This is a list of international license plate codes:
A Austria AFG Afghanistan AG Antigua and Barbuda AL Albania AND Andorra ANG Angola ARM Armenia AUS Australia AZ Azerbaijan B Belgium BD Bangladesh BDS Barbados BF Burkina Faso BG Bulgaria BH Belize BHT Bhutan BIH Bosnia-Herzegovina BOL Bolivia BR Brazil BRN Bahrain BRU Brunei BS Bahamas BU Burundi BVI British Virgin Islands BY Belarus BZ Belize C Cuba CAM Cameroon CD Democratic Republic of the Congo CDN Canada CH Switzerland CI Côte d'Ivoire CL Sri Lanka CO Colombia COM Comoros CR Costa Rica CV Cape Verde CY Cyprus CZ Czech Republic D Germany DDR German Democratic Republic (until 1990) DARS Sahara DJI Djibouti DK Denmark DOM Dominican Republic DVRK North Korea DY Benin DZ Algeria E Spain EAK Kenya EAT Tanzania EAU Uganda EC Ecuador ER Eritrea ES El Salvador EST Estonia ET Egypt ETH Ethiopia F France FIN Finland (formerly: SF) FJI Fiji FL Liechtenstein FR Faroes FSM Federated States of Micronesia G Gabon GB United Kingdom (Great Britain) GBA Alderney GBG Guernsey GBJ Jersey GBM Isle of Man GBZ Gibraltar GCA Guatemala GE Georgia GH Ghana GQ Equatorial Guinea GR Greece GUY Guyana H Hungary HK Hong Kong HN Honduras HR Croatia I Italy IL Israel IND India IR Iran IRL Republic of Ireland IRQ Iraq IS Iceland J Japan JA Jamaica JOR Jordan K Cambodia KIR Kiribati KN Greenland KS Kyrgyzstan KSA Saudi-Arabia KWT Kuwait KZ Kazakhstan L Luxembourg LAO Laos LAR Libya LB Liberia LS Lesotho LT Lithuania LV Latvia M Malta MA Morocco MAL Malaysia MC Monaco MD Moldavia MEX Mexico MGL Mongolia MH Marshall Islands MK Macedonia MOC Mozambique MS Mauritius MV Maldives MW Malawi MYA Myanmar N Norway NA Netherlands Antilles NAM Namibia NAU Nauru NEP Nepal NIC Nicaragua NL Netherlands NZ New Zealand OM Oman P Portugal PA Panama PAL Palau PE Peru PK Pakistan PL Poland PNG Papua New Guinea PRC People's Republic of China PS Occupied Palestinian territories PY Paraguay Q Qatar RA Argentina RB Botswana RC Republic of China (Taiwan) RCA Central African Republic RCB Republic of the Congo RCH Chile RE Réunion RG Guinea RH Haiti RI Indonesia RIM Mauritania RL Lebanon RM Madagascar RMM Mali RN Niger RO Romania ROK Korea ROU Uruguay RP Philippines RSM San Marino RT Togo RUS Russia RWA Rwanda S Sweden SCG Serbia and Montenegro (formerly: YU) SCN Saint Kitts and Nevis SD Swaziland SF formerly Finland (now: FIN) SGP Singapore SK Slovakia SLO Slovenia SME Suriname SN Senegal SOL Solomon Islands SP Somalia STP São Tomé and Príncipe SU Soviet Union (former) SUD Sudan SY Seychelles SYR Syria TCH Chad THA Thailand TJ Tajikistan TL Timor-Leste TM Turkmenistan TN Tunisia TO Tonga TR Turkey TT Trinidad and Tobago TUV Tuvalu UA Ukraine UAE United Arab Emirates USA United States UZ Uzbekistan V Vatican City VN Vietnam VU Vanuatu WAG The Gambia WAL Sierra Leone WAN Nigeria WD Dominica WG Grenada WL Saint Lucia WS Samoa WV Saint Vincent and the Grenadines YAR Yemen YU originally for Yugoslavia, afterwards was for Serbia and Montenegro - now SCG YV Venezuela Z Zambia ZA South Africa ZW Zimbabwe
N.B. There are other, unofficial codes in common use, such as "CYM" for Wales. These often signify places which are not internationally recognised as independent states. See http://www.kingkong.demon.co.uk/where/unoff.htm for a list of some of these.