I can only submit 10000 characters. If you want the complete list it is here: Domain Name Extension Definitions
Generic Top Level Domains (gTLD)
.COM Generic top-level domain
.INFO Generic top-level domain
.NET Generic top-level domain
.ORG Generic top-level domain
Generic-Restricted Top-Level Domains
BIZ Restricted for Business
.NAME Reserved for individuals
.PRO Restricted to credentialed professionals and related entities
Sponsored Top-Level Domains (sTLD)
AERO Reserved for members of the air-transport industry
.ASIA Restricted to the Pan-Asia and Asia Pacific community
.CAT Reserved for the Catalan linguistic and cultural community
.COOP Reserved for cooperative associations
.EDU Reserved for post-secondary institutions accredited by an agency on the U.S. Department of Education's list of Nationally Recognized Accrediting Agencies
.GOV Reserved exclusively for the United States Government
.INT Used only for registering organizations established by international treaties between governments
.JOBS Reserved for human resource managers
.MIL Reserved exclusively for the United States Military
.MOBI Reserved for consumers and providers of mobile products and services
.MUSEUM Reserved for museums
.TEL Reserved for businesses and individuals to publish their contact data
.TRAVEL
Reserved for entities whose primary area of activity is in the travel industry
Country Code Top-Level Domains (ccTLD)
AC Ascension Island
Network Information Center (AC Domain Registry)
c/o Cable and Wireless (Ascension Island)
.AD Andorra
STA Servei de Telecomunicacions d'Andorra
.AE United Arab Emirates
Telecommunication Regulatory Authority (TRA)
.AF Afghanistan
Ministry of Communications and IT
.AG Antigua and Barbuda
UHSA School of Medicine
.AI Anguilla
Government of Anguilla
.AL Albania
Electronic and Postal Communications Authority - AKEP
.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
.AT Austria
NIC.AT Internet Verwaltungs und Betriebsgesellschaft m.b.H
.AU Australia
.au Domain Administration (auDA)
.AW Aruba
SETAR
.AX Aland Islands
Ålands landskapsregering
.AZ Azerbaijan
IntraNS
B
.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
.BJ Benin
Offices des Postes et Telecommunications
.BL Saint Barthelemy
Not assigned
.BM Bermuda
Registry General
Ministry of Labour and Immigration
.BN Brunei Darussalam
Jabatan Telekom Brunei
.BO Bolivia
Agencia para el Desarrollo de la Información de 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
C
.CA Canada
Canadian Internet Registration Authority (CIRA)
Autorite Canadienne pour les Enregistrements Internet (ACEI)
.CC Cocos (Keeling) Islands
eNIC Cocos (Keeling) Islands Ltd.
Pty, d/b/a Island Internet 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
.CR Costa Rica
National Academy of Sciences
Academia Nacional de Ciencias
.CU Cuba
CENIAInternet
Industria y San Jose
Capitolio Nacional
.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
D
.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
E
.EC Ecuador
NIC.EC (NICEC) S.A.
.EE Estonia
National Institute of Chemical Physics and Biophysics
.EG Egypt
Egyptian Universities Network (EUN)
Supreme Council of Universities
.EH Western Sahara
Not assigned
.ER Eritrea
Eritrea Telcommunication Services Corporation (EriTel)
.ES Spain
Red.es
.ET Ethiopia
Ethiopian Telecommunications Corporation
.EU European Union
EURid vzw/asbl
F
.FI Finland
Finnish Communications Regulatory Authority
.FJ Fiji
The University of the South Pacific
IT Services
.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
G
.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
.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
Fundação IT & MEDIA Universidade de Bissao
.GY Guyana
University of Guyana
H
.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)
I
.ID Indonesia
IDNIC-PPAU Mikroelektronika
.IE Ireland
University College Dublin
Computing Services
Computer Centre
.IL Israel
Internet Society of Israel
.IM Isle of Man
Isle of Man Government
.IN India
National Centre for Software Technology
.IO British Indian Ocean Territory
IO Top Level Domain Registry
Cable and Wireless
.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
J
.JE Jersey
Island Networks (Jersey) Ltd.
.JM Jamaica
University of West Indies
.JO Jordan
National Information Technology Centre
.JP Japan
Japan Registry Services Co., Ltd.
