| AA | ARUBA |
| AC | ANTIGUA AND BARBUDA |
| AE | UNITED ARAB EMIRATES |
| AF | AFGHANISTAN |
| AG | ALGERIA |
| AJ | AZERBAIJAN |
| AL | ALBANIA |
| AM | ARMENIA |
| AN | ANDORRA |
| AO | ANGOLA |
| AQ | AMERICAN SAMOA |
| AR | ARGENTINA |
| AS | AUSTRALIA |
| AT | ASHMORE AND CARTIER ISLANDS |
| AU | AUSTRIA |
| AV | ANGUILLA |
| AY | ANTARCTICA |
| BA | BAHRAIN |
| BB | BARBADOS |
| BC | BOTSWANA |
| BD | BERMUDA |
| BE | BELGIUM |
| BF | BAHAMAS, THE |
| BG | BANGLADESH |
| BH | BELIZE |
| BK | BOSNIA AND HERZEGOVINA |
| BL | BOLIVIA |
| BM | BURMA |
| BN | BENIN |
| BO | BELARUS |
| BP | SOLOMON ISLANDS |
| BQ | NAVASSA ISLAND |
| BR | BRAZIL |
| BS | BASSAS DA INDIA |
| BT | BHUTAN |
| BU | BULGARIA |
| BV | BOUVET ISLAND |
| BX | BRUNEI |
| BY | BURUNDI |
| CA | CANADA |
| CB | CAMBODIA |
| CD | CHAD |
| CE | SRI LANKA |
| CF | CONGO |
| CG | CONGO, DEMOCRATIC REPUBLIC OF THE |
| CH | CHINA |
| CI | CHILE |
| CJ | CAYMAN ISLANDS |
| CK | COCOS (KEELING) ISLANDS |
| CM | CAMEROON |
| CN | COMOROS |
| CO | COLOMBIA |
| CQ | NORTHERN MARIANA ISLANDS |
| CR | CORAL SEA ISLANDS |
| CS | COSTA RICA |
| CT | CENTRAL AFRICAN REPUBLIC |
| CU | CUBA |
| CV | CAPE VERDE |
| CW | COOK ISLANDS |
| CY | CYPRUS |
| DA | DENMARK |
| DJ | DJIBOUTI |
| DO | DOMINICA |
| DQ | JARVIS ISLAND |
| DR | DOMINICAN REPUBLIC |
| EC | ECUADOR |
| EG | EGYPT |
| EI | IRELAND |
| EK | EQUATORIAL GUINEA |
| EN | ESTONIA |
| ER | ERITREA |
| ES | EL SALVADOR |
| ET | ETHIOPIA |
| EU | EUROPA ISLAND |
| EZ | CZECH REPUBLIC |
| FG | FRENCH GUIANA |
| FI | FINLAND |
| FJ | FIJI |
| FK | FALKLAND ISLANDS (ISLAS MALVINAS) |
| FM | MICRONESIA, FEDERATED STATES OF |
| FO | FAROE ISLANDS |
| FP | FRENCH POLYNESIA |
| FQ | BAKER ISLAND |
| FR | FRANCE |
| FS | FRENCH SOUTHERN AND ANTARCTIC LANDS |
| GA | GAMBIA, THE |
| GB | GABON |
| GG | GEORGIA |
| GH | GHANA |
| GI | GIBRALTAR |
| GJ | GRENADA |
| GK | GUERNSEY |
| GL | GREENLAND |
| GM | GERMANY |
| GO | GLORIOSO ISLANDS |
| GP | GUADELOUPE |
| GQ | GUAM |
| GR | GREECE |
| GT | GUATEMALA |
| GV | GUINEA |
| GY | GUYANA |
| GZ | GAZA STRIP |
| HA | HAITI |
| HK | HONG KONG |
| HM | HEARD ISLAND AND MCDONALD ISLANDS |
| HO | HONDURAS |
| HQ | HOWLAND ISLAND |
| HR | CROATIA |
| HU | HUNGARY |
| IC | ICELAND |
| ID | INDONESIA |
| IM | ISLE OF MAN |
| IN | INDIA |
| IO | BRITISH INDIAN OCEAN TERRITORY |
| IP | CLIPPERTON ISLAND |
| IR | IRAN |
| IS | ISRAEL |
| IT | ITALY |
| IV | COTE D'IVOIRE |
| IZ | IRAQ |
| JA | JAPAN |
| JE | JERSEY |
| JM | JAMAICA |
| JN | JAN MAYEN |
| JO | JORDAN |
| JQ | JOHNSTON ATOLL |
| JU | JUAN DE NOVA ISLAND |
| KE | KENYA |
| KG | KYRGYZSTAN |
| KN | NORTH KOREA |
| KQ | KINGMAN REEF |
