There are two subscription options for accessing telephone numbers on the National DNCL: Query and Download.
Query subscription lets you check up to 100 numbers at a time in any combinations of area codes to determine if those numbers are on the National DNCL.
Download subscription lets you download a file containing a list of telephone numbers that are registered on the National DNCL to compare with your calling list. The download subscription is available for a 1-, 3-, 6-. or 12-month period. You can purchase the entire list for Canada, which includes the numbers registered in all of the area codes, or you can purchase only numbers contained in the area codes that cover your marketing territory. National DNCL pricing is available here.