| Regn Prefix |
Old Prefix |
Country Name |
Period |
Remarks |
| A2- | VQ-ZE, -ZH | Botswana | 1972- | |
| A3- | | Tonga | | |
| A4O- | | Oman | 1974- | (Alpha, Four, Oscar) |
| A5- | | Bhutan | | |
| A6- | | United Arab Emirates | 1977- | |
| A7- | | Qatar | 1975- | |
| A9C- | | Bahrain | 1977- | |
| AP- | | Pakistan | 1947- | |
| B- | | Taiwan (Republic of China) | 1949- | B- (5 digits) |
| B- | XT- | China (People's Republic of China) | 1975- | B- (4 digits) |
| B-H, B-K, B-L | VR-H | China, Hong Kong | 1997 | w.e.f. 01/07/1997 |
| B-M | CS-M | China, Macau | 1999- | w.e.f. 20/12/1999 |
| C- | CF- | Canada | 1974- | |
| C2- | | Naura | 1971- | |
| C3- | | Andorra | | |
| C5- | VP-X | The Gambia | 1978- | |
| C6- | VP-B | Bahamas | 1975- | |
| C9- | CR-A, CR-B | Mozambique | 1975- | |
| CC- | | Chile | 1929- | |
| CN- | | Morocco | 1952- | |
| CP- | CB- | Bolivia | 1954- | |
| CS- | CR- | Portugal | 1929- | |
| CU- | | Cuba | 1945- | |
| CX | | Christmas Islands | | |
| CX- | | Uruguay | 1929- | |
| D- | DM-, DDR- | Germany | 1929- | |
| D2- | CR-L | Angola | 1975- | |
| D4- | CR-C | Cape Verde Islands | | |
| D6- | | Comores | 1977- | |
| DQ- | VQ-F | Fiji | 1971- | |
| E3- | | Eritrea | | |
| E5- | | Cook Islands | | |
| E7- | YU-,T9- | Bosnia Hercegovina | | |
| EC- | M | Spain | 1929 | |
| EI- | | Ireland | 1929 | |
| EJ- | | Ireland | 2015 | Implemented w.e.f. 01 June 2015. First aircraft registered on 12 October 2018. |
| EK- | CCCP- | Armenia | | |
| EL- | LI- | Liberia | 1952- | |
| EP- | RV- | Iran | 1944- | |
| ER- | CCCP- | Moldova, Rep. of | | |
| ES- | CCCP- | Estonia | | |
| ET- | | Ethiopia | 1929- | |
| EW- | CCCP- | Belarus | | |
| EX- | CCCP- | Kyrgyzstan | | |
| EY- | CCCP- | Tajikistan | | |
| EZ- | CCCP- | Turkmenistan | | |
| F- | | France | 1929- | |
| F-O | | Reunion Island | | |
| F-OD | | New Caledonia | | |
| F-OG | | Guadeloupe | | |
| F-OG | | Martinique | | |
| F-OH | | Tahiti | | |
| G- | | United Kingdom | 1929- | |
| GL- | | Greenland | | |
| H4- | VP-P | Solomon Islands | | |
| HA- | | Hungary | 1935- | |
| HB- | CH- | Switzerland | 1935- | |
| HC- | | Ecuador | 1929- | |
| HH- | | Haiti | 1929- | |
| HI- | | Dominican Republic | 1929- | |
| HK- | C- | Colombia | 1946- | |
| HL | | Korea, Rep. of | 1948- | |
| HP- | RX- | Panama | 1952- | |
| HR- | XH- | Honduras | 1961- | |
| HS- | | Thailand | 1929- | |
| HV- | | Vatican City | | |
| HZ- | UH- | Saudi Arabia | 1945- | |
| I- | | Italy | 1929- | |
| J2- | | Djibouti | | |
| J3- | VQ-G | Grenada | | |
| J5- | CR-G | Guinea Bissau | | |
| J6- | VQ-L | St. Lucia | | |
| J7- | | Dominica | | |
| J8- | VP-V | St. Vincent and Grenadines | | |
