District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4KKJ | 11 | 59 | 2007-06-05 | 2009-06-06 | Available |
| N4KKK | 10 | 55 | 2029-11-28 | — | Active (Vanity) |
| N4KKL | 10 | 55 | 2006-11-01 | 2008-11-02 | Available |
| N4KKM | 9 | 53 | 2015-01-03 | 2017-01-04 | Available |
| N4KKN | 11 | 51 | — | — | Available |
| N4KKO | 10 | 57 | 2004-05-24 | 2006-05-25 | Available |
| N4KKP | 10 | 57 | — | — | Available |
| N4KKQ | 10 | 59 | 2034-07-07 | — | Active |
| N4KKR | 11 | 53 | — | — | Available |
| N4KKS | 11 | 51 | 2016-08-30 | 2018-08-31 | Available |
| N4KKT | 10 | 49 | 2035-03-16 | — | Active |
| N4KKU | 11 | 53 | 2036-01-23 | — | Active |
| N4KKV | 10 | 55 | 2031-04-30 | — | Active |
| N4KKW | 10 | 55 | 2016-03-01 | 2018-03-02 | Available |
| N4KKX | 10 | 57 | — | — | Available |
| N4KKY | 10 | 59 | 2033-02-07 | — | Active (Vanity) |
| N4KKZ | 10 | 57 | 2036-01-24 | — | Active |
| N4KLA | 10 | 51 | 2027-11-24 | — | Active |
| N4KLB | 10 | 55 | 2027-05-11 | — | Active (Vanity) |
| N4KLC | 10 | 57 | 2024-05-24 | 2026-05-25 | Available |
| N4KLD | 10 | 53 | 2036-07-14 | — | Active (Vanity) |
| N4KLE | 10 | 47 | — | — | Available |
| N4KLF | 10 | 55 | 2036-02-28 | — | Active (Vanity) |
| N4KLG | 9 | 55 | 2029-12-18 | — | Active (Vanity) |
| N4KLH | 10 | 53 | 2036-04-06 | — | Active |
| N4KLI | 11 | 49 | 2024-05-10 | 2026-05-11 | Available |
| N4KLJ | 11 | 59 | 2035-04-23 | — | Active |
| N4KLK | 10 | 55 | 2036-02-20 | — | Active (Vanity) |
| N4KLL | 10 | 55 | 1998-10-27 | 2000-10-28 | Available |
| N4KLM | 9 | 53 | 2024-02-03 | 2026-02-04 | Available |
| N4KLN | 11 | 51 | — | — | Available |
| N4KLO | 10 | 57 | 2014-10-06 | 2016-10-07 | Available |
| N4KLP | 10 | 57 | — | — | Available |
| N4KLQ | 10 | 59 | — | — | Available |
| N4KLR | 11 | 53 | 2034-05-31 | — | Active |
| N4KLS | 11 | 51 | 2028-05-06 | — | Active (Vanity) |
| N4KLT | 10 | 49 | 2027-12-08 | — | Active (Vanity) |
| N4KLU | 11 | 53 | 1999-01-31 | 2001-02-01 | Available |
| N4KLV | 10 | 55 | 2024-03-05 | 2026-03-06 | Available |
| N4KLW | 10 | 55 | 2028-05-05 | — | Active (Vanity) |
| N4KLX | 10 | 57 | 2029-04-24 | — | Active (Vanity) |
| N4KLY | 10 | 59 | 2034-05-24 | — | Active |
| N4KLZ | 10 | 57 | 2036-05-01 | — | Active (Vanity) |
| N4KMA | 9 | 49 | 2029-11-23 | — | Active (Vanity) |
| N4KMB | 9 | 53 | 2035-08-22 | — | Active (Vanity) |
| N4KMC | 9 | 55 | 2035-05-03 | — | Active |
| N4KMD | 9 | 51 | 2034-10-26 | — | Active (Vanity) |
| N4KME | 9 | 45 | 2033-04-11 | — | Active (Vanity) |
| N4KMF | 9 | 53 | — | — | Available |
| N4KMG | 8 | 53 | 2023-07-28 | 2025-07-29 | Available |
