The Canadian Local Calling Guide and its editor have no affiliation with any telephone company or organization. As this is a non-commercial project, any use of information from this site for commercial purposes is at your own risk.
Updates occur as time permits.
It all started with a freeware DOS program called T416 that David Leibold wrote some years ago. After collecting data for use with T416 it seemed logical to develop a web site. Most of it comes from tariff documents, telephone directories, CRTC tariff filings, and other telephone company sources. See other telecom information for a list of telco websites. That depends on where you are.