District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KM4SM | 8 | 51 | 2019-02-26 | 2021-02-27 | Available |
| KM4SN | 10 | 49 | 2019-03-09 | 2021-03-10 | Available |
| KM4SO | 9 | 55 | 2007-10-15 | 2009-10-16 | Available |
| KM4SP | 9 | 55 | 2000-03-06 | 2002-03-07 | Available |
| KM4SQ | 9 | 57 | 2020-04-28 | 2022-04-29 | Available |
| KM4SR | 10 | 51 | 2019-07-25 | 2021-07-26 | Available |
| KM4SS | 10 | 49 | 2028-09-07 | — | Active (Vanity) |
| KM4ST | 9 | 47 | 2030-03-03 | — | Active (Vanity) |
| KM4SU | 10 | 51 | — | — | Available |
| KM4SV | 9 | 53 | — | — | Available |
| KM4SW | 9 | 53 | 2025-03-31 | — | Active (Vanity) |
| KM4SX | 9 | 55 | 2031-05-12 | — | Active |
| KM4SY | 9 | 57 | 2032-11-03 | — | Active |
| KM4SZ | 9 | 55 | 2018-08-18 | 2020-08-19 | Available |
| KM4TA | 8 | 47 | — | — | Available |
| KM4TB | 8 | 51 | 2029-02-23 | — | Active |
| KM4TC | 8 | 53 | 2033-01-26 | — | Active |
| KM4TD | 8 | 49 | 2029-02-03 | — | Active |
| KM4TE | 8 | 43 | 2019-03-09 | 2021-03-10 | Available |
| KM4TF | 8 | 51 | 2033-06-03 | — | Active (Vanity) |
| KM4TG | 7 | 51 | 1999-05-30 | 2001-05-31 | Available |
| KM4TH | 8 | 49 | 2035-12-09 | — | Active (Vanity) |
| KM4TI | 9 | 45 | 2012-01-23 | 2014-01-24 | Available |
| KM4TJ | 9 | 55 | 2009-01-29 | 2011-01-30 | Available |
| KM4TK | 8 | 51 | 2001-06-26 | 2003-06-27 | Available |
| KM4TL | 8 | 51 | 2019-07-21 | 2021-07-22 | Available |
| KM4TM | 7 | 49 | 2029-05-12 | — | Active (Vanity) |
| KM4TN | 9 | 47 | 2009-04-09 | 2011-04-10 | Available |
| KM4TO | 8 | 53 | 1999-06-06 | 2001-06-07 | Available |
| KM4TP | 8 | 53 | 2035-09-16 | — | Active (Vanity) |
| KM4TQ | 8 | 55 | — | — | Available |
| KM4TR | 9 | 49 | 2029-04-06 | — | Active |
| KM4TS | 9 | 47 | 2029-06-12 | — | Active |
| KM4TT | 8 | 45 | 2029-05-26 | — | Active |
| KM4TU | 9 | 49 | 1997-11-19 | 1999-11-20 | Available |
| KM4TV | 8 | 51 | 2019-02-26 | 2021-02-27 | Available |
| KM4TW | 8 | 51 | 2029-05-25 | — | Active |
| KM4TX | 8 | 53 | 2020-08-10 | 2022-08-11 | Available |
| KM4TY | 8 | 55 | 2029-03-03 | — | Active |
| KM4TZ | 8 | 53 | — | — | Available |
| KM4UA | 9 | 51 | 2030-12-11 | — | Active |
| KM4UB | 9 | 55 | 1999-06-20 | 2001-06-21 | Available |
| KM4UC | 9 | 57 | 2029-02-26 | — | Active |
| KM4UD | 9 | 53 | 1999-07-18 | 2001-07-19 | Available |
| KM4UE | 9 | 47 | 2029-03-01 | — | Active |
| KM4UF | 9 | 55 | 2004-03-31 | 2006-04-01 | Available |
| KM4UG | 8 | 55 | — | — | Available |
| KM4UH | 9 | 53 | 2019-05-20 | 2021-05-21 | Available |
