Stockholm Sector K is an all level sector covering the northern part of Sweden FIR from about 64°N. It operates on 131.050 MHz.

The main tasks of sector K are:

• En-route traffic in the northern part of Sweden FIR
• Top-down coverage for a number of regional aerodromes located within the sector, when no local ATC is operating
• Initial descend for traffic with destinations in northern Finland, including Rovaniemi

With the exception of an occasional flight to or from Kiruna, Sector K is usually a fairly quiet sector most of the year. During the winter season, however, the sector will be influenced by a large amount of traffic to aerodromes in northern Finland, which will require initial descend in Sector K.

Sector K will usually be combined with sector N to the south.