A fax spammer, known as FaxIt Communications. They change their number every few months to avoid block lists.

Fax laws in Canada have rules regarding unsolicited faxes.

Unsolicited Faxes can be considered a crime when an autodialer is used(can be considered harassment as well with the multiple tries to an unconfirmed fax number).
There is a 'no-send unsolicited fax to', hours of about between 10pm to 7am(Especially to a residence or non-business).
There also needs to be a valid call back number to get off the beeping list. Preferably a second voice line at the same number that was used to send the fax. Without a fax machine to receive a fax, a number put on the fax can not be read to call back to get off of fax list.

Companies collect phone numbers and sell to fax spam companies.