The Canadian Radio-television and Telecommunications Commission (CRTC) has a mandate to determine whether broadcasters comply with their operating license via a set quota of Canadian-specific content, along with Canadian-content fees. This quote deals with the heart of the matter because Netflix was given an exemption from being classified under the Canadian Broadcasting Act, and one of the conditions to maintain this exemption was that the exempted entity would share Canadian subscriber data.
I don't believe that Netflix needs to release specific subscriber details (e.g. name, number), but would have needed to release anonymized details broken down by province and potentially city. Since Netflix is choosing not to comply at all will make an interesting test of the CRTC's powers (which are typically quite extensive). I wonder how Hulu and other streaming providers are handling this?
A Financial Post article provides a little more detail around this point[1].
[1] http://business.financialpost.com/2014/09/19/sparks-fly-as-n...