Canadian Numbering and Dialing Plan
CSCN Adjunct to the CISC Administrative Guidelines
Canadian Central Office Code (NXX) Assignment Guidelines (MS Word) (14 May 2010)
Alliance for Telecommunications Industry Solutions (ATIS)
Canadian Local Number Portability Consortium (CLNPC)
Canadian Numbering Administration Consortium (CNAC)
Industry Numbering Committee (INC)
International Telecommunications Union (ITU)
National Exchange Carriers Association (NECA)
North American Numbering Council (NANC)
North American Numbering Council (NANC) Chair Website
North American Numbering Plan Administration (NANPA)
Number Portability Administration Center (NPAC)
Telcordia Routing Administration