Riau Islands Flight Information Region

The Riau Islands Flight Information Region is a proposed Flight Information Region (FIR) situated above the Riau Islands, which is a province of Indonesia comprising the principal group of the Riau Archipelago along with other island groups to the south, east and northeast. It is currently part of the Singapore FIR under the administration of the Singapore civil aviation authorities as a result of an arrangement by the International Civil Aviation Organization (ICAO) in 1946.

Source: Wikipedia — Riau Islands Flight Information Region (CC BY-SA 4.0)