Author: Alan, 5B4AHJ
Following American occupation of Okinawa and and the surrounding Ryukyu Islands from 1945-1952, which, in turn, was followed by US military control of the islands, Okinawa and the Ryukyu Islands were returned to Japanese administration on 1972-06-17. To celebrate the 50th anniversary of this event, stations QRV from the islands could append a three-letter island reference followed by the digits 50, throughout 2011. The appendices are tabulated below.
| Island | Appendix | IOTA |
| Okinawa | /OKA50 | AS-017 |
| Ie | /IEJ50 | AS-017 |
| Aguni | /AGJ50 | AS-017 |
| Kerama | /KJP50 |
AS-017 |
| Kume | /UEO50 |
AS-017 |
| Miyako | /MMY50 | AS-079 |
| Shimoji | /SHI50 |
AS-079 |
| Tarama | /TRA50 |
AS-079 |
| Ishigaki | /ISG50 | AS-024 |
| Yonaguni | /OGN50 | AS-024 |
| Hateruma | /HTR50 | AS-024 |
| Kitadaitou | /KTD50 | AS-047 |
| Minamidaitou | /MMD50 | AS-047 |
These five-character appendices are treated as prefixes by Club Log, for the period of the event..
Activity actually started on 2010-12-31.
Acknowledgements
DX News Letter (DXNL) #1709 2011-01-05
Wikipedia Okinawa Island
Wikipedia Ryukyu Islands