আইএসও ৩১৬৬-১ আলফা-৩

• XOM is used to represent the Sovereign Military Order of Malta
• XXA is used to represent a stateless person, as defined in Article 1 of the 1954 Convention Relating to the Status of Stateless Persons
• XXB is used to represent a refugee, as defined in Article 1 of the 1951 Convention Relating to the Status of Refugees as amended by the 1967 Protocol
• XXC is used to represent a refugee, other than as defined above
• XXX is used to represent a person of unspecified nationality

• ASC Ascension Island — Reserved on request of UPU, also used by ITU
• CPT Clipperton Island — Reserved on request of ITU
• DGA Diego Garcia — Reserved on request of ITU
• FXX France, Metropolitan — Reserved on request of France; Officially assigned before deleted from ISO 3166-1
• SUN USSR — From June 2008; Transitionally reserved from September 1992; Officially assigned before deleted from ISO 3166-1
• TAA Tristan da Cunha — Reserved on request of UPU

The following alpha-3 codes were previously exceptionally reserved, but are now officially assigned:

• GGY Guernsey — Reserved on request of UPU
• IMN Isle of Man — Reserved on request of UPU
• JEY Jersey — Reserved on request of UPU

• ANT Netherlands Antilles — From December 2010
• BUR Burma — From December 1989
• BYS Byelorussian SSR — From June 1992
• CSK Czechoslovakia — From June 1993
• NTZ Neutral Zone — From July 1993
• ROM Romania — From February 2002; Code changed to ROU^[১]
• SCG Serbia and Montenegro — From September 2006
• TMP East Timor — From May 2002
• YUG Yugoslavia — From July 2003
• ZAR Zaire — From July 1997

The following alpha-3 code was previously indeterminately reserved, but has been reassigned to another country as its official code:

• ROU Uruguay — Code reassigned to Romania

In addition, the ISO 3166/MA will not use the following alpha-3 codes at the present stage, as they are used in ISO/IEC 7501-1 for special machine-readable passports:

• GBD একটি ব্রিটিশ পাসপোর্ট ধারক যিনি শনাক্ত British Overseas Territories Citizen
• GBN একটি ব্রিটিশ পাসপোর্ট ধারক যিনি শনাক্ত British National (Overseas)
• GBO একটি ব্রিটিশ পাসপোর্ট ধারক যিনি শনাক্ত British Overseas Citizen
• GBP একটি ব্রিটিশ পাসপোর্ট ধারক যিনি শনাক্ত British Protected Person
• GBS একটি ব্রিটিশ পাসপোর্ট ধারক যিনি শনাক্ত British Subject
• UNA is used as a substitute for nationality where the holder is an Official of a Specialized Agency of the UN Organization
• UNK identifies Kosovo residents to whom travel documents were issued by the United Nations Interim Administration in Kosovo (UNMIK)
• UNO is used to designate the UN Organization as the issuer and used as a substitute for nationality where the holder is an Official of the UN Organization

• List of IOC country codes, used by the International Olympic Committee (IOC)
• List of FIFA country codes, used by the Fédération Internationale de Football Association (FIFA)
• Comparison of IOC, FIFA, and ISO 3166 country codes

• ISO 3166 Maintenance Agency, International Organization for Standardization (ISO)
  • Reserved code elements under ISO 3166-1 "Codes for the representation of names of countries and their subdivisions – Part 1: Country codes", available on request from ISO 3166/MA
• Standard Country or Area Codes for Statistical Use, United Nations Statistics Division
  • Countries or areas, codes and abbreviations — list of alpha-3 and numeric codes (a few territories officially assigned codes in ISO 3166-1 are not included in this list)
• The World Factbook (public domain), Central Intelligence Agency
  • Appendix D – Cross-Reference List of Country Data Codes ওয়েব্যাক মেশিনে আর্কাইভকৃত ১৩ নভেম্বর ২০২০ তারিখে — comparison of FIPS 10, ISO 3166, and STANAG 1059 country codes
• Administrative Divisions of Countries ("Statoids"), Statoids.com
  • Country codes — comparison of ISO 3166-1 country codes with other country codes
  • ISO 3166-1 Change History