Question: Both .li and .ch are country codes under which naming system?

full_context: Document 1: .li: .li is the Internet country code top-level domain (ccTLD) for Liechtenstein. The .li TLD was created in 1993. The domain is sponsored and administered by the University of Liechtenstein in Vaduz. Registration of .li domain names used to be managed by SWITCH, administrator of Switzerland's .ch ccTLD. In February 2013, SWITCH discontinued its .li registration service for private customers, delegating it to a number of recognized partner firms.
Document 2: Liquid Web: Liquid Web, Inc. is a privately held provider of web hosting services based in Lansing, Michigan, United States. The company also has locations in Ann Arbor, MI, Phoenix, AZ, San Antonio Tx, and Amsterdam, NL. They provide dedicated servers, virtual private servers (VPS) servers, Managed WordPress, Platform as a Service, and a wide range of additional hosting products and services. Jim Geiger, has been CEO since 2015.
Document 3: ETH Board: The Board of the Swiss Federal Institutes of Technology (ETH Board, German: "Rat der Eidgenössischen Technischen Hochschulen", French: "Conseil des écoles polytechniques fédérales") is the strategic unit elected by the Swiss Federal Council to manage the Swiss Federal Institutes of Technology Domain (ETH Domain).
Document 4: ETH Zurich: ETH Zurich (Swiss Federal Institute of Technology in Zurich; German: "Eidgenössische Technische Hochschule Zürich" ) is a science, technology, engineering and mathematics university in the city of Zürich, Switzerland. Like its sister institution EPFL, it is an integral part of the Swiss Federal Institutes of Technology Domain (ETH Domain) that is directly subordinate to Switzerland's Federal Department of Economic Affairs, Education and Research. The school was founded by the Swiss Federal Government in 1854 with the stated mission to educate engineers and scientists, serve as a national center of excellence in science and technology and provide a hub for interaction between the scientific community and industry.
Document 5: China Internet Network Information Center: The China Internet Network Information Center (), or CNNIC, is the administrative agency responsible for Internet affairs under the Ministry of Information Industry of the People's Republic of China.
Document 6: Vietnam Internet Network Information Center: The Vietnam Internet Network Information Center (VNNIC) is the National Internet Registry in Vietnam that manages several aspects of Internet operations, including the allocation of IP addresses and AS numbers. VNNIC is the administrative agency responsible for Internet affairs under the Ministry of Information and Communications (Vietnam).
Document 7: Lyoness: Since 2003, Lyoness has been the registered trademark name for a group of globally distributed (mostly privately owned, limited-liability) corporate structures, which originated in Austria. Lyoness comprises at least seven corporations registered in Switzerland, nine corporations registered in Austria and approximately 42 additional national and regional corporations all around the globe. The name ‘Lyoness’ was derived from the Celtic mythological kingdom ‘Lyonesse’. "Lyconet" was introduced in 2014 as a new trademark name for the same group of corporations.
Document 8: DNS Belgium: DNS Belgium is a non-profit organisation responsible for managing the ccTLD .be top level domain, as well as the new gTLD domain extensions .brussels and .vlaanderen. Domain names are registered by the various agents of DNS Belgium, on behalf of their individual clients, as part of a decentralised registration and applications procedure.
Document 9: .aq: .aq is the Internet country code top-level domain (ccTLD) for Antarctica. It is reserved for organizations that conduct work in Antarctica or promote the Antarctic and Southern Ocean regions. It is administered by Peter Mott of Mott and Associates of Auckland, New Zealand.
Document 10: .um: .um was the Internet country code top-level domain for the United States Minor Outlying Islands. It was administered by the United States Minor Outlying Islands Registry. Until late 2006 USMIR was housed at the University of Southern California Information Sciences Institute (USC-ISI), which was the original administrator of .us prior to NeuStar absorbing that role.
Document 11: Swiss International Air Lines: Swiss International Air Lines AG (short Swiss, stylized as SWISS) is the national airline of Switzerland operating scheduled services in Europe and to North America, South America, Africa and Asia. Its main hub is Zurich Airport, with a focus city operation at Geneva Airport. The airline was formed after the 2001 bankruptcy of Swissair, Switzerland's former flag carrier.
Document 12: .lgbt: .lgbt is a sponsored top-level domain for the LGBT community, sponsored by Afilias. The domain name was delegated to the Root Zone on 18 July 2014. The creation of .lgbt is meant to promote diversity and LGBT businesses, and is open to LGBT businesses, organizations, and anyone wishing to reach the LGBT community.
Document 13: .ch: .ch is the country code top-level domain (ccTLD) for Switzerland in the Domain Name System of the Internet. Made available in 1987, only two years after the .com extension, it is administered by SWITCH Information Technology Services.
Document 14: Technical Center of Internet: Technical Center of Internet (acronym – TCI; full name – Closed-End JSC “Technical Center of Internet”) is an organization engaged in technical support of Russian national domains .RU, .РФ, and domain .SU. The TCI provides service for the Main Register and for the system of registration of national domains, and ensures resilience of the domain addressing of the Russian segment of the Internet. It supports the DNS infrastructure of the Russian segment of the Internet. It also deals with the registrars accredited in the Russian national domains.
Document 15: LDC Watch: LDC Watch is an alliance of organizations based in Least Developed Countries and other related organizations. Based in Belgium, it coordinates activities in the fields of trade, debt, foreign investment, human rights, governance and conflict resolution. LDC Watch undertakes lobbying, networking and advocacy with LDC governments and development agencies. Its aim is to implement a programme of action formulated at a UN Conference in Brussels in 2001, with the participation of civil society.
ground_truth: Domain Name System of the Internet