| Country Codes and Internet Top Level domains ISO-3166 | ||
| AD Andorra | AE United Arab Emirates | AF Afghanistan |
| AG Antigua and Barbuda | AI Anguilla | AL Albania |
| AM Armenia | AN Netherlands Antilles | AO Angola |
| AQ Antarctica | AR Argentina | AS American Samoa |
| AT Austria | AU Australia | AW Aruba |
| AZ Azerbaijan | BA Bosnia and Herzegovina | BB Barbados |
| BD Bangladesh | BE Belgium | BF Burkina Faso |
| BG Bulgaria | BH Bahrain | BI Burundi |
| BJ Benin | BM Bermuda | BN Brunei Darussalam |
| BO Bolivia | BR Brazil | BS Bahamas |
| BT Bhutan | BV Bouvet Island | BW Botswana |
| BY Belarus | BZ Belize | CA Canada |
| CC Cocos (Keeling) Islands | 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 | CR Costa Rica | CS Czechoslovakia (former) |
| CU Cuba | CV Cape Verde | CX Christmas Island |
| CY Cyprus | CZ Czech Republic | DE Germany |
| DJ Djibouti | DK Denmark | DM Dominica |
| DO Dominican Republic | DZ Algeria | EC Ecuador |
| EE Estonia | EG Egypt | EH Western Sahara |
| ER Eritrea | ES Spain | ET Ethiopia |
| FI Finland | FJ Fiji | FK Falkland Islands (Malvinas) |
| FM Micronesia | FO Faroe Islands | FR France |
| FX France, Metropolitan | GA Gabon | GB Great Britain (UK) |
| GD Grenada | GE Georgia | GF French Guiana |
| 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 | ID Indonesia | IE Ireland |
| IL Israel | IN India | IO British Indian Ocean Territory |
| IQ Iraq | IR Iran | IS Iceland |
| IT Italy | 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 | 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 | PT Portugal |
| PW Palau | PY Paraguay | QA Qatar |
| RE Reunion | RO Romania | RU Russian Federation |
| RW Rwanda | SA Saudi Arabia | Sb Solomon Islands |
| SC Seychelles | SD Sudan | SE Sweden |
| 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 | ST Sao Tome and Principe | SU USSR (former) |
| SV El Salvador | SY Syria | SZ Swaziland |
| TC Turks and Caicos Islands | TD Chad | TF French Southern Territories |
| TG Togo | TH Thailand | TJ Tajikistan |
| TK Tokelau | TM Turkmenistan | TN Tunisia |
| TO Tonga | TP East Timor | 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 |
