District 4
1x3 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| N4SRY | 12 | 53 | 2008-04-08 | 2010-04-09 | Available |
| N4SRZ | 12 | 51 | 2008-01-16 | 2010-01-17 | Available |
| N4SSA | 12 | 43 | 2031-02-24 | — | Active (Vanity) |
| N4SSB | 12 | 47 | 2033-08-08 | — | Active (Vanity) |
| N4SSC | 12 | 49 | 2033-09-29 | — | Active (Vanity) |
| N4SSD | 12 | 45 | 2033-08-03 | — | Active |
| N4SSE | 12 | 39 | 2033-11-06 | — | Active |
| N4SSF | 12 | 47 | 2034-07-09 | — | Active |
| N4SSG | 11 | 47 | 2031-08-31 | — | Active (Vanity) |
| N4SSH | 12 | 45 | 2029-06-07 | — | Active |
| N4SSI | 13 | 41 | 2035-07-14 | — | Active (Vanity) |
| N4SSJ | 13 | 51 | 1998-05-03 | 2000-05-04 | Available |
| N4SSK | 12 | 47 | 2031-05-07 | — | Active |
| N4SSL | 12 | 47 | 2031-11-16 | — | Active (Vanity) |
| N4SSM | 11 | 45 | 2028-04-16 | — | Active |
| N4SSN | 13 | 43 | 2026-02-07 | — | Active (Vanity) |
| N4SSO | 12 | 49 | 2028-01-08 | — | Active |
| N4SSP | 12 | 49 | 2008-06-30 | 2010-07-01 | Available |
| N4SSQ | 12 | 51 | 2032-06-14 | — | Active |
| N4SSR | 13 | 45 | 1998-05-03 | 2000-05-04 | Available |
| N4SSS | 13 | 43 | 2028-12-30 | — | Active |
| N4SST | 12 | 41 | 2036-06-03 | — | Active (Vanity) |
| N4SSU | 13 | 45 | 2021-07-23 | 2023-07-24 | Available |
| N4SSV | 12 | 47 | 2029-04-23 | — | Active |
| N4SSW | 12 | 47 | 2028-11-19 | — | Active |
| N4SSX | 12 | 49 | 2035-05-28 | — | Active (Vanity) |
| N4SSY | 12 | 51 | 2008-04-14 | 2010-04-15 | Available |
| N4SSZ | 12 | 49 | 1998-05-03 | 2000-05-04 | Available |
| N4STA | 11 | 41 | 2030-02-18 | — | Active |
| N4STB | 11 | 45 | 2020-06-19 | 2022-06-20 | Available |
| N4STC | 11 | 47 | 2023-06-28 | 2025-06-29 | Available |
| N4STD | 11 | 43 | — | — | Available |
| N4STE | 11 | 37 | 2018-04-20 | 2020-04-21 | Available |
| N4STF | 11 | 45 | 2030-10-24 | — | Active (Vanity) |
| N4STG | 10 | 45 | 2033-12-07 | — | Active (Vanity) |
| N4STH | 11 | 43 | 2031-05-14 | — | Active (Vanity) |
| N4STI | 12 | 39 | 2034-08-23 | — | Active (Vanity) |
| N4STJ | 12 | 49 | 2028-04-02 | — | Active |
| N4STK | 11 | 45 | 2024-03-29 | 2026-03-30 | Available |
| N4STL | 11 | 45 | 2024-11-23 | 2026-11-24 | Canceled (grace period) |
| N4STM | 10 | 43 | 2032-09-01 | — | Active |
| N4STN | 12 | 41 | 2035-01-28 | — | Active (Vanity) |
| N4STO | 11 | 47 | 2031-02-12 | — | Active (Vanity) |
| N4STP | 11 | 47 | 2034-11-23 | — | Active (Vanity) |
| N4STQ | 11 | 49 | 2028-02-25 | — | Active |
| N4STR | 12 | 43 | 2030-06-25 | — | Active (Vanity) |
| N4STS | 12 | 41 | 2034-04-23 | — | Active (Vanity) |
| N4STT | 11 | 39 | 2003-04-13 | 2005-04-14 | Available |
