Callsign blocks:- JA-JS 7J-7N 8J-8N. ISO 3166 code:- JPN.AS Timezone:- (daylight savings time applies) Amateur Allocations are as follows:- JD1 = Minami Torishima, Ogasawara Is, Iwo Jima JR6 = Ryukyu Islands 8J1 = Antarctic bases (ATA.AN)