Extension 1:	ac - Ascension Island ac.cn - China ac.jp - Japan ac.nz - New Zealand ac.th - Thailand ac.uk - United Kingdom ad - Andorra ad.jp - Japan ae - United Arab Emirates aero - Aviation af - Afghanistan ag - Antigua and Barbuda ai - Anguilla al - Albania am - Armenia an - Netherlands Antilles ao - Angola aq - Antarctica ar - Argentina arpa - Address and Routing Parameter Area as - American Samoa asia - DotAsia Organization asn.au - Australia at - Austria au - Australia aw - Aruba ax - Aland Islands az - Azerbaijan ba - Bosnia and Herzegovina bb - Barbados bd - Bangladesh be - Belgium bf - Burkina Faso bg - Bulgaria bh - Bahrain bi - Burundi biz - Businesses bj - Benin bm - Bermuda bn - Brunei Darussalam bo - Bolivia br - Brazil bs - Bahamas bt - Bhutan bu - Burma bv - Bouvet Island bw - Botswana by - Belarus bz - Belize ca - Canada cat - Catalan language cc - Cocos (Keeling) Islands cd - Congo, The Democratic Republic of the cf - Central African Republic cg - Congo, Republic of ch - Switzerland ci - Cote d'Ivoire ck - Cook Islands cl - Chile cm - Cameroon cn - China co - Colombia co.at - Austria co.il - Israel co.jp - Japan co.nz - New Zealand co.th - Thailand co.uk - United Kingdom com - Commercial com.au - Australia com.cn - China com.sg - Singapore coop - Co-operative cr - Costa Rica cri.nz - New Zealand cs - Serbia and Montenegro cu - Cuba cv - Cape Verde cx - Christmas Island cy - Cyprus cz - Czech Republic dd - German Democratic Republic de - Germany dj - Djibouti dk - Denmark dm - Dominica do - Dominican Republic dz - Algeria ec - Ecuador ed.jp - Japan edu - Educational edu.au - Australia edu.sg - Singapore ee - Estonia eg - Egypt eh - Western Sahara er - Eritrea es - Spain et - Ethiopia eu - European Union example - Examples fi - Finland fj - Fiji fk - Falkland Islands (Malvinas) fm - Micronesia, Federal State of fo - Faroe Islands fr - France ga - Gabon gb - United Kingdom gd - Grenada ge - Georgia gen.nz - New Zealand geo - Geographical Locations gf - French Guiana gg - Guernsey gh - Ghana gi - Gibraltar gl - Greenland gm - Gambia gn - Guinea go.jp - Japan go.th - Thailand gov - US Government gov.au - Australia gov.cn - China gov.sg - Singapore gov.uk - United Kingdom govt.nz - New Zealand gp - Guadeloupe gq - Equatorial Guinea gr - Greece gr.jp - Japan gs - South Georgia & South Sandwich Islands gt - Guatemala gu - Guam gw - Guinea-Bissau gy - Guyana hk - Hong Kong hm - Heard and McDonald Islands hn - Honduras hr - Croatia/Hrvatska ht - Haiti hu - Hungary id - Indonesia id.au - Australia ie - Ireland im - Isle of Man in - India in.th - Thailand info - Informational int - International Organizations invalid - Known Invalid io - British Indian Ocean Territory iq - Iraq ir - Iran, Islamic Republic of is - Iceland it - Italy iwi.nz - New Zealand je - Jersey jm - Jamaica jo - Jordan jobs - Employment jp - Japan ke - Kenya kg - Kyrgyzstan kh - Cambodia ki - Kiribati kid - Children km - Comoros kn - Saint Kitts and Nevis kp - Korea, Democratic People's Republic kr - Korea, Republic of kw - Kuwait ky - Cayman Islands kz - Kazakhstan la - Lao People's Democratic Republic lb - Lebanon lc - Saint Lucia lg.jp - Japan li - Liechtenstein lk - Sri Lanka localhost - Reserved to Prevent Use lr - Liberia ls - Lesotho lt - Lithuania ltd.uk - United Kingdom lu - Luxembourg lv - Latvia ly - Libyan Arab Jamahiriya ma - Morocco mail - Non-Spam Mail mc - Monaco md - Moldova, Republic of me - Montenegro me.uk - United Kingdom mg - Madagascar mh - Marshall Islands mi.th - Thailand mil - US Military mil.nz - New Zealand mk - Macedonia, The Former Yugoslav Republic of ml - Mali mm - Myanmar mn - Mongolia