ISO 3166-3

ISO 3166-3 defines codes for outdated ISO 3166-1 country codes and is part of the ISO 3166 standard published by the International Organization for Standardization (ISO). The official name of the standard is Codes for the representation of names of countries and their subdivisions – Part 3: Code for formerly used names of countries. It was first published in 1999.

ISO 3166-3 contains an entry for each formerly used country name whose codes were withdrawn from ISO 3166 since the first edition was published in 1974, and assigns a four-character alphabetic code for each entry. The first two characters are the withdrawn ISO 3166-1 alpha-2 code of the country, while the last two characters are allocated according to following rules:

• If the country changed its name, the new ISO 3166-1 alpha-2 code is used (e.g., Burma changed its name to Myanmar, whose new code is MM), or the code AA is used if the alpha-2 code is not changed (e.g., Byelorussian S.S.R. changed its name to Belarus, and its alpha-2 code is not changed).
• If the country merged into an existing country, the ISO 3166-1 alpha-2 code of this country is used (e.g., German Democratic Republic merged into Germany, whose code is DE).
• If the country split up into several parts, the special code HH is used to indicate that there is no single successor code, with the exception of Serbia and Montenegro, which uses XX to avoid confusion with Czechoslovakia, since the same code CS was assigned to the two countries during different periods.

Current codes

Following is a list of current ISO 3166-3 codes. For each entry, the ISO 3166-3 four-letter code is given first, followed by the former country name, its original code elements (alpha-2, alpha-3, numeric), their period of validity, and finally any related notes.

Once five years have passed from the time of withdrawal, the two-letter code is free to be reassigned, as has been done with AI, CS, GE, and SK. However, some of the two-letter codes remain transitionally reserved for a longer period.

Many of the two-letter codes were withdrawn before the introduction of the domain name system, and so were never used for the Internet's country code top-level domains (ccTLDs). However, some ccTLDs using withdrawn codes are still currently active, such as .su, .tp, and .yu.

The alpha-2 code CS had been withdrawn twice, the first time due to the split of Czechoslovakia and the second time due to the split of Serbia and Montenegro. On 2006-09-26 (Newsletter I-4), the code CSHH was assigned to Serbia and Montenegro, even though it had already been used for Czechoslovakia. To avoid confusion, since 2006-12-01 (Newsletter I-5), the code CSXX is used for Serbia and Montenegro.

If the country only changed its name without any territorial changes, its numeric code remains the same.

