A

ASO Air Surveillance Officer
ASOC Air Sovereignty Operations Centre
ASOC Army Support Operations Centre
ASOP Airspace Organisation and Procedures
ASP AIRCOM Service Processor (SITA)
ASP ATM Service Provider
ASP Air Space
ASP Air Navigation Service Provider
ASP Arrival Sequence Planner
asp assigned speed
ASP Aeronautical Information Service Staff Profile Task Force
ASP Adjustable System Parameter (ODS)
ASPP Aeronautical Fixed Service Systems Planning for Data Interchange Panel *
ASQF Application Specific Qualification Facility (part of EGNOS)
ASR Airport Surveillance Radar * (TAR)
ASR BD Agency Safety Regulatory Business Division (Eurocontrol)