| KR | KIRIBATI |
| KS | SOUTH KOREA |
| KT | CHRISTMAS ISLAND |
| KU | KUWAIT |
| KZ | KAZAKHSTAN |
| LA | LAOS |
| LE | LEBANON |
| LG | LATVIA |
| LH | LITHUANIA |
| LI | LIBERIA |
| LO | SLOVAKIA |
| LQ | PALMYRA ATOLL |
| LS | LIECHTENSTEIN |
| LT | LESOTHO |
| LU | LUXEMBOURG |
| LY | LIBYA |
| MA | MADAGASCAR |
| MB | MARTINIQUE |
| MC | MACAU |
| MD | MOLDOVA |
| MF | MAYOTTE |
| MG | MONGOLIA |
| MH | MONTSERRAT |
| MI | MALAWI |
| MJ | MONTENEGRO |
| MK | MACEDONIA |
| ML | MALI |
| MN | MONACO |
| MO | MOROCCO |
| MP | MAURITIUS |
| MQ | MIDWAY ISLANDS |
| MR | MAURITANIA |
| MT | MALTA |
| MU | OMAN |
| MV | MALDIVES |
| MX | MEXICO |
| MY | MALAYSIA |
| MZ | MOZAMBIQUE |
| NC | NEW CALEDONIA |
| NE | NIUE |
| NF | NORFOLK ISLAND |
| NG | NIGER |
| NH | VANUATU |
| NI | NIGERIA |
| NL | NETHERLANDS |
| NM | NO MAN'S LAND |
| NO | NORWAY |
| NP | NEPAL |
| NR | NAURU |
| NS | SURINAME |
| NT | NETHERLANDS ANTILLES |
| NU | NICARAGUA |
| NZ | NEW ZEALAND |
| OS | OCEANS |
| PA | PARAGUAY |
| PC | PITCAIRN ISLANDS |
| PE | PERU |
| PF | PARACEL ISLANDS |
| PG | SPRATLY ISLANDS |
| PK | PAKISTAN |
| PL | POLAND |
| PM | PANAMA |
| PO | PORTUGAL |
| PP | PAPUA NEW GUINEA |
| PS | PALAU |
| PU | GUINEA-BISSAU |
| QA | QATAR |
| RB | SERBIA |
| RE | REUNION |
| RM | MARSHALL ISLANDS |
| RO | ROMANIA |
| RP | PHILIPPINES |
| RQ | PUERTO RICO |
| RS | RUSSIA |
| RW | RWANDA |
| SA | SAUDI ARABIA |
| SB | SAINT PIERRE AND MIQUELON |
| SC | SAINT KITTS AND NEVIS |
| SE | SEYCHELLES |
| SF | SOUTH AFRICA |
| SG | SENEGAL |
| SH | SAINT HELENA |
| SI | SLOVENIA |
| SL | SIERRA LEONE |
| SM | SAN MARINO |
| SN | SINGAPORE |
| SO | SOMALIA |
| SP | SPAIN |
| ST | SAINT LUCIA |
| SU | SUDAN |
| SV | SVALBARD |
| SW | SWEDEN |
| SX | SOUTH GEORGIA AND THE SOUTH SANDWICH ISLANDS |
| SY | SYRIA |
| SZ | SWITZERLAND |
| TD | TRINIDAD AND TOBAGO |
| TE | TROMELIN ISLAND |
| TH | THAILAND |
| TI | TAJIKISTAN |
| TK | TURKS AND CAICOS ISLANDS |
| TL | TOKELAU |
| TN | TONGA |
| TO | TOGO |
| TP | SAO TOME AND PRINCIPE |
| TS | TUNISIA |
| TT | EAST TIMOR |
| TU | TURKEY |
| TV | TUVALU |
| TW | TAIWAN |
| TX | TURKMENISTAN |
| TZ | TANZANIA |
| UF | UNDERSEA FEATURES |
| UG | UGANDA |
| UK | UNITED KINGDOM |
| UP | UKRAINE |
| US | UNITED STATES |
| UV | BURKINA FASO |
| UY | URUGUAY |
| UZ | UZBEKISTAN |
| VC | SAINT VINCENT AND THE GRENADINES |
| VE | VENEZUELA |
| VI | BRITISH VIRGIN ISLANDS |
| VM | VIETNAM |
| VQ | UNITED STATES VIRGIN ISLANDS |
| VT | VATICAN CITY |
| WA | NAMIBIA |
| WE | WEST BANK |
| WF | WALLIS AND FUTUNA |
| WI | WESTERN SAHARA |
| WQ | WAKE ISLAND |
| WS | SAMOA |
| WZ | SWAZILAND |
| YM | YEMEN |
| ZA | ZAMBIA |
| ZI | ZIMBABWE |