| N4KMH | 9 | 51 | 2022-02-11 | 2024-02-12 | Available |
| N4KMI | 10 | 47 | 2024-03-15 | 2026-03-16 | Available |
| N4KMJ | 10 | 57 | 2025-05-23 | — | Active (Vanity) |
| N4KMK | 9 | 53 | 2033-08-01 | — | Active (Vanity) |
| N4KML | 9 | 53 | 2032-08-30 | — | Active (Vanity) |
| N4KMM | 8 | 51 | 2019-11-30 | 2021-12-01 | Available |
| N4KMN | 10 | 49 | 2024-10-06 | 2026-10-07 | Available |
| N4KMO | 9 | 55 | — | — | Available |
| N4KMP | 9 | 55 | 2027-01-06 | — | Active |
| N4KMQ | 9 | 57 | 2004-03-15 | 2006-03-16 | Available |
| N4KMR | 10 | 51 | — | — | Available |
| N4KMS | 10 | 49 | 2014-04-12 | 2016-04-13 | Available |
| N4KMT | 9 | 47 | 2031-04-06 | — | Active (Vanity) |
| N4KMU | 10 | 51 | 2034-12-23 | — | Active |
| N4KMV | 9 | 53 | — | — | Available |
| N4KMW | 9 | 53 | 2001-11-12 | 2003-11-13 | Available |
| N4KMX | 9 | 55 | 2032-09-29 | — | Active |
| N4KMY | 9 | 57 | 2017-07-14 | 2019-07-15 | Available |
| N4KMZ | 9 | 55 | 2030-02-28 | — | Active (Vanity) |
| N4KNA | 11 | 47 | 2032-04-23 | — | Active (Vanity) |
| N4KNB | 11 | 51 | 2026-06-16 | — | Active |
| N4KNC | 11 | 53 | 2007-10-09 | 2009-10-10 | Available |
| N4KND | 11 | 49 | 2004-07-15 | 2006-07-16 | Available |
| N4KNE | 11 | 43 | 2004-07-20 | 2006-07-21 | Available |
| N4KNF | 11 | 51 | 2010-03-27 | 2012-03-28 | Available |
| N4KNG | 10 | 51 | 2029-06-07 | — | Active (Vanity) |
| N4KNH | 11 | 49 | — | — | Available |
| N4KNI | 12 | 45 | 2014-07-15 | 2016-07-16 | Available |
| N4KNJ | 12 | 55 | 2014-07-15 | 2016-07-16 | Available |
| N4KNK | 11 | 51 | — | — | Available |
| N4KNL | 11 | 51 | 2033-08-25 | — | Active |
| N4KNM | 10 | 49 | — | — | Available |
| N4KNN | 12 | 47 | 2034-08-17 | — | Active (Vanity) |
| N4KNO | 11 | 53 | 2014-05-31 | 2016-06-01 | Available |
| N4KNP | 11 | 53 | 2024-07-01 | 2026-07-02 | Available |
| N4KNQ | 11 | 55 | 2024-05-31 | 2026-06-01 | Available |
| N4KNR | 12 | 49 | 2025-05-19 | — | Active |
| N4KNS | 12 | 47 | 2006-04-08 | 2008-04-09 | Available |
| N4KNT | 11 | 45 | 2016-06-22 | 2018-06-23 | Available |
| N4KNU | 12 | 49 | — | — | Available |
| N4KNV | 11 | 51 | — | — | Available |
| N4KNW | 11 | 51 | 2032-05-12 | — | Active |
| N4KNX | 11 | 53 | 2030-12-30 | — | Active (Vanity) |
| N4KNY | 11 | 55 | — | — | Available |
| N4KNZ | 11 | 53 | 2028-10-27 | — | Active (Vanity) |
| N4KOA | 10 | 53 | 2034-03-01 | — | Active |
| N4KOB | 10 | 57 | 2024-03-05 | 2026-03-06 | Available |
| N4KOC | 10 | 59 | 2034-04-23 | — | Active (Vanity) |
| N4KOD | 10 | 55 | 2021-06-18 | 2023-06-19 | Available |
| N4KOE | 10 | 49 | — | — | Available |