The problem of this writing is “To know the application of sovereignty principles
according to UNCLOS 1982 in the case of submarine cable installment located off
Anambas and Natuna islands by Malaysia. As a coastal state and an archipelago state,
Indonesia has sovereignty over land, inland waters, and archipelagic waters, this
sovereignty extends to the air space over the territorial sea as well as to its bed and
subsoil. Cable Landing Station (CLS) is a place where sub marine fiber optic cable
carrier goes to the mainland and then distributed to Network Access Provider or to
Internet Service Provider. This means malaysia has violated Indonesian sovereignty.
Indonesia must tightens surveillance at Anambas and Natuna islands also the other
border areas. In case of submarine optical cable installment located in Anambas and
Natuna islands by Malaysia, the principle of Indonesian sovereignty has been violated
with the construction of the Landing Station, because this submarine cables were planted
without permission. This scientific writing uses the Normative Legal method that means
data collection including secondary data from legal documents, books and other data that
also provide the necessary information for the writing.