| Country |
Prefix |
yrs |
Notes |
|
| Afghanistan | YA- | 29- | | |
| Albania | B-A | 24- | No known use | |
| Algeria | F-O | 29-62 | | |
| Andorra | C3- | 29- | No known registrations | |
| Angola | CR-L | 29-75 | Initially used A as last letter | |
| Anguilla | VP-LA | 29-82 | No known pre-war registrations | |
| Antigua/Leeward/Windward Is | VP-L | 29-82 | No registrations pre 1969 | |
| Argentina | R-A | 24-29 | | |
| Argentina | R- | 29-32 | numbers | |
| Argentina | LV- | 32- | | |
| Armenia | EK- | | No known pre-war registrations | |
| Australia | G-AU | 19-29 | | |
| Australia | VH-U | 29- | | |
| Australia | VH-A | 38- | | |
| Austria | OE- | 37- | | |
| Austria | A- | 19-39 | numbers | |
| Bahamas | VP-B | 29-75 | No pre-war registrations | |
| Barbados | VQ-B | 29-68 | No registrations pre 1952 | |
| Belgium | O-B | 19-29 | | |
| Belgium | OO- | 29- | | |
| Benin/Dahomey | F-O | 29-60 | | |
| Bermuda | VR-B | 39-95 | | |
| Bolivia | C-B | 19-29 | numbers. No known registrations | |
| Bolivia | CB- | 29-54 | numbers | |
| Botswana/Bechuanaland | VQ-ZE to VQ-ZH | 29-68 | | |
| Brazil | P-B | 19-32 | | |
| Brazil | PP- | 29- | | |
| Brazil | PT- | 29- | No known pre-war registrations | |
| British Honduras/Belize | VP-H | 29- | No pre-war registrations | |
| British Territories | VP-,VQ-,VR- | 19- | | |
| Brunei | VR-U | 29-63 | No known pre-war registrations | |
| Bulgaria | B-B | 23-29 | | |
| Bulgaria | LZ- | 29- | | |
| Burkina Faso/Upper Volta | F-O | 29-60 | | |
| Burma | XY- | 1940- | | |
| Cambodia/Kampuchea | F-KH | 45-54 | No known pre-war registrations | |
| Cameroun | F-O | 29-60 | | |
| Canada | G-C | 19-29 | | |
| Canada | CF- | 29-73 | | |
| Canada/Newfoundland | VO- | 29-58 | | |
| Cape Verde | CR-C | 29-80 | No pre-war registrations | |
| Central African Republic/Ubang-Shari | F-O | 29-60 | | |
| Chad | F-O | 29-60 | | |
| Chile | CC- | 29- | | |
| China | EU- | 1930- | roman numerals | |
| China | X-C | 19- | | |
| China | XT- | 29-49 | numbers | |
| China (Wei-Hai-Wei) | VP-W | 29-39 | No known registrations | |
| China/Hong Kong | VR-H | 29-97 | letters | |
| China/Manchuria | M- | 32-45 | numbers | |
| Columbia | C- | 29-46 | numbers (also A- F- M-) | |
| Congo Peoples Republic | F-O | 29-60 | | |
| Costa Rica | K-C | 25- | No known registrations | |
| Costa Rica | TI- | 29- | | |
| Cuba | NM- | 39-45 | numbers | |
| Cuba | C-C | 19-29 | No known registrations | |
| Cyprus | VQ-C | 29- | No pre-war registrations | |
| Czechoslovakia | L-B | 19-29 | | |
| Czechoslovakia/Czech Republic | OK- | 29- | | |
| Danzig | Dz- | 29-39 | | |
| Danzig (Germany/Poland) | Y-M | 19-29 | | |
| Danzig (Germany/Poland) | YM- | 29-39 | | |
| Denmark | T-D | 19-29 | | |
| Denmark | OY- | 29- | | |
| Dominican Republic | HI- | 29- | numbers | |
| Ecuador | E-E | 19-29 | No known registrations | |
| Ecuador | HC- | 29- | | |
| Egypt | SU- | 29- | | |
| El Salvador | YS- | 29- | | |
| Eritrea | ER- | -93 | No known registrations | |
| Estonia | C-E | 19-29 | No known registrations | |
| Estonia | E-A | 29-39 | No known registrations | |
| Estonia | E- | 19-29 | numbers | |
| Estonia | ES- | 29-39 | | |
| Ethiopia | ET- | 29- | | |
| Falklands Islands | VP-F | 29- | No pre-war registrations | |
| Fiji/Tonga/Friendly | VQ-F | 29-71 | | |
| Finland | K-S | 23-31 | | |
| Finland | OH- | 31- | | |
| France | F- | 19- | | |
| France | F-O | 29- | French Overseas Territories | |
| France | FC- | 40-46 | Free French | |
| Gabon | F-O | 29-60 | | |
| Gambia | VP-X | 29-65 | | |
| Germany | WL- | -45 | Wehrmacht/Luftwafe | |
| Germany | D- | 19-34 | numbers | |
| Germany | D- | 34- | letters | |