| N4STU | 12 | 43 | 2025-05-24 | — | Active (Vanity) |
| N4STV | 11 | 45 | 2032-04-12 | — | Active (Vanity) |
| N4STW | 11 | 45 | 2028-05-04 | — | Active |
| N4STX | 11 | 47 | 2036-05-30 | — | Active (Vanity) |
| N4STY | 11 | 49 | 2036-05-01 | — | Active (Vanity) |
| N4STZ | 11 | 47 | 2008-02-06 | 2010-02-07 | Available |
| N4SUA | 12 | 45 | 2024-03-05 | 2026-03-06 | Available |
| N4SUB | 12 | 49 | 2031-05-04 | — | Active |
| N4SUC | 12 | 51 | — | — | Available |
| N4SUD | 12 | 47 | 2024-05-24 | 2026-05-25 | Available |
| N4SUE | 12 | 41 | 2030-02-28 | — | Active (Vanity) |
| N4SUF | 12 | 49 | 1998-05-03 | 2000-05-04 | Available |
| N4SUG | 11 | 49 | 1998-05-03 | 2000-05-04 | Available |
| N4SUH | 12 | 47 | 1998-05-03 | 2000-05-04 | Available |
| N4SUI | 13 | 43 | 2020-05-01 | 2022-05-02 | Available |
| N4SUJ | 13 | 53 | 1998-05-10 | 2000-05-11 | Available |
| N4SUK | 12 | 49 | — | — | Available |
| N4SUL | 12 | 49 | 1998-05-10 | 2000-05-11 | Available |
| N4SUM | 11 | 47 | 2028-02-25 | — | Active |
| N4SUN | 13 | 45 | 2027-08-20 | — | Active |
| N4SUO | 12 | 51 | 2027-10-07 | — | Active |
| N4SUP | 12 | 51 | 2028-02-25 | — | Active |
| N4SUQ | 12 | 53 | — | — | Available |
| N4SUR | 13 | 47 | 2035-04-26 | — | Active (Vanity) |
| N4SUS | 13 | 45 | 1997-10-16 | 1999-10-17 | Available |
| N4SUT | 12 | 43 | 2018-03-12 | 2020-03-13 | Available |
| N4SUU | 13 | 47 | 1998-05-10 | 2000-05-11 | Available |
| N4SUV | 12 | 49 | 2014-10-30 | 2016-10-31 | Available |
| N4SUW | 12 | 49 | — | — | Available |
| N4SUX | 12 | 51 | — | — | Available |
| N4SUY | 12 | 53 | 2036-06-02 | — | Active (Vanity) |
| N4SUZ | 12 | 51 | 2028-03-17 | — | Active |
| N4SVA | 11 | 47 | 2028-02-06 | — | Active |
| N4SVB | 11 | 51 | 2028-01-23 | — | Active |
| N4SVC | 11 | 53 | 2030-11-06 | — | Active (Vanity) |
| N4SVD | 11 | 49 | 2031-12-10 | — | Active |
| N4SVE | 11 | 43 | — | — | Available |
| N4SVF | 11 | 51 | 1998-05-10 | 2000-05-11 | Available |
| N4SVG | 10 | 51 | 2028-03-05 | — | Active |
| N4SVH | 11 | 49 | 2008-01-21 | 2010-01-22 | Available |
| N4SVI | 12 | 45 | 2028-01-23 | — | Active |
| N4SVJ | 12 | 55 | 2018-04-14 | 2020-04-15 | Available |
| N4SVK | 11 | 51 | — | — | Available |
| N4SVL | 11 | 51 | — | — | Available |
| N4SVM | 10 | 49 | 1998-05-10 | 2000-05-11 | Available |
| N4SVN | 12 | 47 | 2010-12-11 | 2012-12-12 | Available |
| N4SVO | 11 | 53 | 2030-09-11 | — | Active |
| N4SVP | 11 | 53 | 2019-02-22 | 2021-02-23 | Available |
| N4SVQ | 11 | 55 | 1998-05-10 | 2000-05-11 | Available |
| N4SVR | 12 | 49 | 2028-02-05 | — | Active |
| N4SVS | 12 | 47 | 2008-01-23 | 2010-01-24 | Available |
| N4SVT | 11 | 45 | 2029-02-02 | — | Active |