RAF Boulmer is situated near Alnwick, the county town of Northumberland. Part of 2 Group, it is a key station of the RAF's Air C2 Force, providing surveillance of UK airspace and tactical control of combat and support aircraft.
The core to RAF Boulmer's operations is its Air Surveillance and Control System (ASACS), which is used to defend UK airspace and train for contingent operations.
Number 19 Squadron provides operations personnel to conduct this task 24/7, while Number 20 Squadron is the ASACS Operational Conversion Unit. Both Squadrons are supported by the engineers and technicians of 144 Signals Unit, and the staff of RAF Boulmer Station.
Around 1,000 Service, civilian, and contracted personnel work at RAF Boulmer.