Explicit Congestion Notification 
Engineering Change Notice 
Electronic Communication Network 
Engineering Change Notification 
ELECTRONIC CHANGE NOTICE 
electronic communications network 
Equipment Control Number 
Export Clearance Number 
Emergency Call Network 
Encoding Control Notation 
Engineering Computer Network 
Enroute Change Notice 
Environmental Change Network 
equivalent carbon number 
Electronic Components News 
Emergency Communication Network 
Emergency Communications Network 
Energieonderzoek Centrum Nederlands 
Energy Center Netherlands 
Energy Research Centre 
Engineering as Collaborative Negotiati… 
Engineering Change Note 
Equivalent Chain Number 
ERMES Code Number 
Escherichia coli strain Nissle 1917 
Euro Continental AIE 
European Communities Number 
European Counter Network 
European Cytokine Network 
Exclusion Class Number