| Ghana/Gold Coast | VP-A | 29-57 | No pre-war registrations | |
| Gibraltar | VR-G | 29-95 | No known pre-war registrations | |
| Goa/Portuguese Goa | CR-I | 29-61 | No known registrations | |
| Great Britain | G-E | 19-29 | | |
| Great Britain | G-A | 29- | | |
| Great Britain | G-F | 19-29 | Lighter than air | |
| Great Britain | G-G | 37-37 | Gliders | |
| Greece | S-G | 19-29 | No known registrations | |
| Greece | SX- | 29- | | |
| Grenada | VQ-G | 29- | No pre-war registrations | |
| Guatemala | L-G | 19-29 | No known registrations | |
| Guatemala | LG- | 29-45 | | |
| Guinea | F-O | 29-58 | | |
| Guinea-Bissau/Portuguese Guinea | CR-G | 29-75 | | |
| Guyana/British Guiana | VP-G | 29-67 | No pre-war registrations | |
| Haiti | H-H | 19-29 | No known registrations | |
| Haiti | HH- | 29- | No known pre-war registrations | |
| Honduras | X-H | 19- | No known registrations | |
| Honduras | XH- | 29-60 | | |
| Hungary | HA- | 35- | | |
| Hungary | H-M | 19-35 | | |
| Iceland | TF- | 37- | | |
| Iceland | ISLAND- | 30-37 | | |
| India | G-I | 19-29 | | |
| India | VT- | 29- | | |
| Indonesia/Dutch East Indies | PK- | 29- | | |
| Indonesia/Timor | CR-T | 29-75 | No pre-war registrations. Initially used T as last letter | |
| Iran | EP- | 38- | | |
| Iran/Persia | RV- | 29-38 | No known registrations | |
| Iraq | YI- | 31- | | |
| Ireland | EI- | 29- | | |
| Israel/Palestine | VQ-P | 30-48 | | |
| Italy | I- | 19- | | |
| Ivory Coast | F-O | 29-60 | | |
| Jamaica | VP-J | 29-62 | | |
| Japan | J- | 19-45 | | |
| Kenya | VP-K | 29-63 | | |
| Kenya | G-K | | No known registrations | |
| Latvia | YL- | 29-39 | | |
| Latvia | B-L | 19-29 | | |
| Latvia | LL- | | No known registrations | |
| Lebanon | LR- | 44-54 | No known pre-war registrations | |
| Lesotho/Basutoland | VQ-ZA to VQ-ZD | 29-67 | No known registrations | |
| Liberia | L-L | 19- | No known registrations | |
| Liberia | LI- | 29-52 | No known registrations | |
| Liechenstein | HB-L | 35- | No known registrations | |
| Lithuania | Z-L | 19-29 | No known registrations | |
| Lithuania | R-Z | 29-39 | No known registrations | |
| Lithuania | LY- | 29-39 | | |
| Lithuania | RY- | 29-39 | | |
| Luxembourg | UL- | 29-39 | | |
| Luxembourg | LX- | 39- | | |
| Luxembourg | L-U | 19- | No known registrations | |
| Macau | CR-M | -91 | No known registrations | |
| Madagascar/Malagasy | F-O | 29-60 | | |
| Malawi/Nyasaland | VP-N | 29-53 | | |
| Malaysia/Johore | VR-J | 29-63 | No known registrations | |
| Malaysia/Malaya | VR-R | 29-63 | | |
| Malaysia/Sabah-N. Borneo | VR-O | 29-63 | | |
| Malaysia/Sarawak | VR-W | 29-64 | No pre-war registrations | |
| Mali | F-O | 29-60 | | |
| Malta | VP-M | 29-68 | No registrations pre 1962 | |
| Mauritania | F-O | 29-60 | | |
| Mauritius | VQ-M | 29-68 | No pre-war registrations | |
| Mexico | M-S | 19-29 | | |
| Mexico | XC- | 39- | No known registrations | |
| Mexico | X-A | 19-39 | | |
| Mexico | X-B | 19-39 | | |
| Mexico | XA- | 39- | | |
| Mexico | XB- | 39- | | |
| Monaco | M-O | 19-29 | No known registrations | |
| Monaco | CZ- | 29-49 | No known registrations | |
| Mongolia | HMAY- | 45- | numbers | |
| Montserrat | VP-LM | 29-82 | No known pre-war registrations | |
| Morocco | F-D | 29-52 | No known registrations | |
| Mozambique | CR-M | 29-37 | | |
| Mozambique | CR-A | 37-75 | | |
| Mozambique | C-PM | 19- | | |
| Netherlands | PH- | 29- | | |
| Netherlands | H-N | 19-29 | | |
| Netherlands Antilles/Curacao/Aruba | PJ- | 29-86 | | |
| New Hebrides/Vanuatu | YJ- | 29- | No pre-war registrations | |
| New Zealand | G-NZ | 19-29 | | |
| New Zealand | ZK- | 29- | | |
| Nicaragua | A-N | 19-29 | No known registrations | |
