Similar to ISO_3166-2:SG
ISO 3166-2:AQ
ISO 3166-2:AQISO 3166-2:AR
ISO 3166-2:ARISO 3166-2:AS
ISO 3166-2:ASISO 3166-2:AT
ISO 3166-2:AT
ISO 3166-2:AU
ISO 3166-2:AU
ISO 3166-2:AW
ISO 3166-2:AWISO 3166-2:AX
ISO 3166-2:AXISO 3166-2:AZ
ISO 3166-2:AZISO 3166-2:BA
ISO 3166-2:BAISO 3166-2:BB
ISO 3166-2:BBISO 3166-2:BD
ISO 3166-2:BDISO 3166-2:BE
ISO 3166-2:BEISO 3166-2:BF
ISO 3166-2:BFISO 3166-2:BG
ISO 3166-2:BGISO 3166-2:BH
ISO 3166-2:BHISO 3166-2:BI
ISO 3166-2:BIISO 3166-2:BJ
ISO 3166-2:BJISO 3166-2:BL
ISO 3166-2:BLISO 3166-2:BM
ISO 3166-2:BMISO 3166-2:BN
ISO 3166-2:BNISO 3166-2:BO
ISO 3166-2:BOISO 3166-2:BQ
ISO 3166-2:BQ
ISO 3166-2:BR
ISO 3166-2:BRISO 3166-2:BS
ISO 3166-2:BS
ISO 3166-2:BT
ISO 3166-2:BTISO 3166-2:BV
ISO 3166-2:BVISO 3166-2:BW
ISO 3166-2:BWISO 3166-2:BY
ISO 3166-2:BY