| Prefix code | Country |
| A - Western South Pacific |
| AG | Solomon Islands |
| AN | Nauru |
| AY | Papua New Guinea |
| B - Iceland/Greenland and Kosovo |
| BG | Greenland |
| BI | Iceland |
| BK | Kosovo (also LY Serbia because of disputes) |
| C - Canada |
| C | Canada |
| D - West Africa |
| DA | Algeria |
| DB | Benin |
| DF | Burkina Faso |
| DG | Ghana |
| DI | Côte d'Ivoire |
| DN | Nigeria |
| DR | Niger |
| DT | Tunisia |
| DX | Togolese Republic |
| E - Northern Europe |
| EB | Belgium |
| ED | Germany (civil) |
| EE | Estonia |
| EF | Finland |
| EG | United Kingdom |
| EH | Netherlands |
| EI | Ireland |
| EK | Denmark |
| EL | Luxembourg |
| EN | Norway |
| EP | Poland |
| ES | Sweden |
| ET | Germany (military) |
| EV | Latvia |
| EY | Lithuania |
| F - Southern Africa |
| FA | South Africa |
| FB | Botswana |
| FC | Republic of the Congo |
| FD | Swaziland |
| FE | Central African Republic |
| FG | Equatorial Guinea |
| FH | Ascension Island |
| FI | Mauritius |
| FJ | British Indian Ocean Territory |
| FK | Cameroon |
| FL | Zambia |
| FM | Comoros, Madagascar, Mayotte, Réunion |
| FN | Angola |
| FO | Gabon |
| FP | São Tomé and Príncipe |
| FQ | Mozambique |
| FS | Seychelles |
| FT | Chad |
| FV | Zimbabwe |
| FW | Malawi |
| FX | Lesotho |
| FY | Namibia |
| FZ | Democratic Republic of the Congo |
| G - Northwestern Africa |
| GA | Mali |
| GB | The Gambia |
| GC | Canary Islands (Spain) |
| GE | Ceuta and Melilla (Spain) |
| GF | Sierra Leone |
| GG | Guinea-Bissau |
| GL | Liberia |
| GM | Morocco |
| GO | Senegal |
| GQ | Mauritania |
| GS | Western Sahara |
| GU | Guinea |
| GV | Cape Verde |
| H - Northeastern Africa |
| HA | Ethiopia |
| HB | Burundi |
| HC | Somalia |
| HD | Djibouti (also HF) |
| HE | Egypt |
| HF | Djibouti (also HD) |
| HH | Eritrea |
| HK | Kenya |
| HL | Libya |
| HR | Rwanda |
| HS | Sudan |
| HT | Tanzania |
| HU | Uganda |
| K - USA |
| K | Contiguous United States of America |
| L - Southern Europe,Israel and Turkey |
| LA | Albania |
| LB | Bulgaria |
| LC | Cyprus |
| LD | Croatia |
| LE | Spain |
| LF | France, including Saint-Pierre and Miquelon |
| LG | Greece |
| LH | Hungary |
| LI | Italy |
| LJ | Slovenia |
| LK | Czech Republic |
| LL | Israel |
| LM | Malta |
| LN | Monaco |
| LO | Austria |
| LP | Portugal, including the Azores |
| LQ | Bosnia and Herzegovina |
| LR | Romania |
| LS | Switzerland |
| LT | Turkey |
| LU | Moldova |
| LV | Areas Under the Control of the Palestinian Authority |
| LW | Macedonia |
| LX | Gibraltar |
| LY | Serbia and Montenegro |
| LZ | Slovakia |
| M - Central America and Mexico |
| MB | Turks and Caicos Islands |
| MD | Dominican Republic |
| MG | Guatemala |
| MH | Honduras |
| MK | Jamaica |
| MM | Mexico |
| MN | Nicaragua |
| MP | Panama |
| MR | Costa Rica |
| MS | El Salvador |
| MT | Haiti |
| MU | Cuba |
| MW | Cayman Islands |
| MY | Bahamas |
| MZ | Belize |
| N - South Pacific |
| NC | Cook Islands |
| NF | Fiji, Tonga |
| NG | Kiribati (Gilbert Islands), Tuvalu |
| NI | Niue |
| NL | Wallis and Futuna |
| NS | Samoa, American Samoa |
| NT | French Polynesia |
| NV | Vanuatu |