| Nicaragua | YN- | 29-36 | No known registrations | |
| Nicaragua | AN- | 36-80 | | |
| Niger | F-O | 29-60 | | |
| Nigeria/British Camerouns | VR-N | 29-60 | | |
| Norway | N- | 19-31 | numbers | |
| Norway | LN- | 31- | | |
| Pacific Islands West/Solomon Is | VP-P | 29-78 | No pre-war registrations | |
| Panama | S-P | 19-29 | No known registrations | |
| Panama | R- | 29-43 | numbers | |
| Panama | RX- | 43-52 | numbers | |
| Panama/Canal zone | CZ- | 39-45 | numbers | |
| Paraguay | ZP- | 29- | No known pre-war registrations | |
| Peru | O-P | 19-29 | No known registrations | |
| Peru | O-A | 19-29 | No known registrations | |
| Peru | OA- | 29-50 | | |
| Peru | OB- | 29- | | |
| Philippines | NPC- | 35-41 | | |
| Philippines | PI- | 41-75 | numbers. No pre-war use | |
| Poland | P-P | 19-29 | | |
| Poland | SP- | 29- | | |
| Portugal | C-P | 19-29 | | |
| Portugal | CS- | 29- | | |
| Portugal | CR- | 29- | Portuguese Overseas Territories | |
| Rhodesia North/Zambia | VP-R | 29-53 | | |
| Rhodesia South/Zimbabwe | VP-Y | 29-64 | | |
| Romania | C-R | 19-29 | | |
| Romania | CV- | 29-36 | | |
| Romania | YR- | 36- | | |
| Saar Territories | EZ- | 29-35 | | |
| Saar Territories | TS- | 29-35 | | |
| Sao Tome & Principe | CR-S | 29-75 | No pre-war registrations | |
| Saudi Arabia/Hedjaz | A-H | 19-39 | No known registrations | |
| Saudi Arabia/Hedjaz | UH- | 32-44 | No known registrations | |
| Senegal | F-O | 29-60 | | |
| Seychelles | VQ-S | 29-77 | No known pre-war registrations | |
| Sierra Leone | VR-L | 29-61 | | |
| Singapore | VR-S | 29- | | |
| Somali | VP-S | 29-60 | No known pre-war registrations | |
| South Africa | G-U | 19-29 | | |
| South Africa | ZS- | 29- | | |
| Spain | EC- | 29- | | |
| Spain | M- | 19-29 | | |
| Sri Lanka/Ceylon | VP-C | 29-48 | | |
| St. Kitts & Nevis | VP-LK | 29-82 | No known pre-war registrations | |
| St.Helena | VQ-H | 29- | No registrations pre war | |
| St.Lucia | VQ-L | 29- | No pre-war registrations | |
| St.Vincent/Windward Is | VP-V | 29- | No pre-war registrations | |
| Sudan | SN- | 29-59 | No pre-war registrations | |
| Surinam | PZ- | 29- | No pre-war registrations | |
| Swaziland | VQ-ZI | 29-75 | No pre-war registrations | |
| Sweden | S- | 19-29 | | |
| Sweden | SE- | 29- | | |
| Switzerland | C-H | 19-29 | No known registrations | |
| Switzerland | CH- | 29-36 | numbers | |
| Switzerland | HB- | 35- | | |
| Tanzania/Tanganyika | VR-T | 29-64 | | |
| Tanzania/Zanzibar | VP-Z | 29-64 | No known pre-war registrations | |
| Thailand/Siam | H-S | 19- | No known pre-war registrations | |
| Thailand/Siam | HS- | 29- | | |
| Trinidad & Tobago | VP-T | 31-65 | | |
| Tunisia | F-O | 29-56 | | |
| Turkey | TC- | 29- | | |
| Uganda | VP-U | 29-62 | No pre-war registrations | |
| Uruguay | C-U | 19-29 | No known registrations | |
| Uruguay | CX- | 29- | | |
| USA | N- | 21-23 | letters | |
| USA | N | 29- | numbers | |
| USSR | URSS- | 29-44 | | |
| USSR | CCCP- | 29-92 | | |
| USSR | SSSR- | 29-92 | | |
| USSR | USSR- | 29-92 | | |
| USSR | DL- | 27-29 | numbers | |
| USSR/Russia | IS- | 17-91 | No known registrations | |
| USSR/Russia | RR- | 22-28 | numbers | |
| USSR/Russia | U- | 29-44 | numbers. No known registrations | |
| Vatican City | HV- | | No known registrations | |
| Venezuela | YV- | 29- | | |
| Vietnam | F-VN | 29-54 | No pre-war registrations | |
| Virgin Islands/British VI | VP-LV | 29- | No known registrations | |
| Yeman- Peoples Demo. Rep./Aden | VR-A | 39-69 | No pre-war registrations | |
| Yugoslavia | UN- | 29-35 | | |
| Yugoslavia | YU- | 35- | | |
| Yugoslavia/Serbia/Croatia | X-S | 19-29 | | |
| Zaire/Belgian Congo | OO-C | 29-60 | | |