| KM4UI | 10 | 49 | 2021-07-23 | 2023-07-24 | Available |
| KM4UJ | 10 | 59 | — | — | Available |
| KM4UK | 9 | 55 | 2029-05-07 | — | Active |
| KM4UL | 9 | 55 | 2028-11-23 | — | Active |
| KM4UM | 8 | 53 | 2009-03-31 | 2011-04-01 | Available |
| KM4UN | 10 | 51 | 2029-06-15 | — | Active |
| KM4UO | 9 | 57 | 2009-06-07 | 2011-06-08 | Available |
| KM4UP | 9 | 57 | — | — | Available |
| KM4UQ | 9 | 59 | — | — | Available |
| KM4UR | 10 | 53 | 1999-07-03 | 2001-07-04 | Available |
| KM4US | 10 | 51 | 2019-06-11 | 2021-06-12 | Available |
| KM4UT | 9 | 49 | 2008-01-23 | 2010-01-24 | Available |
| KM4UU | 10 | 53 | 1999-04-08 | 2001-04-09 | Available |
| KM4UV | 9 | 55 | — | — | Available |
| KM4UW | 9 | 55 | — | — | Available |
| KM4UX | 9 | 57 | 2031-10-29 | — | Active |
| KM4UY | 9 | 59 | — | — | Available |
| KM4UZ | 9 | 57 | 2020-09-04 | 2022-09-05 | Available |
| KM4VA | 8 | 53 | 2034-12-06 | — | Active (Vanity) |
| KM4VB | 8 | 57 | 2004-01-06 | 2006-01-07 | Available |
| KM4VC | 8 | 59 | 2022-05-12 | 2024-05-13 | Available |
| KM4VD | 8 | 55 | — | — | Available |
| KM4VE | 8 | 49 | 1999-07-11 | 2001-07-12 | Available |
| KM4VF | 8 | 57 | 1999-07-18 | 2001-07-19 | Available |
| KM4VG | 7 | 57 | 2009-04-30 | 2011-05-01 | Available |
| KM4VH | 8 | 55 | 2000-06-13 | 2002-06-14 | Available |
| KM4VI | 9 | 51 | 2030-05-12 | — | Active (Vanity) |
| KM4VJ | 9 | 61 | 2020-08-20 | 2022-08-21 | Available |
| KM4VK | 8 | 57 | 2036-12-24 | — | Active |
| KM4VL | 8 | 57 | 2032-12-16 | — | Active |
| KM4VM | 7 | 55 | — | — | Available |
| KM4VN | 9 | 53 | 2034-05-18 | — | Active |
| KM4VO | 8 | 59 | 2030-09-20 | — | Active |
| KM4VP | 8 | 59 | 2034-03-15 | — | Active |
| KM4VQ | 8 | 61 | 1997-10-06 | 1999-10-07 | Available |
| KM4VR | 9 | 55 | 2029-07-15 | — | Active |
| KM4VS | 9 | 53 | — | — | Available |
| KM4VT | 8 | 51 | 2029-04-20 | — | Active |
| KM4VU | 9 | 55 | 2009-03-22 | 2011-03-23 | Available |
| KM4VV | 8 | 57 | 2030-12-07 | — | Active (Vanity) |
| KM4VW | 8 | 57 | — | — | Available |
| KM4VX | 8 | 59 | 2029-04-02 | — | Active |
| KM4VY | 8 | 61 | 2029-07-25 | — | Active |
| KM4VZ | 8 | 59 | — | — | Available |
| KM4WA | 8 | 53 | 2027-04-14 | — | Active (Vanity) |
| KM4WB | 8 | 57 | 2000-11-13 | 2002-11-14 | Available |
| KM4WC | 8 | 59 | 2007-09-07 | 2010-07-09 | Available |
| KM4WD | 8 | 55 | 2024-11-08 | 2026-11-09 | Available |
| KM4WE | 8 | 49 | 2030-03-07 | — | Active (Vanity) |
| KM4WF | 8 | 57 | 2030-03-03 | — | Active |
| KM4WG | 7 | 57 | — | — | Available |
| KM4WH | 8 | 55 | 2010-11-07 | 2012-11-08 | Available |