| JA | J | Japan | 1948- | |
| JY- | | Jordan | 1954- | |
| LN- | | Norway | 1931- | |
| LQ- | | Argentina (Government) | 1932- | |
| LV- | R- | Argentina | 1932- | |
| LX- | UL- | Luxembourg | 1946- | |
| LY- | | Lithuania | | |
| LZ- | | Bulgaria | 1929- | |
| M- | | Isle of Man | 2007- | |
| MT- | | Mongolia | | |
| N | NC,NL,NR.NS,NX | United States of America | 1929- | |
| OB- | OA- | Peru | 1950- | |
| OD- | LR- | Lebanon | 1954- | |
| OE- | A- | Austria | 1945- | |
| OH- | K-S | Finland | 1931- | |
| OK- | | Czech Republic | 1993- | w.e.f. 01/01/1993. |
| OM- | OK- | Slovakia | 1993- | w.e.f. 01/01/1993. |
| OO- | | Belgium | 1929- | |
| OY- | | Denmark | 1929- | |
| P- | | Korea, Dem. People's Rep. of | | |
| P2- | | Papua New Guinea | 1974- | |
| P4- | | Aruba | 1986- | Part of the Netherlands Antilles until 01/01/1986. |
| PH- | | Netherlands | 1929- | |
| PJ- | | Netherlands Antilles | 1945- | |
| PK- | | Indonesia | 1929- | |
| PP- | | Brazil | 1932- | |
| PR- | | Brazil | | PR-ZAA-ZZZ reserved for experimental and LSA. |
| PS- | | Brazil | 2019- | |
| PT- | | Brazil | 1950- | |
| PU- | | Brazil | | Microlight and LSA prefix. |
| PZ- | | Suriname | 1929- | |
| RA- | CCCP- | Russian Federation | | |
| RDPL- | F-L, XW- | Lao | 1975- | |
| RF- | | Russian Federation (State owned aircraft) | | |
| RP- | PI- | Philippines | 1975- | |
| S2- | | Bangladesh | 1972- | |
| S3- | | Bangladesh | 1976 | |
| S5- | SL- | Slovenia | | |
| S7- | VQ-S | Seychelles | 1977- | |
| S9- | CR-S | Sao Tome and Principe | | |
| SE- | | Sweden | 1929- | |
| SP- | | Poland | 1929- | |
| ST- | SN- | Sudan | 1959- | |
| SU- | | Egypt | 1931- | |
| SX- | | Greece | 1929- | |
| T3- | | Kiribati | | |
| T7- | | San Marino | | |
| TC- | | Turkey | 1929- | |
| TF- | | Iceland | 1937- | |
| TG- | LG- | Guatemala | 1948- | |
| TI- | | Costa Rica | 1931- | |
| TJ- | F-O, VR-N | Cameroon | 1960- | |
| TL- | F-O | Central African Republic | 1960- | |
| TN- | F-O | Congo | 1960- | |
| TR- | F-O | Gabon | 1960- | |
| TS- | F-O | Tunisia | 1956- | |
| TT- | F-O | Chad | 1960- | |
| TU- | F-O | Cote D'Ivoire | 1960- | |
| TY- | F-O | Benin | 1960- | |
| TZ- | F-O | Mali | 1960- | |
| UK- | CCCP- | Uzbekistan | | |
| UN- | CCCP- | Kazakhstan | | |
| UP- | CCCP- | Kazakhstan | 2008- | |
| UR- | CCCP- | Ukraine | | |
| V2- | VP-L | Antigua | | |
| V3- | VP-H | Belize | | |
| V4- | VP-LKA-LLZ | St. Kitts and Nevis | | |
| V5- | | Namibia | | |
| V7- | | Marshall Islands | | |
| V8- | VR-U | Brunei | | |
| VH- | | Australia | 1929- | |
| VN- | XV- | Vietnam | | |
| VP-B, VQ-B | VR-B | Bermuda | | |
| VP-C | VR-C | Cayman Islands | | |
| VP-F | | Falkland Islands | 1929- | |
