District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| K4IPC | 10 | 57 | 2018-01-26 | 2020-01-27 | Available |
| K4IPD | 10 | 53 | 2016-06-20 | 2018-06-21 | Available |
| K4IPE | 10 | 47 | 2029-07-19 | — | Active (Vanity) |
| K4IPF | 10 | 55 | — | — | Available |
| K4IPG | 9 | 55 | 1999-12-16 | 2001-12-17 | Available |
| K4IPH | 10 | 53 | 2020-08-07 | 2022-08-08 | Available |
| K4IPI | 11 | 49 | — | — | Available |
| K4IPJ | 11 | 59 | 1998-08-30 | 2000-08-31 | Available |
| K4IPK | 10 | 55 | 2031-02-12 | — | Active (Vanity) |
| K4IPL | 10 | 55 | 2008-02-09 | 2010-02-10 | Available |
| K4IPM | 9 | 53 | 2026-12-09 | — | Active (Vanity) |
| K4IPN | 11 | 51 | 2008-03-17 | 2010-03-18 | Available |
| K4IPO | 10 | 57 | 2027-03-17 | — | Active (Vanity) |
| K4IPP | 10 | 57 | — | — | Available |
| K4IPQ | 10 | 59 | — | — | Available |
| K4IPR | 11 | 53 | — | — | Available |
| K4IPS | 11 | 51 | 2036-06-01 | — | Active (Vanity) |
| K4IPT | 10 | 49 | — | — | Available |
| K4IPU | 11 | 53 | — | — | Available |
| K4IPV | 10 | 55 | 2006-07-10 | 2008-07-11 | Available |
| K4IPW | 10 | 55 | — | — | Available |
| K4IPX | 10 | 57 | 2028-05-31 | — | Active (Vanity) |
| K4IPY | 10 | 59 | 2036-03-07 | — | Active (Vanity) |
| K4IPZ | 10 | 57 | — | — | Available |
| K4IQA | 10 | 53 | 2008-01-15 | 2010-01-16 | Available |
| K4IQB | 10 | 57 | 2017-08-14 | 2019-08-15 | Available |
| K4IQC | 10 | 59 | — | — | Available |
| K4IQD | 10 | 55 | 2029-11-14 | — | Active (Vanity) |
| K4IQE | 10 | 49 | — | — | Available |
| K4IQF | 10 | 57 | — | — | Available |
| K4IQG | 9 | 57 | — | — | Available |
| K4IQH | 10 | 55 | — | — | Available |
| K4IQI | 11 | 51 | — | — | Available |
| K4IQJ | 11 | 61 | 2036-04-05 | — | Active |
| K4IQK | 10 | 57 | 2012-04-07 | 2014-04-08 | Available |
| K4IQL | 10 | 57 | — | — | Available |
| K4IQM | 9 | 55 | 2006-12-23 | 2008-12-24 | Available |
| K4IQN | 11 | 53 | 2031-07-02 | — | Active (Vanity) |
| K4IQO | 10 | 59 | — | — | Available |
| K4IQP | 10 | 59 | 1998-02-16 | 2000-02-17 | Available |
| K4IQQ | 10 | 61 | 2035-01-10 | — | Active |
| K4IQR | 11 | 55 | 2026-03-19 | — | Active |
| K4IQS | 11 | 53 | — | — | Available |
| K4IQT | 10 | 51 | 2026-08-14 | — | Active |
| K4IQU | 11 | 55 | 2002-09-29 | 2004-09-30 | Available |
| K4IQV | 10 | 57 | 2025-03-02 | — | Active |
| K4IQW | 10 | 57 | 2027-12-08 | — | Active |
| K4IQX | 10 | 59 | 2026-04-19 | — | Active (Vanity) |
| K4IQY | 10 | 61 | — | — | Available |
| K4IQZ | 10 | 59 | 2017-08-22 | 2019-08-23 | Available |
