Domain Extensions

This quick guide to Domain Extensions covers more than 270 domain extensions. Through this list, you’ll learn the various g-TLD and cc-TLD extensions, discover their purpose or country of origin, and access a link to their main registry websites.

Extension Country/Purpose Registry Info
AC Ascension Island Network Information Center (AC Domain Registry)
AD Andorra STA Servei de Telecomunicacions d’Andorra
AE United Arab Emirates Telecommunication Regulatory Authority (TRA)
AERO Reserved for members of the air-transport industry Societe Internationale de Telecommunications Aeronautique S.C.
AF Afghanistan Ministry of Communications
AG Antigua and Barbuda UHSA School of Medicine
AI Anguilla Government of Anguilla
AL Albania Telecommunications Regulatory Entity (TRE)
AM Armenia Internet Society
AN Netherlands Antilles University of The Netherlands Antilles
AO Angola Faculdade de Engenharia da Universidade Agostinho Neto
AQ Antarctica Mott and Associates
AR Argentina MRECIC (Ministerio de Relaciones Exteriores, Comercio Internacional y Culto)
AS American Samoa AS Domain Registry
ASIA Restricted to the Pan-Asia and Asia Pacific community DotAsia Organisation Ltd.
AT Austria NIC.AT Internet Verwaltungs und Betriebsgesellschaft m.b.H
AU Australia au Domain Administration (auDA)
AW Aruba SETAR
AX Aland Islands Åands landskapsregering
AZ Azerbaijan IntraNS
BA Bosnia and Herzegovina Universtiy Telinformatic Centre (UTIC)
BB Barbados Government of Barbados Ministry of Economic Affairs and Development Telecommunications Unit
BD Bangladesh Ministry of Post & Telecommunications Bangladesh Secretariate
BE Belgium DNS BE vzw/asbl
BF Burkina Faso DELGI Delegational Generale Informatique
BG Bulgaria Register.BG
BH Bahrain BATELCO
BI Burundi Centre National de l’Informatique
BIZ Generic top-level domain NeuStar, Inc.
BJ Benin Offices des Postes et Telecommunications
BL Saint Barthelemy _TLD not assigned to operator
BM Bermuda Ministry of Labour and Immigration
BN Brunei Darussalam Jabatan Telekom Brunei
BO Bolivia Agencia para el Desarrollo de la Informacióe la Sociedad en Bolivia
BR Brazil Comite Gestor da Internet no Brasil
BS Bahamas The College of the Bahamas
BT Bhutan Ministry of Information and Communications
BV Bouvet Island UNINETT Norid A/S
BW Botswana University of Botswana
BY Belarus The State Centre of Security Information of Belarus Republic
BZ Belize University College of Belize
CA Canada Canadian Internet Registration Authority (CIRA) & Autorite Canadienne pour les Enregistrements Internet (ACEI)
CAT Reserved for the Catalan linguistic and cultural community Fundacio puntCAT
CC Cocos (Keeling) Islands VeriSign Global Registry Services
CD Congo, The Democratic Republic of the NIC Congo – Interpoint SARL
CF Central African Republic Societe Centrafricaine de Telecommunications (SOCATEL)
CG Congo ONPT Congo and Interpoint Switzerland
CH Switzerland SWITCH The Swiss Education & Research Network
CI Cote d’Ivoire INP-HB Institut National Polytechnique Felix Houphouet Boigny
CK Cook Islands Telecom Cook Islands Ltd.
CL Chile NIC Chile (University of Chile)
CM Cameroon Cameroon Telecommunications (CAMTEL)
CN China Chinese Academy of Sciences & The Computer Network Center
CO Colombia Universidad de Los Andes & NIC Colombia
COM Generic top-level domain VeriSign Global Registry Services
COOP Reserved for cooperative associations DotCooperation LLC
CR Costa Rica National Academy of Sciences
CU Cuba CENIAInternet
CV Cape Verde Instituto Superior de Engenharia e Ciencias do Mar
CX Christmas Island Christmas Island Internet Administration Limited
CY Cyprus University of Cyprus
CZ Czech Republic CZ.NIC, z.s.p.o
DE Germany DENIC eG
DJ Djibouti Societe des Telecommunications Internationales de Djibouti (STID)
DK Denmark Dansk Internet Forum
DM Dominica DotDM Corporation
DO Dominican Republic Pontificia Universidad Catolica Madre y Maestra & Recinto Santo Tomas de Aquino
DZ Algeria CERIST
EC Ecuador NIC.EC (NICEC) S.A.
