District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| KB4KE | 9 | 51 | 2014-07-08 | 2016-07-09 | Available |
| KB4KF | 9 | 59 | 2030-11-06 | — | Active (Vanity) |
| KB4KG | 8 | 59 | 2027-03-21 | — | Active |
| KB4KH | 9 | 57 | 2015-08-17 | 2017-08-18 | Available |
| KB4KI | 10 | 53 | — | — | Available |
| KB4KJ | 10 | 63 | 1999-03-07 | 2001-03-08 | Available |
| KB4KK | 9 | 59 | 2030-06-20 | — | Active (Vanity) |
| KB4KL | 9 | 59 | 2034-01-25 | — | Active |
| KB4KM | 8 | 57 | 2031-09-03 | — | Active |
| KB4KN | 10 | 55 | 2036-02-01 | — | Active |
| KB4KO | 9 | 61 | 2008-06-19 | 2010-06-20 | Available |
| KB4KP | 9 | 61 | 2032-08-11 | — | Active |
| KB4KQ | 9 | 63 | — | — | Available |
| KB4KR | 10 | 57 | — | — | Available |
| KB4KS | 10 | 55 | — | — | Available |
| KB4KT | 9 | 53 | — | — | Available |
| KB4KU | 10 | 57 | 2031-01-22 | — | Active |
| KB4KV | 9 | 59 | 2028-08-20 | — | Active |
| KB4KW | 9 | 59 | 2035-01-31 | — | Active |
| KB4KX | 9 | 61 | — | — | Available |
| KB4KY | 9 | 63 | 2033-11-22 | — | Active (Vanity) |
| KB4KZ | 9 | 61 | 2031-07-27 | — | Active (Vanity) |
| KB4LA | 9 | 55 | 2029-07-12 | — | Active (Vanity) |
| KB4LB | 9 | 59 | 2034-05-21 | — | Active (Vanity) |
| KB4LC | 9 | 61 | 2032-05-06 | — | Active (Vanity) |
| KB4LD | 9 | 57 | 2029-07-19 | — | Active |
| KB4LE | 9 | 51 | — | — | Available |
| KB4LF | 9 | 59 | 2028-04-01 | — | Active |
| KB4LG | 8 | 59 | 1999-01-31 | 2001-02-01 | Available |
| KB4LH | 9 | 57 | — | — | Available |
| KB4LI | 10 | 53 | 2017-11-11 | 2019-11-12 | Available |
| KB4LJ | 10 | 63 | — | — | Available |
| KB4LK | 9 | 59 | 2008-03-05 | 2010-03-06 | Available |
| KB4LL | 9 | 59 | 2025-12-17 | — | Active |
| KB4LM | 8 | 57 | 2033-10-26 | — | Active |
| KB4LN | 10 | 55 | 2028-07-21 | — | Active |
| KB4LO | 9 | 61 | — | — | Available |
| KB4LP | 9 | 61 | 2014-10-18 | 2016-10-19 | Available |
| KB4LQ | 9 | 63 | — | — | Available |
| KB4LR | 10 | 57 | 1997-10-13 | 1999-10-14 | Available |
| KB4LS | 10 | 55 | 2033-06-02 | — | Active (Vanity) |
| KB4LT | 9 | 53 | 2025-09-10 | — | Active (Vanity) |
| KB4LU | 10 | 57 | 2008-07-02 | 2010-07-03 | Available |
| KB4LV | 9 | 59 | — | — | Available |
| KB4LW | 9 | 59 | 2034-11-11 | — | Active (Vanity) |
| KB4LX | 9 | 61 | 2028-09-22 | — | Active (Vanity) |
| KB4LY | 9 | 63 | 2034-10-04 | — | Active |
| KB4LZ | 9 | 61 | — | — | Available |
| KB4MA | 8 | 53 | — | — | Available |
| KB4MB | 8 | 57 | 2030-01-15 | — | Active (Vanity) |
