 | 45 | 2017-09-19 | 2019-09-20 | Available |
| N4IOU | 12 | 49 | 2018-09-24 | 2020-09-25 | Available |
| N4IOV | 11 | 51 | — | — | Available |
| N4IOW | 11 | 51 | 2020-09-01 | 2022-09-02 | Available |
| N4IOX | 11 | 53 | 2001-11-26 | 2003-11-27 | Available |
| N4IOY | 11 | 55 | — | — | Available |
| N4IOZ | 11 | 53 | 2033-01-05 | — | Active |
| N4IPA | 11 | 47 | 2026-12-30 | — | Active (Vanity) |
| N4IPB | 11 | 51 | 1998-07-05 | 2000-07-06 | Available |
| N4IPC | 11 | 53 | 2015-11-28 | 2017-11-29 | Available |
| N4IPD | 11 | 49 | 2036-07-15 | — | Active (Vanity) |
| N4IPE | 11 | 43 | — | — | Available |
| N4IPF | 11 | 51 | 2028-09-23 | — | Active |
| N4IPG | 10 | 51 | — | — | Available |
| N4IPH | 11 | 49 | 2032-06-16 | — | Active |
| N4IPI | 12 | 45 | — | — | Available |
| N4IPJ | 12 | 55 | 2018-05-15 | 2020-05-16 | Available |
| N4IPK | 11 | 51 | — | — | Available |
| N4IPL | 11 | 51 | — | — | Available |
| N4IPM | 10 | 49 | 2015-04-25 | 2017-04-26 | Available |
| N4IPN | 12 | 47 | 2036-05-27 | — | Active (Vanity) |
| N4IPO | 11 | 53 | 1998-01-14 | 2000-01-15 | Available |
| N4IPP | 11 | 53 | — | — | Available |
| N4IPQ | 11 | 55 | 1998-05-31 | 2000-06-01 | Available |
| N4IPR | 12 | 49 | — | — | Available |
| N4IPS | 12 | 47 | — | — | Available |
| N4IPT | 11 | 45 | — | — | Available |
| N4IPU | 12 | 49 | 2023-02-19 | 2025-02-20 | Available |
| N4IPV | 11 | 51 | 2018-01-13 | 2020-01-14 | Available |
| N4IPW | 11 | 51 | 1999-02-07 | 2001-02-08 | Available |
| N4IPX | 11 | 53 | 2020-04-27 | 2022-04-28 | Available |
| N4IPY | 11 | 55 | 1998-11-15 | 2000-11-16 | Available |
| N4IPZ | 11 | 53 | 1997-12-08 | 1999-12-09 | Available |
| N4IQA | 11 | 49 | 2028-02-12 | — | Active (Vanity) |
| N4IQB | 11 | 53 | — | — | Available |
| N4IQC | 11 | 55 | 2028-02-08 | — | Active |
| N4IQD | 11 | 51 | 2030-04-03 | — | Active |
| N4IQE | 11 | 45 | 2007-11-28 | 2009-11-29 | Available |