| VP-LMA-LUZ | | Montserrat | | |
| VP-LV | | British Virgin Islands | 1971- | |
| VQ-H | | St. Helena | 1929- | |
| VQ-T | | Turks and Caicos Islands | | |
| VT- | | India | 1930- | |
| XA- | | Mexico | 1929- | Commercial |
| XB- | | Mexico | 1929- | Private |
| XC- | | Mexico | 1929- | Government |
| XT- | F-O | Burkina Faso | | |
| XU- | F-KH, KW- | Cambodia | 1979- | Formerly Kampuchea |
| XY- | | Myanmar | 1948- | |
| XZ- | | Myanmar | | |
| YA- | | Afghanistan | 1929- | |
| YI- | | Iraq | 1931- | |
| YJ- | | Vanuatu | 1929- | |
| YK- | | Syria | 1952- | |
| YL- | | Latvia | | |
| YN- | AN- | Nicaragua | | |
| YR- | CV- | Romania | 1936- | |
| YS- | | El Salvador | 1939- | |
| YU- | UN- | Serbria | 1935- | Formerly Yugoslavia, then Formerly Serbia and Montenegro |
| YV- | | Venezuela | 1931- | |
| Z- | VP-W, VP-Y | Zimbabwe | | |
| Z3- | | Macedonia | | |
| ZA- | | Albania | 1946- | |
| ZJ- | | Jersey | 2015- | |
| ZK- | | New Zealand | 1929- | |
| ZL- | | New Zealand | | |
| ZP- | | Paraguay | 1929- | |
| ZS- | | South Africa | 1929- | |
| ZT- | | South Africa | | |
| ZU- | | South Africa | | |
| 2- | | Guernsey | 2013- | |
| 3A- | CZ, MC | Monaco | 1959- | |
| 3B- | VQ-M | Mauritius | 1968- | |
| 3C- | VQ-ZI | Equatorial Guinea | 1975- | |
| 3D- | | Swaziland | 1975- | |
| 3X- | F-O | Guinea | 1958- | |
| 4K- | | Azerbaijan | | |
| 4L- | | Georgia | | |
| 4O- | | Montenegro | 2008- | |
| 4R- | VP-C, CY- | Sri Lanka | 1954- | |
| 4X- | | Israel | 1948 | |
| 5A- | | Libya | 1951- | |
| 5B- | VQ-C | Cyprus | 1960- | |
| 5H- | VP-Z | Tanzania | 1964- | |
| 5N- | VR-N | Nigeria | 1961- | |
| 5R- | F-O | Madagascar | 1960- | |
| 5T- | F-O | Mauritania | 1960- | |
| 5U- | F-O | Niger | 1960- | |
| 5V- | | Togo | 1976- | |
| 5W- | | Samoa | 1962- | |
| 5X- | VP-U | Uganda | 1962- | |
| 5Y- | VP-K | Kenya | 1963- | |
| 6O- | 6OS- | Somalia | 1969- | |
| 6V- | F-O | Senegal | 1960- | |
| 6W- | | Senegal | 1960- | (Military) |
| 6Y- | VP-J | Jamaica | 1964- | |
| 7O- | YE-, 4W- | Yemen | 1974- | |
| 7P- | VQ-ZA,-ZD | Lesotho | 1967- | |
| 7Q- | VP-Y | Malawi | 1964- | |
| 7T- | F-O | Algeria | 1962- | |
| 8P- | VQ-B | Barbados | 1968- | |
| 8Q- | | Maldives | 1976- | |
| 8R- | VP-G | Guyana | 1967- | |
| 9A- | RC- | Croatia | | |
| 9G- | VP-A | Ghana | 1957- | |
| 9H- | VP-M | Malta | 1968- | |
| 9J- | VP-Y | Zambia | 1964- | |
| 9K- | K- | Kuwait | 1961- | |
| 9L- | VR-L | Sierra Leone | 1961 | |
| 9M- | VR-J, VR-O, VR-R | Malaysia | 1963- | |
| 9N- | | Nepal | 1961- | |
| 9Q- | 9O- | Zaire | 1966- | |
| 9U- | BR- | Burundi | 1962- | |
| 9V- | VR-S | Singapore | 1970- | |
| 9XR- | | Rwanda | 1962 | |
| 9Y- | VP-T | Trinidad and Tobago | 1965- | |