Live registry

Country & issuing-authority codes

The authoritative source for the codes used in every OSID. Stewards maintain these tables; additions are logged. Current nations use ISO 3166; defunct entities use withdrawn ISO codes or OSC's X-prefix namespace.

Country codesCurrency codesRevenue subclassesPrinting methods
CodeEntityStatusNotes
USUnited StatesCurrent · ISO
GBUnited Kingdom of Great BritainCurrent · ISO
CACanadaCurrent · ISO
DEGermanyCurrent · ISO
FRFranceCurrent · ISO
JPJapanCurrent · ISO
AUAustraliaCurrent · ISO
NZNew ZealandCurrent · ISO
INIndiaCurrent · ISO
BRBrazilCurrent · ISO
MXMexicoCurrent · ISO
ITItalyCurrent · ISO
ESSpainCurrent · ISO
PTPortugalCurrent · ISO
NLNetherlandsCurrent · ISO
BEBelgiumCurrent · ISO
CHSwitzerlandCurrent · ISO
ATAustriaCurrent · ISO
SESwedenCurrent · ISO
NONorwayCurrent · ISO
DKDenmarkCurrent · ISO
FIFinlandCurrent · ISO
ISIcelandCurrent · ISO
IEIrelandCurrent · ISO
GRGreeceCurrent · ISO
PLPolandCurrent · ISO
RURussian FederationCurrent · ISO
CNChinaCurrent · ISO
KRRepublic of KoreaCurrent · ISO
ILIsraelCurrent · ISO
TRTürkiyeCurrent · ISO
ZASouth AfricaCurrent · ISO
EGEgyptCurrent · ISO
ARArgentinaCurrent · ISO
CLChileCurrent · ISO
THThailandCurrent · ISO
VNVietnamCurrent · ISO
IDIndonesiaCurrent · ISO
MYMalaysiaCurrent · ISO
PHPhilippinesCurrent · ISO
SGSingaporeCurrent · ISO
HKHong KongCurrent · ISO
GUGuamTerritory · ISOUS territory
VIUS Virgin IslandsTerritory · ISO
PRPuerto RicoTerritory · ISOUS commonwealth
FOFaroe IslandsTerritory · ISODanish territory with independent postal authority
GIGibraltarTerritory · ISOBritish Overseas Territory
JEJerseyTerritory · ISOBritish Crown Dependency
GGGuernseyTerritory · ISOBritish Crown Dependency
IMIsle of ManTerritory · ISOBritish Crown Dependency
SUSoviet Union (USSR)Defunct · ISO-3Dissolved 1991
DDEast Germany (DDR)Defunct · ISO-3Reunified 1990
CSCzechoslovakiaDefunct · ISO-3Dissolved 1993
YUYugoslaviaDefunct · ISO-3Dissolved 1992–2006
RHRhodesiaDefunct · ISO-3Became Zimbabwe 1980
VDNorth VietnamDefunct · ISO-3Reunified 1976; use for pre-reunification issues
XCConfederate States of AmericaX-prefix · OSCNever assigned an ISO code
XZCanal ZoneX-prefix · OSCAvoids collision with CZ
XVSouth VietnamX-prefix · OSCAvoids collision with VN
XUUnited Nations (all offices)X-prefix · OSCIssuing office in data record
XRRyukyu IslandsX-prefix · OSCUS-administered 1945–1972
XKKosovoX-prefix · OSCPartially recognised; ISO XK is user-assigned
XBBavariaX-prefix · OSCPre-unification German state
XPPrussiaX-prefix · OSCPre-unification German state
XSSaxonyX-prefix · OSCPre-unification German state
XWWürttembergX-prefix · OSCPre-unification German state
XNNorth German ConfederationX-prefix · OSC1868–1871
XHAustro-Hungarian EmpireX-prefix · OSCDistinct from modern AT or HU
XOOttoman EmpireX-prefix · OSCDistinct from modern Turkey (TR)
XIBritish Mandate PalestineX-prefix · OSCDistinct from modern Israel (IL)
XFBiafraX-prefix · OSCBreakaway state 1967–1970
XTTanganyikaX-prefix · OSCPre-Tanzania; distinct from TZ
XASouth Arabia FederationX-prefix · OSCPre-Yemen entity
XGTuscanyX-prefix · OSCPre-unification Italian state
XJTwo SiciliesX-prefix · OSCPre-unification Italian state
XLPapal StatesX-prefix · OSCPre-unification Italian state
XMModenaX-prefix · OSCPre-unification Italian state
XQParmaX-prefix · OSCPre-unification Italian state
XDSardiniaX-prefix · OSCPre-unification Italian state
XELombardy-VenetiaX-prefix · OSCPre-unification Italian state

The X-prefix namespace (in cochineal) never collides with current or withdrawn ISO codes. X-prefix codes are assigned by Stewards for entities never given an ISO code, or where an ISO code creates a philatelic collision.