EDU Reserved for post-secondary institutions accredited by an agency on the U.S. Department of Education EDUCAUSE
EE Estonia National Institute of Chemical Physics and Biophysics
EG Egypt Egyptian Universities Network (EUN) Supreme Council of Universities
EH Western Sahara _TLD not assigned to operator
ER Eritrea Eritrea Telcommunication Services Corporation (EriTel)
ES Spain Red.es
ET Ethiopia Ethiopian Telecommunications Corporation
EU European Union EURid vzw/asbl
FI Finland Finnish Communications Regulatory Authority
FJ Fiji The University of the South Pacific
FK Falkland Islands (Malvinas) Falkland Islands Government
FM Micronesia, Federated States of FSM Telecommunications Corporation
FO Faroe Islands FO Council
FR France AFNIC (NIC France) – Immeuble International
GA Gabon Gabon Telecom
GB United Kingdom Reserved Domain – IANA
GD Grenada The National Telecommunications Regulatory Commission (NTRC)
GE Georgia SANET Ltd.
GF French Guiana Net Plus
GG Guernsey Island Networks Ltd.
GH Ghana Network Computer Systems Limited
GI Gibraltar Sapphire Networks
GL Greenland TELE Greenland A/S
GM Gambia GM-NIC
GN Guinea Centre National des Sciences Halieutiques de Boussoura
GOV Reserved exclusively for the United States Government General Services Administration
GP Guadeloupe Networking Technologies Group
GQ Equatorial Guinea GETESA
GR Greece ICS-FORTH GR
GS South Georgia and the South Sandwich Islands Government of South Georgia and South Sandwich Islands (GSGSSI)
GT Guatemala Universidad del Valle de Guatemala
GU Guam University of Guam Computer Center
GW Guinea-Bissau Fundaç IT & MEDIA Universidade de Bissao
GY Guyana University of Guyana
HK Hong Kong Hong Kong Internet Registration Corporation Ltd.
HM Heard Island and McDonald Islands HM Domain Registry
HN Honduras Red de Desarrollo Sostenible Honduras
HR Croatia CARNet – Croatian Academic and Research Network
HT Haiti Consortium FDS/RDDH
HU Hungary Council of Hungarian Internet Providers (CHIP)
ID Indonesia IDNIC-PPAU Mikroelektronika
IE Ireland University College Dublin
IL Israel Internet Society of Israel
IM Isle of Man Isle of Man Government
IN India National Centre for Software Technology
INFO Generic top-level domain Afilias Limited
INT Used only for registering organizations established by international treaties between governments Internet Assigned Numbers Authority
IO British Indian Ocean Territory IO Top Level Domain Registry
IQ Iraq National Communications and Media Commission of Iraq
IR Iran, Islamic Republic of Institute for Studies in Theoretical Physics & Mathematics (IPM)
IS Iceland ISNIC – Internet Iceland ltd.
IT Italy IIT – CNR
JE Jersey Island Networks (Jersey) Ltd.
JM Jamaica University of West Indies
JO Jordan National Information Technology Centre
JOBS Reserved for human resource managers and recruiters. Employ Media LLC
JP Japan Japan Registry Services Co., Ltd.
