Common Numbering Links

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• 800 Service Management System (SMS/800)
• Alliance for Telecommunications Industry Solutions (ATIS)
• American National Standards Institute
• Canadian Local Number Portability Consortium (CLNPC)
• Canadian Numbering Administration Consortium (CNAC)
• Canadian Radio-television and Telecommunications Commission (CRTC)
• CISC - Committee on Numbering (CSCN) Guidelines
• CRTC Interconnection Steering Committee (CISC) - Agreements, Guidelines, Manuals & Procedures
• Industry Numbering Committee (INC)
• International Telecommunication Union (ITU)
• National Exchange Carriers Association (NECA)
• North American Numbering Council (NANC)
• North American Numbering Plan Administrator (NANPA)
• Telcordia Routing Administration (TRA)

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