List of the oldest currently registered Internet domain names

This is a list of the oldest extant registered generic top-level domains used in the Domain Name System of the Internet.
Until 1986, Domain Registration was limited to organizations with access to ARPANET. The possibility of registration of UUCPNET, BITNET and CSNET hosts was announced in February 1986.

.edu

Registration within.edu is restricted to accredited educational institutions. Prior to October 2001, registration was available worldwide; it has since been limited to institutions based in the United States.

Rank	Date of registration	Domain	Registered to
0		darpa.edu	DARPA
1		berkeley.edu	University of California, Berkeley
1		cmu.edu	Carnegie Mellon University
1		purdue.edu	Purdue University
1		rice.edu	Rice University
1		ucla.edu	University of California, Los Angeles
6		rutgers.edu	Rutgers University
7		mit.edu	Massachusetts Institute of Technology
8		harvard.edu	Harvard University
9		columbia.edu	Columbia University
10		cornell.edu	Cornell University
11		uiuc.edu	University of Illinois at Urbana–Champaign
12		udel.edu	University of Delaware
13		umd.edu	University of Maryland, College Park
14		utexas.edu	University of Texas at Austin
15		usc.edu	University of Southern California
16		wisc.edu	University of Wisconsin–Madison
16		uci.edu	University of California, Irvine
18		stanford.edu	Stanford University
19		umich.edu	University of Michigan
20		ucsd.edu	University of California, San Diego
21		caltech.edu	California Institute of Technology
22		arizona.edu	University of Arizona
23		ucsf.edu	University of California, San Francisco
24		dartmouth.edu	Dartmouth College
24		indiana.edu	Indiana University Bloomington
24		okstate.edu	Oklahoma State University
24		unlv.edu	University of Nevada, Las Vegas
24		wfu.edu	Wake Forest University
24		wright.edu	Wright State University
30		isi.edu	Information Sciences Institute
31		ucdavis.edu	University of California, Davis
31		uta.edu	University of Texas at Arlington
31		virginia.edu	University of Virginia
34		ufl.edu	University of Florida
34		bu.edu	Boston University
34		rpi.edu	Rensselaer Polytechnic Institute
34		umass.edu	University of Massachusetts
34		northeastern.edu	Northeastern University
34		usl.edu	University of Southwestern Louisiana (USL) 1960~1999, then: University of Louisiana at Lafayette
40		gatech.edu	Georgia Institute of Technology
40		toronto.edu	University of Toronto
40		sju.edu	Saint Joseph's University
40		uab.edu	University of Alabama at Birmingham
44		carleton.edu	Carleton College
44		duke.edu	Duke University
44		upenn.edu	University of Pennsylvania
44		emory.edu	Emory University
44		bgsu.edu	Bowling Green State University
44		colorado.edu	University of Colorado Boulder
50		unc.edu	University of North Carolina at Chapel Hill
51		usd.edu	University of South Dakota
51		uwp.edu	University of Wisconsin–Parkside
51		wellesley.edu	Wellesley College
51		wku.edu	Western Kentucky University
55		psu.edu	Pennsylvania State University
56		brown.edu	Brown University
56		unm.edu	University of New Mexico
58		syr.edu	Syracuse University
58		depaul.edu	DePaul University
60		washington.edu	University of Washington
60		wcslc.edu	Westminster College
62		moravian.edu	Moravian College
62		unt.edu	University of North Texas
62		usf.edu	University of South Florida
62		williams.edu	Williams College
66		merit.edu	Merit Network
67		nyu.edu	New York University
68		rochester.edu	University of Rochester
69		unh.edu	University of New Hampshire
69		ucf.edu	University of Central Florida
69		hawaii.edu	University of Hawaii
69		csufresno.edu	California State University, Fresno
73		georgetown.edu	Georgetown University
73		muskingum.edu	Muskingum University
73		odu.edu	Old Dominion University
76		usma.edu	United [States Military Academy]
77		clarkson.edu	Clarkson University
78		oberlin.edu	Oberlin College
78		ohiou.edu	Ohio University
78		unr.edu	University of Nevada, Reno
81		utah.edu	University of Utah
82		byu.edu	Brigham Young University
82		lsu.edu	Louisiana State University
84		umn.edu	University of Minnesota
85		ucsc.edu	University of California, Santa Cruz
86		bsu.edu	Ball State University
86		csuchico.edu	California State University, Chico
86		kent.edu	Kent State University
86		clemson.edu	Clemson University
90		albany.edu	University at Albany
91		whoi.edu	Woods Hole Oceanographic Institution
92		mu.edu	Marquette University
93		yale.edu	Yale University
94		jhu.edu	Johns Hopkins University
95		rockefeller.edu	The Rockefeller University
96		princeton.edu	Princeton University
97		yu.edu	Yeshiva University
98		wsu.edu	Washington State University
98		wwu.edu	Western Washington University
98		uvm.edu	University of Vermont
98		tulane.edu	Tulane University

.mil

Rank	Date of registration	Domain	Registered to
0		mil	Defense Data Network

.gov

Rank	Date of registration	Domain	Registered to
0		gov	DARPA
1	June 1985	css.gov	Central Security Service