| K4IRA | 11 | 47 | 2032-04-19 | — | Active (Vanity) |
| K4IRB | 11 | 51 | — | — | Available |
| K4IRC | 11 | 53 | 2036-09-12 | — | Active (Vanity) |
| K4IRD | 11 | 49 | 2027-07-25 | — | Active (Vanity) |
| K4IRE | 11 | 43 | 2034-05-24 | — | Active (Vanity) |
| K4IRF | 11 | 51 | — | — | Available |
| K4IRG | 10 | 51 | 2001-08-11 | 2003-08-12 | Available |
| K4IRH | 11 | 49 | 2022-02-04 | 2024-02-05 | Available |
| K4IRI | 12 | 45 | 2034-04-12 | — | Active (Vanity) |
| K4IRJ | 12 | 55 | 1997-10-16 | 1999-10-17 | Available |
| K4IRK | 11 | 51 | 2032-06-05 | — | Active (Vanity) |
| K4IRL | 11 | 51 | 2000-06-13 | 2002-06-14 | Available |
| K4IRM | 10 | 49 | — | — | Available |
| K4IRN | 12 | 47 | 2007-03-20 | 2009-03-21 | Available |
| K4IRO | 11 | 53 | 2033-07-18 | — | Active (Vanity) |
| K4IRP | 11 | 53 | 1999-01-31 | 2001-02-01 | Available |
| K4IRQ | 11 | 55 | 2027-11-09 | — | Active (Vanity) |
| K4IRR | 12 | 49 | — | — | Available |
| K4IRS | 12 | 47 | 2029-04-19 | — | Active (Vanity) |
| K4IRT | 11 | 45 | 2028-01-14 | — | Active (Vanity) |
| K4IRU | 12 | 49 | 2036-02-20 | — | Active (Vanity) |
| K4IRV | 11 | 51 | 2029-02-20 | — | Active (Vanity) |
| K4IRW | 11 | 51 | — | — | Available |
| K4IRX | 11 | 53 | 2035-12-20 | — | Active (Vanity) |
| K4IRY | 11 | 55 | 2034-01-13 | — | Active (Vanity) |
| K4IRZ | 11 | 53 | — | — | Available |
| K4ISA | 11 | 45 | 2029-06-07 | — | Active (Vanity) |
| K4ISB | 11 | 49 | 2025-07-31 | — | Active |
| K4ISC | 11 | 51 | — | — | Available |
| K4ISD | 11 | 47 | — | — | Available |
| K4ISE | 11 | 41 | — | — | Available |
| K4ISF | 11 | 49 | — | — | Pending Application |
| K4ISG | 10 | 49 | 2033-04-07 | — | Active (Vanity) |
| K4ISH | 11 | 47 | 2028-12-01 | — | Active (Vanity) |
| K4ISI | 12 | 43 | — | — | Available |
| K4ISJ | 12 | 53 | 2027-11-05 | — | Active |
| K4ISK | 11 | 49 | 2029-12-13 | — | Active (Vanity) |
| K4ISL | 11 | 49 | — | — | Available |
| K4ISM | 10 | 47 | 2005-03-02 | 2007-03-03 | Available |
| K4ISN | 12 | 45 | — | — | Available |
| K4ISO | 11 | 51 | 2035-10-23 | — | Active (Vanity) |
| K4ISP | 11 | 51 | 2024-03-19 | 2026-03-20 | Available |
| K4ISQ | 11 | 53 | — | — | Available |
| K4ISR | 12 | 47 | 2035-03-10 | — | Active (Vanity) |
| K4ISS | 12 | 45 | 2033-01-18 | — | Active (Vanity) |
| K4IST | 11 | 43 | — | — | Available |
| K4ISU | 12 | 47 | 2035-01-28 | — | Active (Vanity) |
| K4ISV | 11 | 49 | 2033-11-29 | — | Active |
| K4ISW | 11 | 49 | 2034-08-22 | — | Active |
| K4ISX | 11 | 51 | — | — | Available |