K
.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
L
.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
LK Domain Registrar
.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
Institute of Mathematics and Computer Science
Department of Network Solutions (DNS)
.LY Libyan Arab Jamahiriya
General Post and Telecommunication Company
Generic Top Level Domains (gTLD)
.COM Generic top-level domain
.INFO Generic top-level domain
.NET Generic top-level domain
.ORG Generic top-level domain
Generic-Restricted Top-Level Domains
BIZ Restricted for Business
.NAME Reserved for individuals
.PRO Restricted to credentialed professionals and related entities
Sponsored Top-Level Domains (sTLD)
AERO Reserved for members of the air-transport industry
.ASIA Restricted to the Pan-Asia and Asia Pacific community
.CAT Reserved for the Catalan linguistic and cultural community
.COOP Reserved for cooperative associations
.EDU Reserved for post-secondary institutions accredited by an agency on the U.S. Department of Education's list of Nationally Recognized Accrediting Agencies
.GOV Reserved exclusively for the United States Government
.INT Used only for registering organizations established by international treaties between governments
.JOBS Reserved for human resource managers
.MIL Reserved exclusively for the United States Military
.MOBI Reserved for consumers and providers of mobile products and services
.MUSEUM Reserved for museums
.TEL Reserved for businesses and individuals to publish their contact data
.TRAVEL
Reserved for entities whose primary area of activity is in the travel industry
Country Code Top-Level Domains (ccTLD)
AC Ascension Island
Network Information Center (AC Domain Registry)
c/o Cable and Wireless (Ascension Island)
.AD Andorra
STA Servei de Telecomunicacions d'Andorra
.AE United Arab Emirates
Telecommunication Regulatory Authority (TRA)
.AF Afghanistan
Ministry of Communications and IT
.AG Antigua and Barbuda
UHSA School of Medicine
.AI Anguilla
Government of Anguilla
.AL Albania
Electronic and Postal Communications Authority - AKEP
.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
.AT Austria
NIC.AT Internet Verwaltungs und Betriebsgesellschaft m.b.H
.AU Australia
.au Domain Administration (auDA)
.AW Aruba
SETAR
.AX Aland Islands
Ålands landskapsregering
.AZ Azerbaijan
IntraNS
B
.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
.BJ Benin
Offices des Postes et Telecommunications
.BL Saint Barthelemy
Not assigned
.BM Bermuda
Registry General
Ministry of Labour and Immigration
.BN Brunei Darussalam
Jabatan Telekom Brunei
.BO Bolivia
Agencia para el Desarrollo de la Información de 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
C
.CA Canada
Canadian Internet Registration Authority (CIRA)
Autorite Canadienne pour les Enregistrements Internet (ACEI)
.CC Cocos (Keeling) Islands
eNIC Cocos (Keeling) Islands Ltd.
Pty, d/b/a Island Internet 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
.CR Costa Rica
National Academy of Sciences
Academia Nacional de Ciencias
.CU Cuba
CENIAInternet
Industria y San Jose
Capitolio Nacional
.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
D
.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
E
.EC Ecuador
NIC.EC (NICEC) S.A.
.EE Estonia
National Institute of Chemical Physics and Biophysics
.EG Egypt
Egyptian Universities Network (EUN)
Supreme Council of Universities
.EH Western Sahara
Not assigned
.ER Eritrea
Eritrea Telcommunication Services Corporation (EriTel)
.ES Spain
Red.es
.ET Ethiopia
Ethiopian Telecommunications Corporation
.EU European Union
EURid vzw/asbl
F
.FI Finland
Finnish Communications Regulatory Authority
.FJ Fiji
The University of the South Pacific
IT Services
.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
G
.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
.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
Fundação IT & MEDIA Universidade de Bissao
.GY Guyana
University of Guyana
H
.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)
I
.ID Indonesia
IDNIC-PPAU Mikroelektronika
.IE Ireland
University College Dublin
Computing Services
Computer Centre
.IL Israel
Internet Society of Israel
.IM Isle of Man
Isle of Man Government
.IN India
National Centre for Software Technology
.IO British Indian Ocean Territory
IO Top Level Domain Registry
Cable and Wireless
.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
J
.JE Jersey
Island Networks (Jersey) Ltd.
.JM Jamaica
University of West Indies
.JO Jordan
National Information Technology Centre
.JP Japan
Japan Registry Services Co., Ltd.
K
.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
L
.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
LK Domain Registrar
.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
Institute of Mathematics and Computer Science
Department of Network Solutions (DNS)
.LY Libyan Arab Jamahiriya
General Post and Telecommunication Company