Autonomous System Number Abstract Syntax Notation Access Service Network Assistant Secretary of the Navy Advanced Shipping Notice Associate of Science In Nursing Allotment Serial Number Asparagine Autonomous System Numbers Access Services Network Access Stack Node Acknowledgement Sequence Number Aeronautical Satellite News African Scientific Network American Society of Naturalists American Society of Nephrology APU Serial Number assign Atomic Strike Net Average Sample Number Abstract Symbol Notation acidified sodium nitrite Actual Slot Number acute sensory neuropathy Adobe Solutions Network Advance Ship Notice Advance Shipment Notice Advanced Silicon Nitride Advanced slot notification Advnaced Shipment Notification