Callsign blocks:- OU-OW OZ 5P-5Q (OY Faroes) (OX XP Greenland). ISO 3166 code:- DEN.EU Timezone:- UTC +1 (daylight savings time applies) Amateur Allocations are as follows:- OX = Greenland (GRL.NA) OX5 = U.S. personnel in Greenland OY = Faroe Islands (FRO.EU) OZ = Denmark XP = Greenland (GRL.NA)