| Suffix | Country | Whois Server / Site |
| ac | Ascension Island | http://www.nic.ac/cgi-bin/whois/ |
| ad | Andorra | |
| ae | United Arab Emirates | |
| af | Afghanistan | whois whois.nic.as |
| ag | Antigua and Barbuda | |
| ai | Anguilla | |
| al | Albania | whois.ripe.net |
| am | Armenia |
whois.amnic.net or http://www.amnic.net/cgi-bin/host |
| an | Netherlands Antilles | |
| ao | Angola | |
| aq | Antarctica | |
| ar | Argentina | http://www.nic.ar/cgi-bin/nic/consdom.cgi |
| arpa | Old style Arpanet | |
| as | American Samoa | whois.nic.as |
| at | Austria | whois.ripe.net |
| au | Australia | whois.aunic.net |
| aw | Aruba | |
| az | Azerbaidjan | whois.ripe.net |
| ba | Bosnia-Herzegovina | |
| bb | Barbados | |
| bd | Bangladesh | |
| be | Belgium | whois.ripe.net |
| bf | Burkina Faso | |
| bg | Bulgaria | whois.ripe.net |
| bh | Bahrain | |
| bi | Burundi | http://www.nic.cd/database/bi.txt |
| bj | Benin | |
| bm | Bermuda | rwhois.ibl.bm (port 4321) |
| bn | Brunei Darussalam | |
| bo | Bolivia | |
| br | Brazil | http://registro.br/cgi-bin/nicbr/domainsearch.fcg |
| bs | Bahamas | |
| bt | Bhutan | whois.nic.as |
| bv | Bouvet Island | |
| bw | Botswana | |
| by | Belarus | whois.ripe.net |
| bz | Belize | |
| ca | Canada | whois.cdnnet.ca or http://www.cdnnet.ca/regs/ |
| cc | Cocos (Keeling) Islands | whois.nic.cc or http://www.nic.cc/who.html |
| cd | Zaire | http://www.nic.cd/database/cd.txt |
| cf | Central African Republic | |
| cg | Congo | http://www.nic.cd/database/cg.txt |
| ch | Switzerland | whois.nic.ch |
| ci | Ivory Coast (Cote D'Ivoire) | |
| ck | Cook Islands | |
| cl | Chile | http://www.nic.cl/ |
| cm | Cameroon | |
| cn | China | whois.apnic.net or http://www.cnnic.cn/ |
| co | Colombia | |
| com | Commercial | |
| cr | Costa Rica | http://www.nic.cr/consulta-dns.html |
| cs | Former Czechoslovakia | |
| cu | Cuba | |
| cv | Cape Verde | |
| cx | Christmas Island | whois.nic.cx |
| cy | Cyprus | whois.ripe.net |
| cz | Czech Republic | whois.ripe.net |
| de | Germany | whois.ripe.net |
| dj | Djibouti | |
| dk | Denmark | whois.ripe.net |
| dm | Dominica | |
| do | Dominican Republic | |
| dz | Algeria | whois.ripe.net |
| ec | Ecuador | |
| edu | Educational | rs.internic.net |
| ee | Estonia | whois.ripe.net |
| eg | Egypt | whois.ripe.net |
| eh | Western Sahara | |
| es | Spain | whois.ripe.net or http://www.nic.es/whois/ |
| et | Ethiopia | |
| fi | Finland | http://www3.nedecon.fi/cgi-bin/thk/domains.pl?language=eng |
| fj | Fiji | |
| fk | Falkland Islands | |
| fm | Micronesia | |
| fo | Faroe Islands | whois.ripe.net |
| fr | France | whois.nic.fr |
| fx | France (European Territory) | |
| ga | Gabon | whois.ripe.net |
| gb | Great Britain | |
| gd | Grenada | |
| ge | Georgia | whois.ripe.net or http://www.nic.net.ge/ |
| gf | French Guyana | |
| gh | Ghana | |
| gi | Gibraltar | http://www.gibnet.gi/nic/register.html |
| gl | Greenland | whois.ripe.net |
| gm | Gambia | |
| gn | Guinea | |
| gov | USA Government | |
| gp | Guadeloupe (French) | |
| gq | Equatorial Guinea | |
| gr | Greece | whois.ripe.net or http://pythia.ics.forth.gr/cgi-bin/webwhois |
| gs | S. Georgia & S. Sandwich Isls. | http://www.adamsnames.tc/ |
| gt | Guatemala | http://www.gt/cir/nodos.htm |
| gu | Guam (USA) | http://gadao.gov.gu/Scripts/wwsquery/wwsquery.dll?page=guamquery |
| gw | Guinea Bissau | |
| gy | Guyana | |
| hk | Hong Kong | whois.apnic.net |
| hm | Heard and McDonald Islands | http://www.registry.hm/whois.html |
| hn | Honduras | http://www.hn/eng_menu.htm |
| hr | Croatia | whois.ripe.net or http://ds.carnet.hr/whois/diggere.html |
| ht | Haiti | |
| hu | Hungary | whois.ripe.net or http://www.nic.hu/domainsearch/ |
| id | Indonesia | http://tukang.access.net.id/domain/ |
| ie | Ireland | whois.ripe.net orhttp://www.domainregistry.ie/lists/dom-list.html |
| il | Israel | whois.ripe.net orhttp://www.isoc.org.il/domains.html |
| in | India | |
| int | International | |
| io | British Indian Ocean Territory | http://www.io.io/ |
| iq | Iraq | |
| ir | Iran | http://aria.nic.ir/forms/whois.html |
| is | Iceland | whois.ripe.net |
| it | Italy | whois.ripe.net or whois.nic.it |
| jm | Jamaica | |
| jo | Jordan | http://amon.nic.gov.jo/dns/ |