KE Kenya Kenya Network Information Center (KeNIC)
KG Kyrgyzstan AsiaInfo Telecommunication Enterprise
KH Cambodia Ministry of Post and Telecommunications
KI Kiribati Ministry of Communications, Transport, and Tourism Development
KM Comoros Comores Telecom
KN Saint Kitts and Nevis Ministry of Finance, Sustainable Development Information & Technology
KP Korea, Democratic People’s Republic of Korea Computer Center
KR Korea, Republic of National Internet Development Agency of Korea (NIDA)
KW Kuwait Ministry of Communications
KY Cayman Islands The Information and Communications Technology Authority
KZ Kazakhstan Association of IT Companies of Kazakhstan
LA Lao People’s Democratic Republic Lao National Internet Committee (LANIC) Science Technology and Environment Agency
LB Lebanon American University of Beirut Computing and Networking Services
LC Saint Lucia University of Puerto Rico
LI Liechtenstein Hochschule Liechtenstein
LK Sri Lanka Council for Information Technology
LR Liberia Data Technology Solutions, Inc.
LS Lesotho National University of Lesotho
LT Lithuania Kaunas University of Technology Information Technology Development Institute
LU Luxembourg RESTENA
LV Latvia University of Latvia
LY Libyan Arab Jamahiriya General Post and Telecommunication Company
MA Morocco Agence Nationale de Réementation des Técommunications (ANRT)
MC Monaco Gouvernement de Monaco Direction des Telecommunications
MD Moldova MoldData S.E.
ME Montenegro Government of Montenegro
MF Saint Martin _TLD not assigned to operator
MG Madagascar NIC-MG (Network Information Center Madagascar)
MH Marshall Islands Cabinet Office
MIL Reserved exclusively for the United States Military DoD Network Information Center
MK Macedonia, The Former Yugoslav Republic of Ministry of Foreign Relations
ML Mali SOTELMA
MM Myanmar Ministry of Communications, Posts & Telegraphs
MN Mongolia Datacom Co., Ltd.
MO Macao University of Macau
MOBI Reserved for content to be displayed on mobil devices mTLD Top Level Domain Limited dba dotMobi
MP Northern Mariana Islands Saipan Datacom, Inc.
MQ Martinique SYSTEL
MR Mauritania University of Nouakchott
MS Montserrat Lubimal (MS) Ltd.
MT Malta NIC Malta
MU Mauritius Internet Direct Ltd
MUSEUM Reserved for museums Museum Domain Management Association
MV Maldives Dhiraagu Pvt. Ltd. (DHIVEHINET)
MW Malawi Malawi Sustainable Development Network Programme
MX Mexico NIC-Mexico
MY Malaysia MYNIC Berhad
MZ Mozambique Centro de Informatica de Universidade Eduardo Mondlane
NA Namibia Namibian Network Information Center
NAME Generic top-level domain The Global Name Registry Ltd.
NC New Caledonia Office des Postes et Telecommunications
NE Niger SONITEL
NET Generic top-level domain VeriSign Global Registry Services
NF Norfolk Island Norfolk Island Data Services
NG Nigeria Nigerian Government c/o National Information Technology Development Agency (NITDA)
NI Nicaragua Universidad Nacional del Ingernieria
NL Netherlands Stichting Internet Domeinregistratie Nederland
NO Norway UNINETT Norid A/S
NP Nepal Mercantile Communications Pvt. Ltd.
NR Nauru CENPAC NET
NU Niue Internet Users Society – Niue
NZ New Zealand InternetNZ
OM Oman Oman Telecommunications Company
ORG Generic top-level domain Public Interest Registry (PIR)
PA Panama Panamanian Academic National Network
PE Peru Red Cientifica Peruana
PF French Polynesia Ministè des Postes et Técommunications et des sports, chargées nouvelles technologies de l’information
PG Papua New Guinea PNG DNS Administration
PH Philippines PH Domain Foundation
PK Pakistan PKNIC
PL Poland Research and Academic Computer Network
PM Saint Pierre and Miquelon AFNIC (NIC France) – Immeuble International
PN Pitcairn Pitcairn Island Administration
PR Puerto Rico Gauss Research Laboratory Inc.
PRO Restricted to credentialed professionals and related entities Registry Services Corporation
PS Palestinian Territory, Occupied Ministry Of Telecommunications & Information Technology, Government Computer Center
PT Portugal Fundacao para a Computacao Cientifica Nacional
PW Palau Micronesia Investment and Development Corporation
PY Paraguay NIC-PY
QA Qatar Qatar Telecom (Q-Tel) Q.S.C.
