National Intelligence Service - Zaire (PD)
San Nicolas Island
Selective Notation of Information (SAUS)
Selective Notification of Information
Seneca Nation of Indians (DOGT)
Sensi - Language code (ETLW)
Sequence Number Indicator
Serial Network Interface (PDAA)
Service Node Interface
Shared Network Infrastructure
Shelter Now International - Association (EA)
Siemens Nixdorf Information - A system (GIS)
Signal-to-Noise Improvement - Data transmission (IEEE)
Simple Network Interface (TLAA)
Sinoe - Liberia - Airport symbol (OAG)
Sistema Nacional de Informacion - National Information System - Colombia (IID)
Snipe - NCIC car model code
Societe Nigerienne de Transports Aeriens - Niger - ICAO designator (FAAC)
Sonor Investments Ltd. - Toronto Stock Exchange symbol
Sound-to-Noise ratio Improvement (SAUS)
Soviet Naval Infantry (DOMA)
Sports Network, Inc. - Later, HSN
Standard Network Interconnection - Telecommunications
Standard Network Interface (SAUS)
Subscriber Network Identifier (SAUS)
Subscriber Network Interface - Computer science (CDE)
Sun City Indus - AMEX symbol
Sun City Industries, Inc. - AMEX symbol (SPSG)
Sundance Industries - NCIC firearms make code (NCIC)
Syndicat National des Instituteurs - National Union of Teachers - France
System Network Interconnection (SAUS)
Systems network architecture Network Interconnection (SAUS)
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