| jp | Japan | whois.nic.ad.jp |
| ke | Kenya | |
| kg | Kyrgyzstan | |
| kh | Cambodia | |
| ki | Kiribati | |
| km | Comoros | |
| kn | Saint Kitts & Nevis Anguilla | |
| kp | North Korea | |
| kr | South Korea | http://www.krnic.net/english/info/whois_a.html |
| kw | Kuwait | http://www.internic.net.kw/ |
| ky | Cayman Islands | |
| kz | Kazakhstan | http://www.domain.kz/search |
| la | Laos | |
| lb | Lebanon | http://www.aub.edu.lb/lbdr/search.html |
| lc | Saint Lucia | |
| li | Liechtenstein | whois.nic.li |
| lk | Sri Lanka | whois.nic.lk |
| lr | Liberia | |
| ls | Lesotho | |
| lt | Lithuania | whois ripe.net |
| lu | Luxembourg | whois.restena.lu or whois.ripe.net |
| lv | Latvia | whois.ripe.net |
| ly | Libya | |
| ma | Morocco | whois.ripe.net |
| mc | Monaco | |
| md | Moldavia | whois.ripe.net or http://www.nic.md/search.html |
| mg | Madagascar | |
| mh | Marshall Islands | |
| mil | USA Military | whois.nic.mil |
| mk | Macedonia | whois.ripe.net |
| ml | Mali | |
| mm | Myanmar | http://www.nic.mm/whois.html |
| mn | Mongolia | |
| mo | Macau | |
| mp | Northern Mariana Islands | |
| mq | Martinique (French) | |
| mr | Mauritania | |
| ms | Montserrat | http://www.adamsnames.tc/ |
| mt | Malta | whois.ripe.net or http://www.um.edu.mt/nic/dir/ |
| mu | Mauritius | |
| mv | Maldives | |
| mw | Malawi | http://www.tarsus.net/whois/ |
| mx | Mexico | nic.mx or http://www.nic.mx/cgi/whois |
| my | Malaysia | |
| mz | Mozambique | |
| na | Namibia | |
| nato | NATO (purged in '96-see hq.nato.int) | |
| nc | New Caledonia (French) | |
| ne | Niger | |
| net | Network | rs.internic.net |
| nf | Norfolk Island | |
| ng | Nigeria | |
| ni | Nicaragua | |
| nl | Netherlands | whois.ripe.net or domain-registry.nl |
| no | Norway | whois.ripe.net |
| np | Nepal | |
| nr | Nauru | |
| nt | Neutral Zone | |
| nu | Niue | http://www.nunames.nu/ |
| nz | New Zealand | http://www.domainz.net.nz/service/checking.html |
| om | Oman | |
| org | Non-Profit Organisations | |
| pa | Panama | |
| pe | Peru | |
| pf | Polynesia (French) | |
| pg | Papua New Guinea | |
| ph | Philippines | |
| pk | Pakistan | |
| pl | Poland | whois.ripe.net |
| pm | Saint Pierre and Miquelon | |
| pn | Pitcairn Island | |
| pr | Puerto Rico | |
| pt | Portugal | whois.ripe.net |
| pw | Palau | |
| py | Paraguay | |
| qa | Qatar | |
| re | Reunion (French) | |
| ro | Romania | whois.ripe.net |
| ru | Russian Federation | whois.ripn.ru |
| rw | Rwanda | http://www.nic.cd/database/rw.txt |
| sa | Saudi Arabia | |
| sb | Solomon Islands | |
| sc | Seychelles | |
| sd | Sudan | |
| se | Sweden | whois.nic-se.se |
| sg | Singapore | whois.nic.net.sg |
| sh | Saint Helena | |
| si | Slovenia | whois.ripe.net |
| sj | Svalbard and Jan Mayen Islands | |
| sk | Slovak Republic | whois.ripe.net |
| sl | Sierra Leone | |
| sm | San Marino | whois.ripe.net |
| sn | Senegal | |
| so | Somalia | |
| sr | Suriname | |
| st | Saint Tome (Sao Tome) and Principe | |
| su | Former USSR | whois.ripe.net |
| sv | El Salvador | |
| sy | Syria | |
| sz | Swaziland | |
| tc | Turks and Caicos Islands | http://www.adamsnames.tc/ |
| td | Chad | |
| tf | French Southern Territories | http://www.adamsnames.tc/ |
| tg | Togo | |
| th | Thailand | |
| tj | Tadjikistan | whois.nic.tj |
| tk | Tokelau | |
| tm | Turkmenistan | whois whois.nic.as |
| tn | Tunisia | whois.ripe.net |
| to | Tonga | |
| tp | East Timor | |
| tr | Turkey | whois.ripe.net |
| tt | Trinidad and Tobago | |
| tv | Tuvalu | |
| tw | Taiwan | whois.apnic.net |
| tz | Tanzania | |
| ua | Ukraine | whois.ripe.net |
| ug | Uganda | |
| uk | United Kingdom | whois.nic.uk |
| um | USA Minor Outlying Islands | |
| us | United States | whois.isi.edu |
| uy | Uruguay | |
| uz | Uzbekistan | |
| va | Vatican City State | whois.ripe.net |
| vc | Saint Vincent & Grenadines | |
| ve | Venezuela | |
| vg | Virgin Islands (British) | http://www.adamsnames.tc/ |
| vi | Virgin Islands (USA) | |
| vn | Vietnam | |
| vu | Vanuatu | |
| wf | Wallis and Futuna Islands | |
| ws | Samoa | |
| ye | Yemen | |
| yt | Mayotte | |
| yu | Yugoslavia | whois.ripe.net |
| za | South Africa | |
| zm | Zambia | |
| zr | Zaire | |
| zw | Zimbabwe |