ISO 3166-1 numeric
ISO 3166-1 numeric codes are three-digit country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization, to represent countries, dependent territories, and special areas of geographical interest. They are similar to the three-digit country codes developed and maintained by the United Nations Statistics Division, from which they originate in its UN M.49 standard. They were first included as part of the ISO 3166 standard in its second edition in 1981, but they were released by the United Nations Statistics Division since as early as 1970.
An advantage of numeric codes over alphabetic codes is script independence. The ISO 3166-1 alphabetic codes use letters from the 26-letter English alphabet and are suitable for languages based on the Latin alphabet. For people and systems using non-Latin scripts, the English alphabet may be unavailable or difficult to use, understand, or correctly interpret. While numeric codes overcome the problems of script dependence, this independence comes at the cost of loss of mnemonic convenience.
Another advantage is that when countries merge or split, they will get a new numeric code, while the alphabetic code stays in use for that country. A persistent number is needed in datasets with historical country information.
Current codes
Officially assigned code elements
The following is a complete list of the current officially assigned ISO 3166-1 numeric codes, using a title case version of the English short names officially used by the ISO 3166 Maintenance Agency :User-assigned code elements
User-assigned code elements are codes at the disposal of users who need to add further names of countries, territories, or other geographical entities to their in-house application of ISO 3166-1. The ISO 3166/MA will never use these codes in the updating process of the standard. The numeric codes to can be user-assigned.Examples include for Kosovo and for Cyprus used by Dun & Bradstreet.
Withdrawn codes
When countries merge, split, or undergo territorial change, their numeric codes are withdrawn and new numeric codes are assigned. For example:- East Germany and West Germany used numeric codes and respectively before their unification in 1990. Since then, the unified Germany has used numeric code, while keeping the alphabetic codes for West Germany.
- Ethiopia used numeric code before Eritrea split away in 1993. Since then, Ethiopia has used numeric code, while keeping the same alphabetic codes.
- Sudan used numeric code before South Sudan split away in 2011. Since then, Sudan has used numeric code, while keeping the same alphabetic codes.
The following numeric codes have been withdrawn from ISO 3166-1:
| Code | Country name | Notes |
| Canton and Enderbury Islands | ||
| Czechoslovakia | ||
| Dronning Maud Land | ||
| Ethiopia | before Eritrea split away in 1993 | |
| France, Metropolitan | ||
| German Democratic Republic | i.e., East Germany | |
| Germany, Federal Republic of | i.e., West Germany | |
| Johnston Island | ||
| Midway Islands | ||
| Netherlands Antilles | after Aruba split away in 1986 | |
| Netherlands Antilles | before Aruba split away in 1986 | |
| Neutral Zone | ||
| Pacific Islands (Trust Territory) | ||
| Panama | before adding Panama Canal Zone in 1979 | |
| Saint Kitts-Nevis-Anguilla | ||
| Yemen, Democratic | i.e., South Yemen | |
| Sudan | before South Sudan split away in 2011 | |
| USSR | ||
| United States Miscellaneous Pacific Islands | ||
| Wake Island | ||
| Yemen Arab Republic | i.e., North Yemen | |
| Yugoslavia, Socialist Federal Republic of | ||
| Serbia and Montenegro | original name: Yugoslavia, Federal Republic of |
The following numeric codes were also assigned by the United Nations Statistics Division, but these territories were never officially included in ISO 3166-1:
| Code | Territory name |
| Gaza Strip (Palestine) | |
| German Democratic Republic, Berlin | |
| Germany, West Berlin | |
| Ryukyu Islands | |
| Spanish North Africa | |
| Channel Islands |
In the UN M.49 standard developed by the United Nations Statistics Division, additional numeric codes are used to represent geographical regions and groupings of countries and areas for statistical processing purposes, but these codes are not included in ISO 3166-1. Unlike alphabetic codes, there are no reserved numeric codes in ISO 3166-1.