mo - Macau mobi - Mobile mp - Northern Mariana Islands mq - Martinique mr - Mauritania ms - Montserrat mt - Malta mu - Mauritius museum - Museum mv - Maldives mw - Malawi mx - Mexico my - Malaysia mz - Mozambique na - Namibia name - Personal Names nato - NATO nc - New Caledonia ne - Niger ne.jp - Japan net - Networks net.au - Australia net.cn - China net.nz - New Zealand net.sg - Singapore net.th - Thailand net.uk - United Kingdom nf - Norfolk Island ng - Nigeria ni - Nicaragua nl - Netherlands no - Norway np - Nepal nr - Nauru nu - Niue nz - New Zealand om - Oman or.at - Austria or.jp - Japan or.th - Thailand org - Non-commercial Organizations org.au - Australia org.cn - China org.il - Israel org.nz - New Zealand org.sg - Singapore org.uk - United Kingdom pa - Panama pe - Peru per.sg - Singapore pf - French Polynesia pg - Papua New Guinea ph - Philippines pk - Pakistan pl - Poland plc.uk - United Kingdom pm - Saint Pierre and Miquelon pn - Pitcairn Island post - Postal pr - Puerto Rico pro - Professionals ps - Palestinian Territory (Occupied) pt - Portugal pw - Palau py - Paraguay qa - Qatar re - Reunion Island ro - Romania root - Root Server Infrastructure ru - Russian Federation rw - Rwanda sa - Saudi Arabia sb - Solomon Islands sc - Seychelles school.nz - New Zealand sco - Scots language sd - Sudan se - Sweden sg - Singapore sh - Saint Helena si - Slovenia sj - Svalbard and Jan Mayen Islands sk - Slovak Republic sl - Sierra Leone sm - San Marino sn - Senegal so - Somalia sr - Suriname st - Sao Tome and Principe su - Soviet Union sv - El Salvador sy - Syrian Arab Republic sz - Swaziland tc - Turks and Caicos Islands td - Chad tel - Internet Communication test - Private Testing tf - French Southern Territories tg - Togo th - Thailand tj - Tajikistan tk - Tokelau tl - Timor-Leste tm - Turkmenistan tn - Tunisia to - Tonga tp - East Timor tr - Turkey travel - Travel tt - Trinidad and Tobago tv - Tuvalu tw - Taiwan tz - Tanzania ua - Ukraine ug - Uganda uk - United Kingdom um - United States Minor Outlying Islands us - United States uy - Uruguay uz - Uzbekistan va - Holy See (Vatican City State) vc - Saint Vincent and the Grenadines ve - Venezuela vg - Virgin Islands, British vi - Virgin Islands, U.S. vn - Vietnam vu - Vanuatu web - Alternative Registry wf - Wallis and Futuna Islands ws - Western Samoa ye - Yemen yt - Mayotte yu - Yugoslavia za - South Africa zm - Zambia zr - Zaire zw - Zimbabwe
Extension 2:	ac - Ascension Island ac.cn - China ac.jp - Japan ac.nz - New Zealand ac.th - Thailand ac.uk - United Kingdom ad - Andorra ad.jp - Japan ae - United Arab Emirates aero - Aviation af - Afghanistan ag - Antigua and Barbuda ai - Anguilla al - Albania am - Armenia an - Netherlands Antilles ao - Angola aq - Antarctica ar - Argentina arpa - Address and Routing Parameter Area as - American Samoa asia - DotAsia Organization asn.au - Australia at - Austria au - Australia aw - Aruba ax - Aland Islands az - Azerbaijan ba - Bosnia and Herzegovina bb - Barbados bd - Bangladesh be - Belgium bf - Burkina Faso bg - Bulgaria bh - Bahrain bi - Burundi biz - Businesses bj - Benin bm - Bermuda bn - Brunei Darussalam bo - Bolivia br - Brazil bs - Bahamas bt - Bhutan bu - Burma bv - Bouvet Island bw - Botswana by - Belarus bz - Belize ca - Canada cat - Catalan language cc - Cocos (Keeling) Islands cd - Congo, The Democratic Republic of the cf - Central African Republic cg - Congo, Republic of ch - Switzerland ci - Cote d'Ivoire ck - Cook Islands cl - Chile cm - Cameroon cn - China co - Colombia co.at - Austria co.il - Israel co.jp - Japan co.nz - New Zealand co.th - Thailand co.uk - United Kingdom com - Commercial