855-438-8525

This number calls every few days. It started calling in the day and switched to calling in evenings. No business or name comes up on call display only a phone number and no one in on line. It's an automated system and sometimes I'll answer and immediately hang up sometimes I'll ignore it and let it ring. It won't stop calling

One of the robo blocking sites has a transcript of a call from this number.  According to that post, the caller is Credit Bureau of Canada Collections.  I did not find this number listed on their website, so if you are planning to contact them, use the number published on that site.  Numbers can be spoofed.  You may also want to take a moment to read about your rights with debt collections.

https://www.canada.ca/en/financial-consumer-a ... collection.html