Author: Alan, 5B4AHJ
The entity of Johnston Island has been on the DXCC list since 1945. QSOs count for Johnston Island from 1945-11-15.
The DXCC entity of Johnston Island consists only of Johnston Atoll, aka Kalama Atoll, there are no satellite islands.
The IOTA reference for Johnston Island is OC-023.
The KE6 prefix was used for Johnston Island up to 1947. From mid-1947, the KJ6 prefix was used for Johnston Island, with WJ6 for novice stations. These prefixes continued to be used until the US callsign revision of 1978-03-24, from which date the prefix became KH3, with AH3, NH3 & WH3 also being used.
See Ranking in "Most Wanted" league.
The Johnston Island military facility has been decommissioned and closed, the last flight out was on 2004-06-15. The atoll is now administered by the US Fish and Wildlife Service. Entry is now extremely difficult, permits being largely restricted to scientists and educators.
Johnston Island is a whitelisted DXCC entity, currently for QSOs on or after 1978-03-24. The following table lists stations known to have been QRV from Johnston Island Island, and which are thought to be good for DXCC credit.
The callsigns below are the only ones in the whitelist period that Club Log will map to Johnston Island, and only for QSO dates within the exception date range. These callsigns have been taken from QSL cards and other sources.
Callsigns in the whitelist period that are not listed below, or QSOs outside the exception date range, will be not be mapped to Johnston Island, but will be mapped as INVALID.
Please advise any missing Johnston Island callsigns for QSOs on or after 1978-03-24, to Alan, 5B4AHJ, email address on QRZ.COM, or via the Help Desk.
Call | Date/Note (follow callsign links to see exact dates, QSLs and additional notes |
| KJ6BZ | 1950s to 2003 - March (but whitelisted from 1978-03-24) |
| KJ6BV | 1958 to 1994 (but whitelisted from 1978-03-24) |
| WB7OOV/KJ6 | 1978 - April. QSL required. |
| WB7OOV/KH3 | 1978 - May/June. |
| WH3AAA | 1978 - November (or earlier) to 1981 - March (or later). QSL required. |
| KH3AA | 1979 - January to 1981 - April |
| KA6HIQ/KH3 | 1980 - January to October |
| K6LPL/KH3 | 1980 - April |
| WA4AGU/KH3 | 1980 - June? to October |
| WH3AAB | 1980 - October to 1981 - May |
| KH3AB | 1980 - November to 1981 - September |
| KH6GB/KH3 | 1980 - November |
| AH6CH/KH3 | 1981 - January to July |
| NH6D/KH3 | 1981 - March |
| AH3AA | 1981 - April to 1982 - January |
| WB0MKR/KH3 | 1981 - December to 1982 - May |
| AH3AC | 1982 - June to September |
| K8CRM/KH3 | 1982 to November, 1990 |
| 1983 - November | |
| KB1HM/KJ6 | 1984 - April |
| KH3AA | 1985 - March to April |
| 1985 - July | |
| W6DMJ/KH3 | 1985 - July QSL required |
| K1AT/KJ6 | 1986 - February/March (24 hour operation) QSL required |
| 1986 - April | |
| KB1HM/KH3 | 1986 - August |
| WH6R/KH3 | 1986 - August QSL required |
| KN4BPL/KH3 | 1986 - December to 1987 - March |
| KL7LF/KH3 | 1986 - December to 1988 - May |
| WH6BOQ/KH3 | 1987 - unknown dates. QSL required |
| WB4KMV/KH3 | 1987 - February to August |
| WB5ZQU/KH3 | 1987 - May |
| WY5L/KH3 | 1987 - May to 1988 - November |
| NH6D/KH3 | 1987 - June |
| WH6BLQ/KH3 | 1987 - August, November/December |
| KB5ENR/KH3 | 1987 - November to 1990 - March |
| AH3B | 1988 - October |
| KN0E/KH3 | 1989 - March to 1990 - February |
| KN0E/NH3 | 1989 - May, December |
| WB8ZYC/KH3, KA3HMS/KH3, NH6D/KH3 | 1989 - August |
| WH3AAD | 1989 - September to 1990 - April QSL required |
| KE2AA/KH3 | 1989 - November QSL required |
| AH3AD | 1989 - December QSL required |
| KC6FSL/KH3 | 1989 - December |
| AH3C | 1990 - Most of the year except when QRV as AH3C/KH5J in April |
| KE2AA/KH3 | 1990 - January, April, June QSL required |
| KH3AC | 1990 - April to 2002. |
| WH3AAF | 1990 - May to 1993 - July |
| WH3AAG | 1990 - May to ? (licence expired 2000-05-29) |
| KA3HMS/KH3 | 1990 - July |
| KB7HM/KH3 | 1990 - August |
| 1990 - November to 1992 - December and then sporadically up to 2000 | |
| WH6CJQ/KH3 | 1991 - January/February QSL required |
| NH6YG/KH3 | 1991 - February to May |
| KA3HMS/KH3 | 1991 - February/March, September |
| AH3AD | 1991 - February to August. QSL required |
| KH3AF | 1991 - March to 1995 - December |
| AH3B | 1991 - November to 1992 - January |
| KH3AG | 1991 - ? to 1992 - February |
| KH3/WM4M | 1991 - April |
| KB6VUP/KH3 | 1991 - July QSL required |
| K5RB/KH3 | 1991 - November |
| KA3HMS/KH3 | 1992 - April, September |
| WA1GIR/KH3 | 1992 - June to 1993 - June |
| KH3/WM4M | 1992 - August |
| NH6D/KH3 | 1993 - September |
| AH9AC/AH3, AH9AC/KH3 | 1993 - September to 1994 - August |
| NH6HX/KH3 | 1993 - June to December |
| NH6D/KH3 | 1993 - July |
| KA3HMS/KH3 | 1994 - June, July/August |
| WA1GIR/KH3 | 1995 - January |
| KA3HMS/KH3 | 1995 - July/August |
| KA3HMS/KH3 | 1996 - June |
| KH3/AB4MK | 1996 - June to August, October |
| W5RXP/KH3 | 1997 - January, October |
| KA3HMS/KH3 | 1997 - March |
| 1997 - May/June (possibly later). QSL required | |
| KH3/W4FJE | 1997 - October/November QSL required |
| AD6BQ/KH3 | 1998 - January (possibly earlier) to March |
| N4DAZ/KH3 | 1998 - March |
| KK5ZX/KH3 | 1998 - March to April |
| KH6HE/KH3 | 1998 - August to November? |
| W5RXP/KH3 | 1999 - June/July |
| NH6D/KH3 | 1999 - July to September |
| KH7V/KH3 | 1999 - September |
| KH7V/KH3 | 2000 - November |
| K3J | 2001- September |
| KH6GMP/KH3 | 2002 - December |
| AH3D | 2003 - January to February |
| KH3/KT6E | 2003 - March to July |
| Call | More research/info needed - currently not whitelisted. |
| W3UR/KH3 | W3UR checking |
| KX6RTG/KH3 | 2012 DXMB #1276 |
| W7KFI/KH3 | 2012 BIARC Newsletter December, 2011 |
| AH6IO/KH3 | 1994 (1993?) - May DXNS #1611 |
Related article
K8CX's Hamgallery Welcome to Johntson Island "The Biggest Little Base in the Air Force"
Acknowledgements
CQ Magazine various issues
DX News Sheet published by Geoff Watts/RSGB various issues
K8CX's Hamgallery Johnston Island, Oceania KH3, KJ6
RSGB IOTA Activations credited for OC-023
Wikipedia Johnston Atoll