A List of all Country Codes

Wikipedia for a more current list, or IANA (Internet assigned numbers authority) for top level domain names.
AC Ascension Island AD Andorra AE United Arab Emirates AF Afghanistan AG Antigua and Barbuda AI Anguilla AL Albania AM Armenia AN Netherlands Antilles AO Angola AP African Regional Industrial Property Organization AQ Antarctica AR Argentina AS American Samoa AT Austria AU Australia AW Aruba AX Åland Islands AZ Azerbaijan BA Bosnia and Herzegovina BB Barbados BD Bangladesh BE Belgium BF Burkina Faso BG Bulgaria BH Bahrain BI Burundi BJ Benin BL Saint Barthélemy BM Bermuda BN Brunei Darussalam BO Bolivia BQ Bonaire, Sint Eustatius and Saba BR Brazil BS Bahamas BT Bhutan BU Burma BV Bouvet Island BW Botswana BY Belarus BZ Belize CA Canada CC Cocos (Keeling) Islands CD Congo, the Democratic Republic of the (Formerly Zaire) CF Central African Republic CG Congo CH Switzerland CI Cote D'Ivoire (Ivory Coast) CK Cook Islands CL Chile CM Cameroon CN China CO Colombia CP Clipperton Island CR Costa Rica CS Czechoslovakia (former) CS (Serbia and Montenegro) CU Cuba CV Cape Verde CW Curaçao CX Christmas Island CY Cyprus CZ Czech Republic DE Germany DG Diego Garcia DJ Djibouti DK Denmark DM Dominica DO Dominican Republic DY Benin DZ Algeria EA Ceuta, Melilla EC Ecuador EE Estonia EG Egypt EH Western Sahara ER Eritrea ES Spain ET Ethiopia EU European Union EW Estonia FI Finland FJ Fiji FK Falkland Islands (Malvinas) FL Liechtenstein FM Micronesia FO Faroe Islands FR France FX France, Metropolitan GA Gabon GB Great Britain (UK) GD Grenada GE Georgia GF French Guiana GG Guernsey GH Ghana GI Gibraltar GL Greenland GM Gambia GN Guinea GP Guadeloupe GQ Equatorial Guinea GR Greece GS S. Georgia and S. Sandwich Isls. GT Guatemala GU Guam GW Guinea-Bissau GY Guyana HK Hong Kong HM Heard and McDonald Islands HN Honduras HR Croatia (Hrvatska) HT Haiti HU Hungary IC Canary Islands ID Indonesia IE Ireland IL Israel IM Isle of Man IN India IO British Indian Ocean Territory IQ Iraq IR Iran IS Iceland IT Italy JA Jamaica JE Jersey JM Jamaica JO Jordan JP Japan KE Kenya KG Kyrgyzstan KH Cambodia KI Kiribati KM Comoros KN Saint Kitts and Nevis KP Korea (North) KR Korea (South) KW Kuwait KY Cayman Islands KZ Kazakhstan LA Laos LB Lebanon LC Saint Lucia LI Liechtenstein LK Sri Lanka LR Liberia LS Lesotho LT Lithuania LU Luxembourg LV Latvia LY Libya MA Morocco MC Monaco MD Moldova ME Montenegro MF Saint Martin (French part) MG Madagascar MH Marshall Islands MK Macedonia ML Mali MM Myanmar MN Mongolia MO Macau MP Northern Mariana Islands MQ Martinique MR Mauritania MS Montserrat MT Malta MU Mauritius MV Maldives MW Malawi MX Mexico MY Malaysia MZ Mozambique NA Namibia NC New Caledonia NE Niger NF Norfolk Island NG Nigeria NI Nicaragua NL Netherlands NO Norway NP Nepal NR Nauru NT Neutral Zone NU Niue NZ New Zealand (Aotearoa) OM Oman PA Panama PE Peru PF French Polynesia PG Papua New Guinea PH Philippines PK Pakistan PL Poland PM St. Pierre and Miquelon PN Pitcairn PR Puerto Rico PS Palestinian Territory, Occupied PT Portugal PW Palau PY Paraguay QA Qatar RE Reunion RO Romania RS Serbia RU Russian Federation RW Rwanda SA Saudi Arabia Sb Solomon Islands SC Seychelles SD Sudan SE Sweden SF Finland SG Singapore SH St. Helena SI Slovenia SJ Svalbard and Jan Mayen Islands SK Slovak Republic SL Sierra Leone SM San Marino SN Senegal SO Somalia SR Suriname SS South Sudan ST Sao Tome and Principe SU USSR (former) SV El Salvador SX Sint Maarten (Dutch part) SY Syria SZ Swaziland TA Tristan da Cunha TC Turks and Caicos Islands TD Chad TF French Southern Territories TG Togo TH Thailand TJ Tajikistan TK Tokelau TL Timor-Leste TM Turkmenistan TN Tunisia TO Tonga TP East Timor (now Timor-Leste) TR Turkey TT Trinidad and Tobago TV Tuvalu TW Taiwan TZ Tanzania UA Ukraine UG Uganda UK United Kingdom UM US Minor Outlying Islands US United States UY Uruguay UZ Uzbekistan VA Vatican City State (Holy See) VC Saint Vincent and the Grenadines VE Venezuela VG Virgin Islands (British) VI Virgin Islands (U.S.) VN Viet Nam VU Vanuatu WF Wallis and Futuna Islands WS Samoa YE Yemen YT Mayotte YU Yugoslavia ZA South Africa ZM Zambia ZR Zaire ZW Zimbabwe COM US Commercial EDU US Educational GOV US Government INT International MIL US Military NET Network ORG Non-Profit Organization ARPA Old style Arpanet NATO Nato field