| KB4MC | 8 | 59 | 2036-03-25 | — | Active (Vanity) |
| KB4MD | 8 | 55 | 2021-12-04 | 2023-12-05 | Available |
| KB4ME | 8 | 49 | — | — | Available |
| KB4MF | 8 | 57 | 2021-04-30 | 2023-05-01 | Available |
| KB4MG | 7 | 57 | 2034-08-05 | — | Active (Vanity) |
| KB4MH | 8 | 55 | 1998-07-19 | 2000-07-20 | Available |
| KB4MI | 9 | 51 | 2006-05-16 | 2008-05-17 | Available |
| KB4MJ | 9 | 61 | 1999-06-13 | 2001-06-14 | Available |
| KB4MK | 8 | 57 | 2023-09-17 | 2025-09-18 | Available |
| KB4ML | 8 | 57 | — | — | Available |
| KB4MM | 7 | 55 | 2027-04-14 | — | Active |
| KB4MN | 9 | 53 | 2028-08-21 | — | Active |
| KB4MO | 8 | 59 | 1999-03-07 | 2001-03-08 | Available |
| KB4MP | 8 | 59 | 2024-03-05 | 2026-03-06 | Available |
| KB4MQ | 8 | 61 | 2027-10-06 | — | Active |
| KB4MR | 9 | 55 | 2024-05-24 | 2026-05-25 | Available |
| KB4MS | 9 | 53 | 2032-03-07 | — | Active (Vanity) |
| KB4MT | 8 | 51 | 2003-04-06 | 2005-04-07 | Available |
| KB4MU | 9 | 55 | 2033-08-10 | — | Active (Vanity) |
| KB4MV | 8 | 57 | 2004-09-09 | 2006-09-10 | Available |
| KB4MW | 8 | 57 | 2036-11-27 | — | Active |
| KB4MX | 8 | 59 | — | — | Available |
| KB4MY | 8 | 61 | 1998-09-20 | 2000-09-21 | Available |
| KB4MZ | 8 | 59 | 2007-07-14 | 2009-07-15 | Available |
| KB4NA | 10 | 51 | 2034-01-04 | — | Active |
| KB4NB | 10 | 55 | — | — | Available |
| KB4NC | 10 | 57 | 2027-04-11 | — | Active (Vanity) |
| KB4ND | 10 | 53 | 2018-02-09 | 2020-02-10 | Available |
| KB4NE | 10 | 47 | — | — | Available |
| KB4NF | 10 | 55 | — | — | Available |
| KB4NG | 9 | 55 | — | — | Available |
| KB4NH | 10 | 53 | — | — | Available |
| KB4NI | 11 | 49 | 2028-10-27 | — | Active |
| KB4NJ | 11 | 59 | 1999-01-31 | 2001-02-01 | Available |
| KB4NK | 10 | 55 | 2023-06-22 | 2025-06-23 | Available |
| KB4NL | 10 | 55 | — | — | Available |
| KB4NM | 9 | 53 | — | — | Available |
| KB4NN | 11 | 51 | 2031-06-02 | — | Active (Vanity) |
| KB4NO | 10 | 57 | — | — | Available |
| KB4NP | 10 | 57 | — | — | Available |
| KB4NQ | 10 | 59 | — | — | Available |
| KB4NR | 11 | 53 | 2004-03-08 | 2006-03-09 | Available |
| KB4NS | 11 | 51 | 2029-05-12 | — | Active (Vanity) |
| KB4NT | 10 | 49 | — | — | Available |
| KB4NU | 11 | 53 | 2015-01-26 | 2017-01-27 | Available |
| KB4NV | 10 | 55 | 2018-11-19 | 2020-11-20 | Available |
| KB4NW | 10 | 55 | 2030-02-11 | — | Active (Vanity) |
| KB4NX | 10 | 57 | 2014-03-29 | 2016-03-30 | Available |
| KB4NY | 10 | 59 | — | — | Available |
| KB4NZ | 10 | 57 | 1998-03-29 | 2000-03-30 | Available |