When countries merge, split, or undergo territorial change, their numeric codes are withdrawn and new numeric codes are assigned.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 (except in the banking area where they still use the code). •
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. If a country changes its name without any territorial change, its numeric code remains the same. For example, when
Burma was renamed Myanmar without territorial change in 1989, its alphabetic codes were changed, but its numeric code has remained the same. The following numeric codes have been withdrawn from ISO 3166-1: The following numeric codes were also assigned by the United Nations Statistics Division, but these territories were never officially included in ISO 3166-1: 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. ==References==