Turkey TU TR TUR 792 TUR .tr
Turkmenistan TX TM TKM 795 TKM .tm
Turks and
Caicos Islands TK TC TCA 796 TCA .tc
Tuvalu TV TV TUV 798 TUV .tv
Uganda UG UG UGA 800 UGA .ug
Ukraine UP UA UKR 804 UKR .ua
United Arab
Emirates AE AE ARE 784 ARE .ae
United Kingdom UK GB GBR 826 GBR .uk
United States US US USA 840 USA .us
United States Minor
Outlying Islands - UM UMI 581 - .um
ISO includes Baker Island, Howland Island, Jarvis Island,
Johnston Atoll, Kingman Reef, Midway Islands, Navassa Island,
Palmyra Atoll, Wake Island
Uruguay UY UY URY 858 URY .uy
Uzbekistan UZ UZ UZB 860 UZB .uz
Vanuatu NH VU VUT 548 VUT .vu
Venezuela VE VE VEN 862 VEN .ve
Vietnam VM VN VNM 704 VNM .vn
Virgin Islands VQ VI VIR 850 VIR .vi
Virgin Islands (UK) - - - - - .vg
see British Virgin Islands
Virgin Islands (US) - - - - - .vi
see Virgin Islands
Wake Island WQ - - - UMI -
ISO includes with the US Minor Outlying Islands
Wallis and Futuna WF WF WLF 876 WLF .wf
West Bank WE PS PSE 275 PSE .ps
ISO identifies as Occupied Palestinian Territory
Western Sahara WI EH ESH 732 ESH .eh
Western Samoa - - - - - .ws
see Samoa
World - - - - - -
the Factbook uses the W data code from DIAM 65-18 Geopolitical
Data Elements and Related Features, Data Standard No. 3, December
1994, published by the Defense Intelligence Agency
Yemen YM YE YEM 887 YEM .ye
Zaire - - - - - -
see Democratic Republic of the Congo
Zambia ZA ZM ZMB 894 ZMB .zm
Zimbabwe ZI ZW ZWE 716 ZWE .zw
This page was last updated on 18 December, 2008
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ference List of Hydrographic Data Codes
IHO 23-4th: Limits of Oceans and Seas, Special Publication 23, Draft
4th Edition 1986, published by the International Hydrographic Bureau of
the International Hydrographic Organization; note - this document has
not yet been ratified and only the 3rd Edition (1953) remains in force
IHO 23-3rd: Limits of Oceans and Seas, Special Publication 23, 3rd
Edition 1953, published by the International Hydrographic Organization
ACIC M 49-1: Chart of Limits of Seas and Oceans, revised January 1958,
published by the Aeronautical Chart and Information Center (ACIC),
United States Air Force; note - ACIC is now part of the National
Imagery and Mapping Agency (NIMA)
DIAM 65-18: Geopolitical Data Elements and Related Features, Data
Standard No. 4, Defense Intelligence Agency Manual 65-18, December
1994, published by the Defense Intelligence Agency
The US Government has not yet adopted a standard for hydrographic codes
similar to the Federal Information Processing Standards (FIPS) 10-4
country codes. The names and limits of the following oceans and seas
are not always directly comparable because of differences in the
customers, needs, and requirements of the individual organizations.
Even the number of principal water bodies varies from organization to
organization. Factbook users, for example, find the Atlantic Ocean and
Pacific Ocean entries useful, but none of the following standards
include those oceans in their entirety. Nor is there any provision for
combining codes or overcodes to aggregate water bodies. The recently
delimited Southern Ocean is not included.
Principal Oceans and Seas of the World
With Hydrographic Codes by Institution
IHO 23-4th IHO 23-3rd* ACIC M 49-1 DIAM 65-18
Arctic Ocean 9 17 A 5A
Atlantic Ocean - - - -
Baltic Sea 2 1 B26 7B
Eastern Mediterranean 3.1.2 28 B - 8E
Indian Ocean 5 45 F 6A
Mediterranean Sea 3.1 28 B11 -
North Atlantic Ocean 1 23 B 1A
North Pacific Ocean 7 57 D 3A
Pacific Ocean - - - -
South Atlantic Ocean 4 32 C 2A
South China and Eastern
Archipelagic Seas 6 49, 48 D18 plus 3U plus
others others
South Pacific Ocean 8 61 E 4A
Western Mediterranean 3.1.1 28 A - 8W
*The letters after the numbers are subdivisions, not footnotes.
This page was last updated on 18 December, 2008
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Appendix F - Cross-Reference List of Geographic Names
Name Entry in The Latitude Longitude
World Factbook (deg min) (deg min)