| Country | ISO Code | Count | |
|---|---|---|---|
| Aleutian Isl, Hawaiian Isl, United States | US | 1715 | |
| Bolivia | BO | 1339 | |
| Paraguay | PY | 932 | |
| Peru | PE | 587 | |
| Madagascar | MG | 459 | |
| Mexico | MX | 426 | |
| Ecuador | EC | 329 | |
| Gabon | GA | 314 | |
| Argentina | AR | 307 | |
| Cameroon | CM | 233 | |
| Nicaragua | NI | 200 | |
| Ethiopia | ET | 182 | |
| Tanzania | TZ | 129 | |
| Brazil | BR | 122 | |
| Costa Rica | CR | 110 | |
| El Salvador | SV | 64 | |
| Colombia | CO | 62 | |
| Guinea | GN | 59 | |
| São Tomé and Príncipe, Principe (do not use), Sao Tome (do not use) | ST | 52 | |
| Central African Republic | CF | 47 | |
| Venezuela | VE | 47 | |
| Zaire (please use Democratic Republic of the Congo), Congo (Kinshasa). This is now Democratic Republic of the Congo, Democratic Republic of the Congo | CD | 46 | |
| Marion-Prince Edward Isl, South Africa | ZA | 42 | |
| Ghana | GH | 39 | |
| Guatemala | GT | 35 | |
| Caribbean | JM | 35 | |
| Panama | PA | 34 | |
| Comoros | KM | 30 | |
| Uganda | UG | 29 | |
| Ivory Coast | CI | 25 | |
| Malawi | MW | 23 | |
| Honduras | HN | 20 | |
| New Caledonia | NC | 20 | |
| Benin | BJ | 19 | |
| Belize | BZ | 18 | |
| Togo | TG | 17 | |
| Vietnam | VN | 15 | |
| Kenya | KE | 13 | |
| Nigeria | NG | 12 | |
| Puerto Rico | PR | 11 | |
| Cuba | CU | 10 | |
| Uruguay | UY | 9 | |
| Mayotte | YT | 9 | |
| Suriname | SR | 8 | |
| Burundi | BI | 8 | |
| Indonesia, Irian Jaya, Java, Moluccas, Sulawesi, Sumatra | ID | 7 | |
| Senegal | SN | 7 | |
| Turkmenistan | TM | 7 | |
| Liberia | LR | 7 | |
| Andaman Isl, Assam, India | IN | 6 | |
| Republic of the Congo | CG | 6 | |
| Guyana | GY | 5 | |
| Bioko, Equatorial Guinea, Pagalu (Annobon) | GQ | 5 | |
| French Guiana | GF | 5 | |
| Niger | NE | 5 | |
| Zimbabwe | ZW | 5 | |
| Philippines | PH | 4 | |
| HT | 4 | ||
| Burkina Faso | BF | 4 | |
| Botswana | BW | 3 | |
| DO | 3 | ||
| Somalia | SO | 3 | |
| Sierra Leone | SL | 2 | |
| Thailand | TH | 2 | |
| Cambodia | KH | 2 | |
| Bismarck Archipelago, Bougainville, Papua New Guinea | PG | 2 | |
| Iraq | IQ | 2 | |
| Azerbaijan | AZ | 2 | |
| China | CN | 2 | |
| Zambia | ZM | 2 | |
| Vanuatu | VU | 2 | |
| VI | 2 | ||
| BL | 1 | ||
| Iran | IR | 1 | |
| Republic of Georgia | GE | 1 | |
| Taiwan | TW | 1 | |
| Russian Federation | RU | 1 | |
| Total | 8353 |