I get constant calls from numbers starting with these same first 7 digits "1-416-964" i.e. 416-964-3241; 416-964-2679; 416-964-0103. I let my answering machine pick up but there's never a message. The calls are usually early evening, sometimes several a night. I'm a subscriber to Bell's Call Screen Service but am unable to block them. Automated voice always says "we are sorry ... try again."