Title: Canada Directory Area Code Boundaries 2006.4 Date: 2006 Geography: Canada Publisher: DMTI Spatial Inc. Availability: Available for direct download by Ryerson community members. More info. Title: Canada Directory Area Code Boundaries 2007.3 Date: 2007 Geography: Canada Publisher: DMTI Spatial Inc. Availability: Available for direct download by Ryerson community members. More info. Title: Canada Directory Area Code Boundaries 2008.3 Date: 2008 Geography: Canada Publisher: DMTI Spatial Inc. Availability: Available by request to Ryerson community members. More info.