District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4ZBI | 11 | 51 | 1999-06-02 | 2001-06-03 | Available |
| N4ZBJ | 11 | 61 | 2028-10-26 | — | Active |
| N4ZBK | 10 | 57 | 2031-04-13 | — | Active (Vanity) |
| N4ZBL | 10 | 57 | 2030-05-22 | — | Active |
| N4ZBM | 9 | 55 | 2033-04-17 | — | Active |
| N4ZBN | 11 | 53 | 2012-05-02 | 2014-05-03 | Available |
| N4ZBO | 10 | 59 | 2030-05-25 | — | Active |
| N4ZBP | 10 | 59 | 2000-05-22 | 2002-05-23 | Available |
| N4ZBQ | 10 | 61 | 2030-05-22 | — | Active |
| N4ZBR | 11 | 55 | 2010-05-22 | 2012-05-23 | Available |
| N4ZBS | 11 | 53 | 2015-04-21 | 2017-04-22 | Available |
| N4ZBT | 10 | 51 | 2031-04-24 | — | Active |
| N4ZBU | 11 | 55 | 2003-05-04 | 2005-05-05 | Available |
| N4ZBV | 10 | 57 | 2021-04-02 | 2023-04-03 | Available |
| N4ZBW | 10 | 57 | 2012-06-02 | 2014-06-03 | Available |
| N4ZBX | 10 | 59 | 2010-06-13 | 2012-06-14 | Available |
| N4ZBY | 10 | 61 | — | — | Available |
| N4ZBZ | 10 | 59 | 2000-05-22 | 2002-05-23 | Available |
| N4ZCA | 10 | 55 | 2021-06-22 | 2023-06-23 | Available |
| N4ZCB | 10 | 59 | 2031-09-24 | — | Active |
| N4ZCC | 10 | 61 | 2030-05-22 | — | Active |
| N4ZCD | 10 | 57 | 2011-03-05 | 2013-03-06 | Available |
| N4ZCE | 10 | 51 | 2000-05-22 | 2002-05-23 | Available |
| N4ZCF | 10 | 59 | 2000-09-29 | 2002-09-30 | Available |
| N4ZCG | 9 | 59 | 2032-08-16 | — | Active |
| N4ZCH | 10 | 57 | 2034-06-15 | — | Active |
| N4ZCI | 11 | 53 | 2031-01-20 | — | Active |
| N4ZCJ | 11 | 63 | 2011-08-31 | 2013-09-01 | Available |
| N4ZCK | 10 | 59 | 2030-07-01 | — | Active |
| N4ZCL | 10 | 59 | 2029-07-26 | — | Active (Vanity) |
| N4ZCM | 9 | 57 | 2030-09-28 | — | Active |
| N4ZCN | 11 | 55 | 2000-05-22 | 2002-05-23 | Available |
| N4ZCO | 10 | 61 | 2032-10-06 | — | Active |
| N4ZCP | 10 | 61 | — | — | Available |
| N4ZCQ | 10 | 63 | 2001-04-24 | 2003-04-25 | Available |
| N4ZCR | 11 | 57 | 2000-05-22 | 2002-05-23 | Available |
| N4ZCS | 11 | 55 | 2031-05-02 | — | Active |
| N4ZCT | 10 | 53 | 2004-05-24 | 2006-05-25 | Available |
| N4ZCU | 11 | 57 | 2004-04-24 | 2006-04-25 | Available |
| N4ZCV | 10 | 59 | 2033-12-21 | — | Active |
| N4ZCW | 10 | 59 | — | — | Available |
| N4ZCX | 10 | 61 | 2031-04-29 | — | Active |
| N4ZCY | 10 | 63 | 2030-05-29 | — | Active |
| N4ZCZ | 10 | 61 | 2010-06-07 | 2012-06-08 | Available |
| N4ZDA | 10 | 51 | 2030-07-10 | — | Active |
| N4ZDB | 10 | 55 | — | — | Available |
| N4ZDC | 10 | 57 | 2034-02-07 | — | Active (Vanity) |
| N4ZDD | 10 | 53 | 2013-03-18 | 2015-03-19 | Available |
| N4ZDE | 10 | 47 | 2021-09-03 | 2023-09-04 | Available |
| N4ZDF | 10 | 55 | 2021-09-03 | 2023-09-04 | Available |
