Callsign blocks:- J4 SV-SZ. ISO 3166 code:- GRC.EU Timezone:- (daylight savings time applies) Amateur Allocations are as follows:- SV1 = Athens SV2 = Northern - Macedonia, Salonika etc SV3 = Peloponesos SV4 = Central SV5 = Dodecanese inc Rhodes SV6 = Epirus SV7 = North - Thraki SV8 = Grecian Islands SV9 = Crete SV0 = Visitor SY = Mount Athos