| NW | New Caledonia |
| NZ | New Zealand, Antarctica |
| O - Southwest Asia (excluding Israel and Turkey), Afghanistan and Pakistan |
| OA | Afghanistan |
| OB | Bahrain |
| OE | Saudi Arabia |
| OI | Iran |
| OJ | Jordan and the West Bank |
| OK | Kuwait |
| OL | Lebanon |
| OM | United Arab Emirates |
| OO | Oman |
| OP | Pakistan |
| OR | Iraq |
| OS | Syria |
| OT | Qatar |
| OY | Yemen |
| P - Eastern North Pacific |
| PA | Alaska only |
| PB | Baker Island |
| PC | Kiribati (Canton Airfield, Phoenix Islands) |
| PF | Fort Yukon, Alaska |
| PG | Guam, Northern Marianas |
| PH | Hawaiʻi only |
| PJ | Johnston Atoll |
| PK | Marshall Islands |
| PL | Kiribati (Line Islands) |
| PM | Midway Island |
| PO | Oliktok Point, Alaska |
| PP | Point Lay, Alaska |
| PT | Federated States of Micronesia, Palau |
| PW | Wake Island |
| R - Western North Pacific |
| RC | Republic of China (Taiwan) |
| RJ | Japan (most of country) |
| RK | South Korea |
| RO | Japan (Okinawa Prefecture and Yoron) |
| RP | Philippines |
| S - South America |
| SA | Argentina |
| SB | Brazil (also SD, SN, SS and SW) |
| SC | Chile |
| SD | Brazil (also SB, SN, SS and SW) |
| SE | Ecuador |
| SF | Falkland Islands |
| SG | Paraguay |
| SK | Colombia |
| SL | Bolivia |
| SM | Suriname |
| SN | Brazil (also SB, SD, SS and SW) |
| SO | French Guiana |
| SP | Peru |
| SS | Brazil (also SB, SD, SN and SW) |
| SU | Uruguay |
| SV | Venezuela |
| SW | Brazil (also SB, SD, SN and SS) |
| SY | Guyana |
| T - Caribbean |
| TA | Antigua and Barbuda |
| TB | Barbados |
| TD | Dominica |
| TF | Guadeloupe |
| TG | Grenada |
| TI | U.S. Virgin Islands |
| TJ | Puerto Rico |
| TK | Saint Kitts and Nevis |
| TL | Saint Lucia |
| TN | Netherlands Antilles, Aruba |
| TQ | Anguilla |
| TR | Montserrat |
| TT | Trinidad and Tobago |
| TU | British Virgin Islands |
| TV | Saint Vincent and the Grenadines |
| TX | Bermuda |
| U - Russia and former Soviet States |
| U | Russia (except UA, UB, UD, UG, UK, UM and UT) |
| UA | Kazakhstan, Kyrgyzstan |
| UB | Azerbaijan |
| UD | Armenia |
| UG | Georgia |
| UK | Ukraine |
| UM | Belarus |
| UT | Tajikistan, Turkmenistan, Uzbekistan |
| V - South Asia (except Afghanistan and Pakistan) and mainland Southeast Asia |
| VA | India (West Zone, Mumbai Center) |
| VC | Sri Lanka |
| VD | Cambodia |
| VE | India (East Zone, Kolkata Center) |
| VG | Bangladesh |
| VH | Hong Kong, China |
| VI | India (North Zone, Delhi Center) |
| VL | Laos |
| VM | Macau, China |
| VN | Nepal |
| VO | India (South Zone, Chennai Center) |
| VQ | Bhutan |
| VR | Maldives |
| VT | Thailand |
| VV | Vietnam |
| VY | Myanmar |
| W - Maritime Southeast Asia (except the Philippines) |
| WA | Indonesia (also WI, WQ and WR) |
| WB | Malaysia (also WM), Brunei |
| WI | Indonesia (also WA, WQ and WR) |
| WM | Malaysia (also WB) |
| WP | Timor-Leste |
| WQ | Indonesia (also WA, WI and WR) |
| WR | Indonesia (also WA, WI and WQ) |
| WS | Singapore |
| Y - Australia |
| Y | Australia |
| Z - China, Mongolia and North Korea |
| Z | People's Republic of China (except ZK and ZM) |
| ZK | North Korea |
| ZM | Mongolia |
