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