| N4ZDG | 9 | 55 | 2013-04-12 | 2015-04-13 | Available |
| N4ZDH | 10 | 53 | 2020-05-29 | 2022-05-30 | Available |
| N4ZDI | 11 | 49 | 2032-08-04 | — | Active (Vanity) |
| N4ZDJ | 11 | 59 | 2010-05-29 | 2012-05-30 | Available |
| N4ZDK | 10 | 55 | 2030-09-14 | — | Active |
| N4ZDL | 10 | 55 | 2030-05-29 | — | Active |
| N4ZDM | 9 | 53 | 2008-05-30 | 2010-05-31 | Available |
| N4ZDN | 11 | 51 | 2001-08-20 | 2003-08-21 | Available |
| N4ZDO | 10 | 57 | 2001-02-12 | 2003-02-13 | Available |
| N4ZDP | 10 | 57 | — | — | Available |
| N4ZDQ | 10 | 59 | 2000-05-29 | 2002-05-30 | Available |
| N4ZDR | 11 | 53 | 2030-05-29 | — | Active |
| N4ZDS | 11 | 51 | — | — | Available |
| N4ZDT | 10 | 49 | 2031-03-02 | — | Active |
| N4ZDU | 11 | 53 | 2020-11-06 | 2022-11-07 | Available |
| N4ZDV | 10 | 55 | 2002-11-03 | 2004-11-04 | Available |
| N4ZDW | 10 | 55 | 2000-05-29 | 2002-05-30 | Available |
| N4ZDX | 10 | 57 | 2032-12-29 | — | Active |
| N4ZDY | 10 | 59 | 2031-08-25 | — | Active |
| N4ZDZ | 10 | 57 | 2029-01-25 | — | Active |
| N4ZEA | 10 | 45 | 2000-07-17 | 2002-07-18 | Available |
| N4ZEB | 10 | 49 | 2032-06-02 | — | Active |
| N4ZEC | 10 | 51 | 2020-12-05 | 2022-12-06 | Available |
| N4ZED | 10 | 47 | 2027-12-18 | — | Active (Vanity) |
| N4ZEE | 10 | 41 | 2030-10-09 | — | Active |
| N4ZEF | 10 | 49 | 2000-05-29 | 2002-05-30 | Available |
| N4ZEG | 9 | 49 | 2000-05-29 | 2002-05-30 | Available |
| N4ZEH | 10 | 47 | 2000-05-29 | 2002-05-30 | Available |
| N4ZEI | 11 | 43 | 2000-05-29 | 2002-05-30 | Available |
| N4ZEJ | 11 | 53 | 2010-05-29 | 2012-05-30 | Available |
| N4ZEK | 10 | 49 | 2031-05-25 | — | Active (Vanity) |
| N4ZEL | 10 | 49 | 2010-05-29 | 2012-05-30 | Available |
| N4ZEM | 9 | 47 | 2010-05-31 | 2012-06-01 | Available |
| N4ZEN | 11 | 45 | 2030-05-29 | — | Active |
| N4ZEO | 10 | 51 | 2030-06-03 | — | Active |
| N4ZEP | 10 | 51 | 2030-03-14 | — | Active (Vanity) |
| N4ZEQ | 10 | 53 | 2032-12-07 | — | Active |
| N4ZER | 11 | 47 | 1999-07-09 | 2001-07-10 | Available |
| N4ZES | 11 | 45 | 2020-05-29 | 2022-05-30 | Available |
| N4ZET | 10 | 43 | 2020-05-29 | 2022-05-30 | Available |
| N4ZEU | 11 | 47 | 2031-11-19 | — | Active |
| N4ZEV | 10 | 49 | 2030-05-29 | — | Active |
| N4ZEW | 10 | 49 | 2025-02-07 | — | Active (Vanity) |
| N4ZEX | 10 | 51 | 2000-05-29 | 2002-05-30 | Available |
| N4ZEY | 10 | 53 | 2000-05-29 | 2002-05-30 | Available |
| N4ZEZ | 10 | 51 | 2002-03-31 | 2004-04-01 | Available |
| N4ZFA | 10 | 53 | 2030-06-19 | — | Active (Vanity) |
| N4ZFB | 10 | 57 | 2031-06-01 | — | Active |
| N4ZFC | 10 | 59 | 2015-11-29 | 2017-11-30 | Available |
| N4ZFD | 10 | 55 | 2030-05-29 | — | Active |