com.au - Australia com.cn - China com.sg - Singapore coop - Co-operative cr - Costa Rica cri.nz - New Zealand cs - Serbia and Montenegro cu - Cuba cv - Cape Verde cx - Christmas Island cy - Cyprus cz - Czech Republic dd - German Democratic Republic de - Germany dj - Djibouti dk - Denmark dm - Dominica do - Dominican Republic dz - Algeria ec - Ecuador ed.jp - Japan edu - Educational edu.au - Australia edu.sg - Singapore ee - Estonia eg - Egypt eh - Western Sahara er - Eritrea es - Spain et - Ethiopia eu - European Union example - Examples fi - Finland fj - Fiji fk - Falkland Islands (Malvinas) fm - Micronesia, Federal State of fo - Faroe Islands fr - France ga - Gabon gb - United Kingdom gd - Grenada ge - Georgia gen.nz - New Zealand geo - Geographical Locations gf - French Guiana gg - Guernsey gh - Ghana gi - Gibraltar gl - Greenland gm - Gambia gn - Guinea go.jp - Japan go.th - Thailand gov - US Government gov.au - Australia gov.cn - China gov.sg - Singapore gov.uk - United Kingdom govt.nz - New Zealand gp - Guadeloupe gq - Equatorial Guinea gr - Greece gr.jp - Japan gs - South Georgia & South Sandwich Islands gt - Guatemala gu - Guam gw - Guinea-Bissau gy - Guyana hk - Hong Kong hm - Heard and McDonald Islands hn - Honduras hr - Croatia/Hrvatska ht - Haiti hu - Hungary id - Indonesia id.au - Australia ie - Ireland im - Isle of Man in - India in.th - Thailand info - Informational int - International Organizations invalid - Known Invalid io - British Indian Ocean Territory iq - Iraq ir - Iran, Islamic Republic of is - Iceland it - Italy iwi.nz - New Zealand je - Jersey jm - Jamaica jo - Jordan jobs - Employment jp - Japan ke - Kenya kg - Kyrgyzstan kh - Cambodia ki - Kiribati kid - Children km - Comoros kn - Saint Kitts and Nevis kp - Korea, Democratic People's Republic kr - Korea, Republic of kw - Kuwait ky - Cayman Islands kz - Kazakhstan la - Lao People's Democratic Republic lb - Lebanon lc - Saint Lucia lg.jp - Japan li - Liechtenstein lk - Sri Lanka localhost - Reserved to Prevent Use lr - Liberia ls - Lesotho lt - Lithuania ltd.uk - United Kingdom lu - Luxembourg lv - Latvia ly - Libyan Arab Jamahiriya ma - Morocco mail - Non-Spam Mail mc - Monaco md - Moldova, Republic of me - Montenegro me.uk - United Kingdom mg - Madagascar mh - Marshall Islands mi.th - Thailand mil - US Military mil.nz - New Zealand mk - Macedonia, The Former Yugoslav Republic of ml - Mali mm - Myanmar mn - Mongolia mo - Macau mobi - Mobile mp - Northern Mariana Islands mq - Martinique mr - Mauritania ms - Montserrat mt - Malta mu - Mauritius museum - Museum mv - Maldives mw - Malawi mx - Mexico my - Malaysia mz - Mozambique na - Namibia name - Personal Names nato - NATO nc - New Caledonia ne - Niger ne.jp - Japan net - Networks net.au - Australia net.cn - China net.nz - New Zealand net.sg - Singapore net.th - Thailand net.uk - United Kingdom nf - Norfolk Island ng - Nigeria ni - Nicaragua nl - Netherlands no - Norway np - Nepal nr - Nauru nu - Niue nz - New Zealand om - Oman or.at - Austria or.jp - Japan or.th - Thailand org - Non-commercial Organizations org.au - Australia org.cn - China org.il - Israel org.nz - New Zealand org.sg - Singapore org.uk - United Kingdom pa - Panama pe - Peru per.sg - Singapore pf - French Polynesia pg - Papua New Guinea ph - Philippines pk - Pakistan pl - Poland plc.uk - United Kingdom pm - Saint Pierre and Miquelon pn - Pitcairn Island post - Postal pr - Puerto Rico pro - Professionals ps - Palestinian Territory (Occupied) pt - Portugal pw - Palau py - Paraguay qa - Qatar re - Reunion Island ro - Romania root - Root Server Infrastructure ru - Russian Federation rw - Rwanda sa - Saudi Arabia sb - Solomon Islands sc - Seychelles school.nz - New Zealand sco - Scots language sd - Sudan se - Sweden sg - Singapore sh - Saint Helena si - Slovenia sj - Svalbard and Jan Mayen Islands sk - Slovak Republic sl - Sierra Leone sm - San Marino sn - Senegal so - Somalia sr - Suriname st - Sao Tome and Principe su - Soviet Union sv - El Salvador sy - Syrian Arab Republic sz - Swaziland tc - Turks and Caicos Islands td - Chad tel - Internet Communication test - Private Testing tf - French Southern Territories tg - Togo th - Thailand tj - Tajikistan tk - Tokelau tl - Timor-Leste tm - Turkmenistan tn - Tunisia to - Tonga tp - East Timor tr - Turkey travel - Travel tt - Trinidad and Tobago tv - Tuvalu tw - Taiwan tz - Tanzania ua - Ukraine ug - Uganda uk - United Kingdom um - United States Minor Outlying Islands us - United States uy - Uruguay uz - Uzbekistan va - Holy See (Vatican City State) vc - Saint Vincent and the Grenadines ve - Venezuela vg - Virgin Islands, British vi - Virgin Islands, U.S. vn - Vietnam vu - Vanuatu web - Alternative Registry wf - Wallis and Futuna Islands ws - Western Samoa ye - Yemen yt - Mayotte yu - Yugoslavia za - South Africa zm - Zambia zr - Zaire zw - Zimbabwe
Extension 3:	ac - Ascension Island ac.cn - China ac.jp - Japan ac.nz - New Zealand ac.th - Thailand ac.uk - United Kingdom ad - Andorra ad.jp - Japan ae - United Arab Emirates aero - Aviation af - Afghanistan ag - Antigua and Barbuda ai - Anguilla al - Albania am - Armenia an - Netherlands Antilles ao - Angola aq - Antarctica ar - Argentina arpa - Address and Routing Parameter Area as - American Samoa asia - DotAsia Organization asn.au - Australia at - Austria au - Australia aw - Aruba ax - Aland Islands az - Azerbaijan ba - Bosnia and Herzegovina bb - Barbados bd - Bangladesh be - Belgium bf - Burkina Faso bg - Bulgaria bh - Bahrain bi - Burundi biz - Businesses bj - Benin bm - Bermuda bn - Brunei Darussalam bo - Bolivia br - Brazil bs - Bahamas bt - Bhutan bu - Burma bv - Bouvet Island bw - Botswana by - Belarus bz - Belize ca - Canada cat - Catalan language cc - Cocos (Keeling) Islands cd - Congo, The Democratic Republic of the cf - Central African Republic cg - Congo, Republic of ch - Switzerland ci - Cote d'Ivoire ck - Cook Islands cl - Chile cm - Cameroon cn - China co - Colombia co.at - Austria co.il - Israel co.jp - Japan co.nz - New Zealand co.th - Thailand co.uk - United Kingdom com - Commercial com.au - Australia com.cn - China com.sg - Singapore coop - Co-operative cr - Costa Rica cri.nz - New Zealand cs - Serbia and Montenegro cu - Cuba cv - Cape Verde cx - Christmas Island cy - Cyprus cz - Czech Republic dd - German Democratic Republic de - Germany dj - Djibouti dk - Denmark dm - Dominica do - Dominican Republic dz - Algeria ec - Ecuador ed.jp - Japan edu - Educational edu.au - Australia edu.sg - Singapore ee - Estonia eg - Egypt eh - Western Sahara er - Eritrea es - Spain et - Ethiopia eu - European Union example - Examples fi - Finland fj - Fiji fk - Falkland Islands (Malvinas) fm - Micronesia, Federal State of fo - Faroe Islands fr - France ga - Gabon gb - United Kingdom gd - Grenada ge - Georgia gen.nz - New Zealand geo - Geographical Locations gf - French Guiana gg - Guernsey gh - Ghana gi - Gibraltar gl - Greenland gm - Gambia gn - Guinea go.jp - Japan go.th - Thailand gov - US Government gov.au - Australia gov.cn - China gov.sg - Singapore gov.uk - United Kingdom govt.nz - New Zealand gp - Guadeloupe gq - Equatorial Guinea gr - Greece gr.jp - Japan gs - South Georgia & South Sandwich Islands gt - Guatemala gu - Guam gw - Guinea-Bissau gy - Guyana hk - Hong Kong hm - Heard and