Value,Category,Reference
00001,Africa (AF),[RFC4384]
00010,Oceania (OC),[RFC4384]
00011,Asia (AS),[RFC4384]
00100,Antarctica (AQ),[RFC4384]
00101,Europe (EU),[RFC4384]
00110,Latin America/Caribbean Islands (LAC),[RFC4384]
00111,North America (NA),[RFC4384]
01000-11111,Reserved,