RE Reunion AFNIC (NIC France) – Immeuble International
RO Romania National Institute for R&D in Informatics
RS Serbia Serbian National Register of Internet Domain Names
RU Russian Federation Coordination Center for TLD RU
RW Rwanda NIC Congo – Interpoint SARL
SA Saudi Arabia Communications and Information Technology Commission
SB Solomon Islands Solomon Telekom Company Limited
SC Seychelles VCS Pty Ltd
SD Sudan Sudan Internet Society
SE Sweden The Internet Infrastructure Foundation
SG Singapore Singapore Network Information Centre (SGNIC) Pte Ltd
SH Saint Helena Government of St. Helena
SI Slovenia Academic and Research Network of Slovenia (ARNES)
SJ Svalbard and Jan Mayen UNINETT Norid A/S
SK Slovakia SK-NIC, a.s.
SL Sierra Leone Sierratel
SM San Marino Telecom Italia San Marino S.p.A.
SN Senegal Universite Cheikh Anta Diop NIC Senegal
SO Somalia World Class Domains c/o Monolith Innovation Group
SR Suriname Telesur
ST Sao Tome and Principe Tecnisys
SU Soviet Union (being phased out) Russian Institute for Development of Public Networks (ROSNIIROS)
SV El Salvador SVNet
SY Syrian Arab Republic Syrian Telecommunications Establishment (STE)
SZ Swaziland University of Swaziland Department of Computer Science
TC Turks and Caicos Islands Melrex TC
TD Chad Socié des técommunications du Tchad (SOTEL TCHAD)
TEL Reserved for businesses and individuals to publish their contact data Telnic Ltd.
TF French Southern Territories AFNIC (NIC France) – Immeuble International
TG Togo CAFE INFORMATIQUE ET TELECOMMUNICATION
TH Thailand Thai Network Information Center Foundation
TJ Tajikistan Information Technology Center
TK Tokelau Telecommunication Tokelau Corporation (Teletok)
TL Timor-Leste Timor-Leste NIC
TM Turkmenistan TM Domain Registry Ltd
TN Tunisia Agence Tunisienne d’Internet
TO Tonga Government of the Kingdom of Tonga
TP Portuguese Timor (being phased out) Connect-Ireland
TRAVEL Reserved for entities whose primary area of activity is in the travel industry Tralliance Corporation
TT Trinidad and Tobago University of the West Indies
TV Tuvalu VeriSign Global Registry Services
TW Taiwan Taiwan Network Information Center (TWNIC)
TZ Tanzania, United Republic of University of Dar Es Salaam
UA Ukraine Communication Systems Ltd
UG Uganda Uganda Online Ltd.
UK United Kingdom Nominet UK
UM United States Minor Outlying Islands _TLD not assigned to operator
US United States NeuStar, Inc.
UY Uruguay SeCIU – Universidad de la Republica
UZ Uzbekistan Computerization and Information Technologies Developing Center
VA Holy See (Vatican City State) Holy See Secretariat of State Internet Office of the Holy See
VC Saint Vincent and the Grenadines Ministry of Telecommunications, Science, Technology and Industry
VE Venezuela Centro Nacional de Tecnologias de Informacion
VG Virgin Islands, British Pinebrook Developments Ltd
VI Virgin Islands, U.S. Virgin Islands Public Telcommunications System c/o COBEX Internet Services
VN Viet Nam Ministry of Post and Telematics
VU Vanuatu Telecom Vanuatu Limited
WF Wallis and Futuna AFNIC (NIC France) – Immeuble International
WS Samoa Government of Samoa
YE Yemen TeleYemen
YT Mayotte AFNIC (NIC France) – Immeuble International
YU Yugoslavia (being phased out) Serbian National Register of Internet Domain Names (temporary caretaker)
ZA South Africa ZA Domain Name Authority
ZM Zambia ZAMNET Communication Systems Ltd.
ZW Zimbabwe Postal and Telecommunications Regulatory Authority of Zimbabwe (POTRAZ)