McDonald Islands hn - Honduras hr - Croatia/Hrvatska ht - Haiti hu - Hungary id - Indonesia id.au - Australia ie - Ireland im - Isle of Man in - India in.th - Thailand info - Informational int - International Organizations invalid - Known Invalid io - British Indian Ocean Territory iq - Iraq ir - Iran, Islamic Republic of is - Iceland it - Italy iwi.nz - New Zealand je - Jersey jm - Jamaica jo - Jordan jobs - Employment jp - Japan ke - Kenya kg - Kyrgyzstan kh - Cambodia ki - Kiribati kid - Children km - Comoros kn - Saint Kitts and Nevis kp - Korea, Democratic People's Republic kr - Korea, Republic of kw - Kuwait ky - Cayman Islands kz - Kazakhstan la - Lao People's Democratic Republic lb - Lebanon lc - Saint Lucia lg.jp - Japan li - Liechtenstein lk - Sri Lanka localhost - Reserved to Prevent Use lr - Liberia ls - Lesotho lt - Lithuania ltd.uk - United Kingdom lu - Luxembourg lv - Latvia ly - Libyan Arab Jamahiriya ma - Morocco mail - Non-Spam Mail mc - Monaco md - Moldova, Republic of me - Montenegro me.uk - United Kingdom mg - Madagascar mh - Marshall Islands mi.th - Thailand mil - US Military mil.nz - New Zealand mk - Macedonia, The Former Yugoslav Republic of ml - Mali mm - Myanmar mn - Mongolia mo - Macau mobi - Mobile mp - Northern Mariana Islands mq - Martinique mr - Mauritania ms - Montserrat mt - Malta mu - Mauritius museum - Museum mv - Maldives mw - Malawi mx - Mexico my - Malaysia mz - Mozambique na - Namibia name - Personal Names nato - NATO nc - New Caledonia ne - Niger ne.jp - Japan net - Networks net.au - Australia net.cn - China net.nz - New Zealand net.sg - Singapore net.th - Thailand net.uk - United Kingdom nf - Norfolk Island ng - Nigeria ni - Nicaragua nl - Netherlands no - Norway np - Nepal nr - Nauru nu - Niue nz - New Zealand om - Oman or.at - Austria or.jp - Japan or.th - Thailand org - Non-commercial Organizations org.au - Australia org.cn - China org.il - Israel org.nz - New Zealand org.sg - Singapore org.uk - United Kingdom pa - Panama pe - Peru per.sg - Singapore pf - French Polynesia pg - Papua New Guinea ph - Philippines pk - Pakistan pl - Poland plc.uk - United Kingdom pm - Saint Pierre and Miquelon pn - Pitcairn Island post - Postal pr - Puerto Rico pro - Professionals ps - Palestinian Territory (Occupied) pt - Portugal pw - Palau py - Paraguay qa - Qatar re - Reunion Island ro - Romania root - Root Server Infrastructure ru - Russian Federation rw - Rwanda sa - Saudi Arabia sb - Solomon Islands sc - Seychelles school.nz - New Zealand sco - Scots language sd - Sudan se - Sweden sg - Singapore sh - Saint Helena si - Slovenia sj - Svalbard and Jan Mayen Islands sk - Slovak Republic sl - Sierra Leone sm - San Marino sn - Senegal so - Somalia sr - Suriname st - Sao Tome and Principe su - Soviet Union sv - El Salvador sy - Syrian Arab Republic sz - Swaziland tc - Turks and Caicos Islands td - Chad tel - Internet Communication test - Private Testing tf - French Southern Territories tg - Togo th - Thailand tj - Tajikistan tk - Tokelau tl - Timor-Leste tm - Turkmenistan tn - Tunisia to - Tonga tp - East Timor tr - Turkey travel - Travel tt - Trinidad and Tobago tv - Tuvalu tw - Taiwan tz - Tanzania ua - Ukraine ug - Uganda uk - United Kingdom um - United States Minor Outlying Islands us - United States uy - Uruguay uz - Uzbekistan va - Holy See (Vatican City State) vc - Saint Vincent and the Grenadines ve - Venezuela vg - Virgin Islands, British vi - Virgin Islands, U.S. vn - Vietnam vu - Vanuatu web - Alternative Registry wf - Wallis and Futuna Islands ws - Western Samoa ye - Yemen yt - Mayotte yu - Yugoslavia za - South Africa zm - Zambia zr - Zaire zw - Zimbabwe