Additions and Amendments to Registration marks 1927-1939


Resolution 475 (Official Bulletin 15)

Country Prefix Notes
Great Britain & Northern IrelandG-
ChileCC-
MonacoCZ-
BelgiumOO-
NetherlandsPH-
SwedenSE-
British Colonies & ProtectoratesVP-, VQ- or VR-
IndiaVT-
LatviaYL-

Resolution 507 (Official Bulletin 17)

Country Prefix Notes
ColombiaHK-
PeruOB-
CuracaoPJ-
Netherlands East IndiesPK-
SurinamPZ-
PolandSP-
GreeceSV-
TurkeyTA-, TB- or TC-
LuxembourgUL-
AustraliaVH-
MexicoXA- or XB-
ChinaXT-
VenezuelaYV-
New ZealandZK-
Union of South AfricaZS-

Resolution 530 (Official Bulletin 18)

Country Prefix Notes
EgyptSU-
GreeceSX
TurkeyTC-

Resolution 572 (Official Bulletin 19)

Country Prefix Notes
CanadaCF-
PortugalCS-
FinlandOH-All combinations of three letters save those containing WW
DenmarkOY-
USSRRA- or RO-
Republic of PanamaRX-
LithuaniaRY-

Resolution 624 (Official Bulletin 20)

Country Prefix Notes
USAN-Plus any combination of four letters
CubaCL- or CM-
SpainEC-
EstoniaES-
HungaryHA-
IraqYI-
NorwayLN-All combinations of three letters except those containing Å, Æ or Ö

Resolution 681 (Official Bulletin 21)

Country Prefix Notes
Republic of EcuadorHC-
BrazilPP-
AlbaniaZA-
PersiaEP-
Saar TerritoryEZ-
New HebridesYJ-
RoumaniaYR-
YugoslaviaYT- or YU-(Yugoslavia to select one)

Resolution 744 (Official Bulletin 22)

Country Prefix Notes
YugoslaviaYU-

Resolution 809 (Official Bulletin 23)

Country Prefix Notes
GermanyD-Plus any combination of four letters
SwitzerlandHB-
LuxembourgLX-
Costa RicaTI-

Resolution 868 (Official Bulletin 24)

Country Prefix Notes
Dominican RepublicHI-
LithuaniaLY-

Resolution 941 (Official Bulletin 25)

Country Prefix Notes
Argentine RepublicLV-Any combination of three letters commencing A, B or C
AustriaOE-
NicaraguaYN-

Resolution 1019 (Official Bulletin 26)

Country Prefix Notes
ParaguayZP-
BurmaXY-