Dsn Meaning Military. The government & military acronym /abbreviation/slang dsn means defense system. Web if you're using your personal, you need to find the commercial prefix (area code and first 3) the last 4 should be the same.
Showing only military and government definitions ( show all 58 definitions) note: Business / military categories unternehmen / militärische kategorien; Dsn, defense switched network (formerly autovon) ;
