The world has a total of 676 two-letter .com domains, with over 300 already in use by various businesses worldwide. According to domain investor George Kirikos, the top three countries with the most two-letter .com domains are the United States with 299 (44.2%), China with 209 (30.9%), and the UK with data currently unavailable, but a previous count from four years ago identified over 50 .com-utilizing companies in the UK. Other countries, including France, Germany, and South Korea, also have a presence.
Domain information is dynamic, so these figures are for reference only.
Do you know which notable companies in South Korea are using two-letter .com domains? As of now, there are four well-known South Korean enterprises using such domains. Let's take a look:
1. SK.com
SK Group, tracing its roots back to a small textile factory in 1953, has evolved into a cornerstone of South Korea's economic growth. Initially a foundational industry for the national economy, SK has transformed into a core industry for the new era, contributing significantly to the country's economic development across diverse fields. During a period of stagnation in the textile industry, SK pioneered the development of exported fibers in South Korea, creating a myth by becoming the first to produce polyester filament domestically.

2. LG.com
Founded in 1947 in Seoul, South Korea, LG Group has grown into an international conglomerate leading global industrial development. With over 300 overseas offices in 171 countries and regions, LG subsidiaries include LG Electronics, LG Display, LG Chemical, and LG Life Health, spanning industries such as chemical energy, electronics, telecommunications, and services.

3. HD.com
Hyundai Heavy Industries Co., Ltd. is a globally renowned comprehensive heavy industry company and the birthplace of heavy industries in South Korea. With eight business divisions, including the Shipbuilding Division and the Engine & Machinery Division, Hyundai Heavy Industries boasts the world's largest production scale. The domain HD.com underwent a rebranding in May this year, creating a buzz both domestically and internationally.

4. KT.com
KT Corporation is South Korea's largest telecommunications company. Established on December 10, 1981, with the goal of enhancing public convenience and improving public welfare, KT separated its communication department from the Ministry of Communications (now the Ministry of Information and Communication) through a "publicization" transformation plan. Initially focusing on popularizing communication, the company invested heavily in telephone facilities. From a mere 4.5 million telephone lines in 1982, the number expanded to 20 million by 1993, laying a solid foundation for early completion of informatization.

These application cases indicate that companies utilizing two-letter .com domains are often large conglomerates with excellent visibility and substantial profits. Therefore, these 676 two-letter .com domains are destined to be acquired and used by major enterprises.
Currently, there are fewer than 100 two-letter .com domains circulating in the market, with most either held by companies or preserved by investors. It's worth noting that some two-letter .com domains available for purchase include:
SH.com, FN.com, BZ.com, RZ.com
HX.com, PY.com, JL.com, QN.com
BT.com, YB.com, KD.com, VV.com
TS.com, LP.com, JN.com, KR.com