.int

Rank	Date of registration	Domain	Registered to
0		int	Internet Assigned Numbers Authority
1		ffa.int	Pacific Islands Forum Fisheries Agency
2		ip6.int	Internet Assigned Numbers Authority
3		commonwealth.int	Commonwealth of Nations
3		nsap.int	Internet Assigned Numbers Authority
3		ymca.int	Young Men's Christian Association
6		itu.int	International Telecommunication Union
6		reliefweb.int	ReliefWeb
8		tpc.int	The Phone Company
9		adsn.int	Internet Assigned Numbers Authority
10		cto.int	Commonwealth Telecommunications Organisation
11		esa.int	European Space Agency
12		wipo.int	World Intellectual Property Organization
13		ohr.int	Office of the High Representative in Bosnia and Herzegovina
14		iai.int	Inter-American Institute for Global Change Research
15		sadc.int	Southern African Development Community
16		ecb.int	European Central Bank
17		eu.int	European Union
18		oie.int	World Organisation for Animal Health
19		iom.int	International Organisation for Migration
20		interpol.int	International Criminal Police Organization
21		un.int	United Nations
22		comesa.int	Common Market for Eastern and Southern Africa
23		nato.int	North Atlantic Treaty Organization
24		ices.int	International Council for the Exploration of the Sea
25		weu.int	Western European Union
26		ecmwf.int	European Centre for Medium-Range Weather Forecasts
27		coe.int	Council of Europe
28		efta.int	European Free Trade Association
29		upov.int	International Union for the Protection of New Varieties of Plants
30		idea.int	International Institute for Democracy and Electoral Assistance
31		iaea.int	International Atomic Energy Agency
31		icao.int	International Civil Aviation Organization
31		upu.int	Universal Postal Union
34		who.int	World Health Organisation
35		bceao.int	Central Bank of West African States
35		emep.int	Convention on Long-Range Transboundary Air Pollution
35		idb.int	Inter-American Development Bank
35		iic.int	Inter-American Investment Corporation
39		uemoa.int	West African Economic and Monetary Union
39		unccd.int	United Nations Convention to Combat Desertification
41		apnic.int	Asia-Pacific Network Information Centre
41		atma.int	Internet Assigned Numbers Authority
41		basel.int	Basel Convention
41		beac.int	Bank of Central African States
41		ecowas.int	Economic Community of West African States
41		era.int	Academy of European Law
41		eurocontrol.int	European Organisation for the Safety of Air Navigation
41		ilo.int	International Labour Organization
41		inbar.int	International Network for Bamboo and Rattan
41		ippc.int	International Plant Protection Convention
41		issa.int	International Social Security Association
41		ivi.int	International Vaccine Institute
41		kedo.int	Internet Assigned Numbers Authority
41		nasco.int	North Atlantic Salmon Conservation Organization
41		nato-pa.int	NATO Parliamentary Assembly
41		nib.int	Nordic Investment Bank
41		oecd.int	Organisation for Economic Co-Operation and Development
41		oiv.int	International Organisation of Vine and Wine
41		pic.int	Rotterdam Convention
41		pices.int	North Pacific Marine Science Organization
41		redcross.int	International Federation of Red Cross and Red Crescent Societies
41		spc.int	Pacific Community
41		unesco.int	United Nations Education, Scientific and Cultural Organization
41		unfccc.int	United Nations Framework Convention on Climate Change
41		worldbank.int	The World Bank
41		wto.int	World Trade Organization
67		ifad.int	International Fund for Agricultural Development
67		iica.int	Inter-American Institute for Cooperation on Agriculture
69		eumetsat.int	European Organisation for the Exploitation of Meteorological Satellites
69		wmo.int	World Meteorological Organization
71		itso.int	International Telecommunications Satellite Organization
72		oas.int	Organization of American States
73		cde.int	Centre for the Development of Enterprise
73		cta.int	Technical Centre for Agricultural and Rural Cooperation ACP-EU
73		ectel.int	Eastern Caribbean Telecommunications Authority
76		eurofish.int	Eurofish
77		stcu.int	Science and Technology Center in Ukraine
78		pops.int	Stockholm Convention on Persistent Organic Pollutants
79		idlo.int	International Development Law Organization
80		eftasurv.int	European Free Trade Association Surveillance Authority
81		las.int	League of Arab States
82		eac.int	East African Community
83		icc-cpi.int	International Criminal Court
84		col.int	The Commonwealth of Learning
85		cbd.int	Convention on Biological Diversity
86		iccat.int	International Commission for the Conservation of Atlantic Tunas
86		oiml.int	International Organization of Legal Metrology
88		epo.int	European Patent Office
88		eutelsatigo.int	European Telecommunications Satellite Organization
88		nafo.int	Northwest Atlantic Fisheries Organization
91		mercosur.int	Southern Common Market
92		acp.int	African, Caribbean and Pacific Group of States
92		cms.int	Convention on the Conservation of Migratory Species of Wild Animals
94		glfc.int	Great Lakes Fishery Commission
95		ctbto.int	Preparatory Commission for the Comprehensive Nuclear-Test-Ban
96		apt.int	Asia-Pacific Telecommunity
97		cospas-sarsat.int	International Cospas-Sarsat Programme
98		iho.int	International Hydrographic Organization
99		cedare.int	Centre for Environment and Development for the Arab Region and Europe
100		sica.int	Central American Integration System