.us is the Internet country code top-level domain (ccTLD) for the United States. It was established in early 1985. Registrants of .us domains must be U.S. citizens, residents, or organizations, or a foreign entity with a presence in the United States. Most registrants in the U.S. have registered for .com, .net, .org and other gTLDs, instead of .us, which has primarily been used by state and local governments, even though private entities may also register .us domains.
.uk is the Internet country code top-level domain (ccTLD) for the United Kingdom. It was first registered in July 1985, seven months after the original generic top-level domains such as .com and the first country code after .us.
A country code top-level domain (ccTLD) is an Internet top-level domain generally used or reserved for a country, sovereign state, or dependent territory identified with a country code. All ASCII ccTLD identifiers are two letters long, and all two-letter top-level domains are ccTLDs.
.ae is the country code top-level domain (ccTLD) in the Domain Name System of the Internet for the United Arab Emirates. It is administered by .aeDA which is part of the Telecommunications and Digital Government Regulatory Authority of UAE (TDRA).
.ba is the Internet country code top-level domain (ccTLD) for Bosnia and Herzegovina. It is administered by the University Teleinformation Center.
.bd is the Internet country code top-level domain (ccTLD) for Bangladesh. It is administered by the Ministry of Posts, Telecommunications and Information Technology. Registrations are at the third level beneath several second-level labels, paralleling the oldest gTLDs; registration is open except in the gov and mil subdomains, which are limited to authorized entities in the Bangladesh government. Though online registration facility available for .bd domains, but not directly. It should follow the structure like - example.com.bd, example.net.bd. example.ac.bd etc.
.sa is the Latin alphabet Internet country code top-level domain (ccTLD) of Saudi Arabia. Domains of this type can be registered through SaudiNIC, a department of the Communications and Information Technology Commission. The Arabic alphabet ccTLD of Saudi Arabia is السعودية.
.il is the Internet country code top-level domain (ccTLD) of Israel, administered by the Israel Internet Association and managed by NIC - ISRAEL, which hosts the DNS root server and manages the Israeli Internet Exchange, that supports IPv4 and IPv6.
.cy is the country code top-level domain (ccTLD) for Cyprus. Some restrictions exist for various subdomains, but .com.cy is unrestricted to Cypriot entities.
.id is the Internet country code top-level domain (ccTLD) for Indonesia. It is managed by the Ministry of Communication and Information Technology of the Republic of Indonesia.
.vi is the Internet country code top-level domain (ccTLD) for the U.S. Virgin Islands.
.re is the Internet country code top-level domain (ccTLD) for Réunion. Along with .fr, .tf, and .ovh, it is administered by AFNIC.
.mx is the Internet country code top-level domain (ccTLD) for Mexico, which in 2009 was re-opened to new registrations by NIC México. In 2009, the .mx ccTLD was rolled out in three steps:
.ky is the Internet country code top-level domain (ccTLD) for the Cayman Islands. The code was chosen as other possible options had already been allocated. Registration was limited to residents and registered companies in the Cayman Islands with a local address, but this restriction was removed in September 2015. The Cayman Islands also has the international three-letter code CYM and has won a bid to be awarded the .cym domain in a future expansion of the top-level domain space.
.ma is the Internet country code top-level domain (ccTLD) for Morocco. A local registrar with a local Moroccan company as administrative contact is needed to register a .ma or .co.ma domain name. Further restrictions are imposed on the registering of other second-level domains.
.mg is the Internet country code top-level domain (ccTLD) for the Republic of Madagascar.
.mr is the Internet country code top-level domain (ccTLD) for Mauritania.
.mt is the Internet country code top-level domain (ccTLD) for Malta.
.ps is the Internet country code top-level domain ccTLD officially assigned to the State of Palestine. It is administered by the Palestinian National Internet Naming Authority.
.tt is the internet country code top-level domain (ccTLD) in the Domain Name System of the Internet for Trinidad and Tobago.
Guatemala 
