| 550-65 | Afghanistan | 550-50 | Khmer Republic (Cambodia) |
| 550-98 | Albania | 550-81 | Korea, North |
| 550-44 | Algeria | 550-41 | Korea, Republic of |
| 550-59 | Angola | 550-58 | Laos |
| 550-73 | Argentina | 550-24 | Lebanon |
| 550-66 | Bolivia | 550-38 | Liberia |
| 550-20 | Brazil | 550-85 | Libya |
| 550-168 | Bulgaria | 550-163 | Malagasy Republic |
| 550-61 | Burma | 550-45 | Malaysia |
| 550-83 | Burundi | 550-161 | Mauritania |
| 550-166 | Cameroon | 550-79 | Mexico |
| 550-96 | Ceylon | 550-76 | Mongolia |
| 550-159 | Chad | 550-49 | Morocco |
| 550-77 | Chile | 550-64 | Mozambique |
| 550-60 | China, People's Rep. of | 550-35 | Nepal, Bhutan and Sikkim |
| 550-63 | China, Rep. of | 550-88 | Nicaragua |
| 550-26 | Colombia | 550-157 | Nigeria |
| 550-67 | Congo, Democratic Rep. of | 550-94 | Oceania |
| | (Zaire) | 550-48 | Pakistan |
| 550-91 | Congo, People's Rep. of | 550-46 | Panama |
| 550-90 | Costa Rica | 550-156 | Paraguay |
| 550-152 | Cuba | 550-92 | Peripheral States of the |
| 550-22 | Cyprus | | Arabian Peninsula |
| 550-158 | Czechoslovakia | 550-42 | Peru |
| 550-54 | Dominican Republic | 550-72 | Philippines |
| 550-155 | East Germany | 550-162 | Poland |
| 550-52 | Ecuador | 550-160 | Romania |
| 550-150 | El Salvador | 550-84 | Rwanda |
| 550-28 | Ethiopia | 550-51 | Saudi Arabia |
| 550-167 | Finland | 550-70 | Senegal |
| 550-29 | Germany | 550-86 | Somalia |
| 550-153 | Ghana | 550-93 | South Africa, Republic of |
| 550-87 | Greece | 550-05 | Soviet Union |
| 550-78 | Guatemala | 550-27 | Sudan, Democratic Republic |
| 550-82 | Guyana | | of |
| 550-164 | Haiti | 550-47 | Syria |
| 550-151 | Honduras | 550-62 | Tanzania |
| 550-165 | Hungary | 550-53 | Thailand |
| 550-21 | India | 550-89 | Tunisia |
| 550-154 | Indian Ocean Territories | 550-80 | Turkey |
| 550-39 | Indonesia | 550-74 | Uganda |
| 550-68 | Iran | 550-43 | United Arab Republic (Egypt) |
| 550-31 | Iraq | 550-97 | Uruguay |
| 550-25 | Israel | 550-71 | Venezuela |
| 550-69 | Ivory Coast | 550-71 | Vietnam, North |
| 550-30 | Japan | 550-55 | Vietnam, South |
| 550-34 | Jordan | 550-99 | Yugoslavia |
| 550-56 | Kenya | 550-75 | Zambia |