ISO 3166-3 code	Former country name	Former code elements	Period of validity	Notes
AIDJ	French Afar and Issas	AI, AFI, 262	1974–1977	Changed its name to Djibouti (DJ, DJI, 262) AI has been reassigned to Anguilla
BQAQ	British Antarctic Territory	BQ, ATB, 080	1974–1979	Merged into Antarctica (AQ, ATA, 010)
BUMM	Burma	BU, BUR, 104	1974–1989	Changed its name to Myanmar (MM, MMR, 104) BU is currently transitionally reserved
BYAA	Byelorussian S.S.R.	BY, BYS, 112	1974–1992	Changed its name to Belarus (BY, BLR, 112)
CSHH	Czechoslovakia	CS, CSK, 200	1974–1993	Split up into Czech Republic (CZ, CZE, 203) and Slovakia (SK, SVK, 703) CS was reassigned to Serbia and Montenegro until its split in 2006
CSXX	Serbia and Montenegro	CS, SCG, 891	2003–2006	Alphabetical codes taken from "Srbija i Crna Gora", its Serbian name Split up into Montenegro (ME, MNE, 499) and Serbia (RS, SRB, 688) CS is currently transitionally reserved
CTKI	Canton and Enderbury Islands	CT, CTE, 128	1974–1984	Merged into Kiribati (KI, KIR, 296)
DDDE	German Democratic Republic	DD, DDR, 278	1974–1990	Alphabetical codes taken from "Deutsche Demokratische Republik", its German name Merged into Germany (DE, DEU, 276)
DYBJ	Dahomey	DY, DHY, 204	1974–1977	Changed its name to Benin (BJ, BEN, 204)
FQHH	French Southern and Antarctic Territories	FQ, ATF, 260	1974–1979	Split up into Adélie Land, which merged into Antarctica (AQ, ATA, 010), and French Southern Territories (TF, ATF, 260)
FXFR	France, Metropolitan	FX, FXX, 249	1993–1997	Merged into France (FR, FRA, 250) FX is currently exceptionally reserved
GEHH	Gilbert and Ellice Islands	GE, GEL, 296	1974–1979	Split up into Kiribati (KI, KIR, 296) and Tuvalu (TV, TUV, 798) GE has been reassigned to Georgia
HVBF	Upper Volta	HV, HVO, 854	1974–1984	Alphabetical codes taken from "Haute-Volta", its French name Changed its name to Burkina Faso (BF, BFA, 854)
JTUM	Johnston Island	JT, JTN, 396	1974–1986	Merged into United States Minor Outlying Islands (UM, UMI, 581)
MIUM	Midway Islands	MI, MID, 488	1974–1986	Merged into United States Minor Outlying Islands (UM, UMI, 581)
NHVU	New Hebrides	NH, NHB, 548	1974–1980	Changed its name to Vanuatu (VU, VUT, 548)
NQAQ	Dronning Maud Land	NQ, ATN, 216	1974–1983	Alphabetical codes taken from "Norwegian Antarctic Territory" Merged into Antarctica (AQ, ATA, 010)
NTHH	Neutral Zone	NT, NTZ, 536	1974–1993	Split up into two parts, which merged into Iraq (IQ, IRQ, 368) and Saudi Arabia (SA, SAU, 682) respectively NT is currently transitionally reserved
PCHH	Pacific Islands, Trust Territory of the	PC, PCI, 582	1974–1986	Split up into Federated States of Micronesia (FM, FSM, 583), Marshall Islands (MH, MHL, 584), Northern Mariana Islands (MP, MNP, 580), and Palau (PW, PLW, 585)
PUUM	U.S. Miscellaneous Pacific Islands	PU, PUS, 849	1974–1986	Consisting of Baker Island, Howland Island, Jarvis Island, Kingman Reef, and Palmyra Atoll Merged into United States Minor Outlying Islands (UM, UMI, 581)
PZPA	Panama Canal Zone	PZ, PCZ, 594	1974–1980	Merged into Panama (PA, PAN, 591)
RHZW	Southern Rhodesia	RH, RHO, 716	1974–1980	Changed its name to Zimbabwe (ZW, ZWE, 716)
SKIN	Sikkim	SK, SKM, 698	1974–1975	Merged into India (IN, IND, 356) SK has been reassigned to Slovakia
SUHH	U.S.S.R.	SU, SUN, 810	1974–1992	Alphabetical codes taken from "Soviet Union" Split up into Armenia (AM, ARM, 051), Azerbaijan (AZ, AZE, 031), Estonia (EE, EST, 233), Georgia (GE, GEO, 268), Kazakhstan (KZ, KAZ, 398), Kyrgyzstan (KG, KGZ, 417), Latvia (LV, LVA, 428), Lithuania (LT, LTU, 440), Republic of Moldova (MD, MDA, 498), Russian Federation (RU, RUS, 643), Tajikistan (TJ, TJK, 762), Turkmenistan (TM, TKM, 795), and Uzbekistan (UZ, UZB, 860) (note: Belarus and Ukraine already had their separate codes) SU is currently transitionally reserved, and still used for the Internet ccTLD .su
TPTL	East Timor	TP, TMP, 626	1974–2002	Alphabetical codes taken from "Portuguese Timor", used by ISO from 1974 to 1977 Changed its name to Timor-Leste (TL, TLS, 626) TP is currently transitionally reserved, and still used for the Internet ccTLD .tp
VDVN	Viet-Nam, Democratic Republic of	VD, VDR, 704	1974–1977	Merged into Viet Nam (VN, VNM, 704)
WKUM	Wake Island	WK, WAK, 872	1974–1986	Merged into United States Minor Outlying Islands (UM, UMI, 581)
YDYE	Yemen, Democratic	YD, YMD, 720	1974–1990	Merged into Yemen (YE, YEM, 887)
YUCS	Yugoslavia	YU, YUG, 891	1974–2003	Used numeric code 890 until 1993 (SFR Yugoslavia) and numeric code 891 from 1993 to 2003 (FR Yugoslavia) Changed its name to Serbia and Montenegro (CS, SCG, 891) YU is currently transitionally reserved, and still used for the Internet ccTLD .yu
ZRCD	Zaire	ZR, ZAR, 180	1974–1997	Changed its name to Democratic Republic of the Congo (CD, COD, 180) ZR is currently transitionally reserved

Updates

Since the first publication of ISO 3166-3 in 1999, five newsletters have been published which announce changes to the standard:

1. ISO 3166-3 Newsletter I-1 – Published 2002-11-15
2. ISO 3166-3 Newsletter I-2 – Published 2002-11-22
3. ISO 3166-3 Newsletter I-3 – Published 2003-07-23
4. ISO 3166-3 Newsletter I-4 – Published 2006-09-26
5. ISO 3166-3 Newsletter I-5 – Published 2006-12-01

External links

• Official page of ISO 3166-3
• Codes to history: Code for formerly used names of countries completes the trilogy of country codes – ISO bulletin explaining ISO 3166-3
• Country codes in ISO 3166 (include withdrawn codes)
• ISO 3166-1 Change History
• http://www.globalfinancialdata.com/gh/GHC_Histories.xls

v • d • e ISO 3166 (codes for the representation of names of countries and their subdivisions) ISO 3166-1 (Country codes) Codes: alpha-2 · alpha-3 · numeric ISO 3166-2 (Country subdivision code) Newsletters: 2000-06-21 (I-1) · 2002-05-21 (I-2) · 2002-08-20 (I-3) · 2002-12-10 (I-4) · 2003-09-05 (I-5) · 2004-03-08 (I-6) · 2005-09-13 (I-7) · 2007-04-17 (I-8) · 2007-11-28 (I-9) ISO 3166-3 (Code for formerly used names of countries)

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