POST Luxembourg was founded in 1842 as a public service and has been a wholly state-owned company since 1992. It is the country's largest provider of postal and telecommunications services and also offers financial and philatelic services. Telecommunication services range from fixed and mobile telephony to Internet access and television, as well as many tailor-made services designed for businesses. Owner of its fixed and mobile infrastructures, POST, together with its subsidiary POST Telecom S.A., offers high-speed secure connectivity solutions as well as voice and data management services for individuals and professional customers.
In 2020, POST was the first operator in Luxembourg to launch 5G. Nearly 27,000 mobile lines were created. In 2020, there were over 12 million electronic transactions and 17 million card transactions.