Still active. They leave an 866 number on the message to call back. CRA doesn't phone people out of the blue. They will send you a letter if they want to talk.
I received a phone call from someone saying they are canada revenue agency. I had just paid my company's GST, and the phoned to verify the GST payment. They got my SIN number and address. After I hung up it hit me that the CRA would never call someone directly for their information, so I believe this is a phishing scam to collect information. Beware.
I just received this call also. Very unprofessional so it is easy to tell its a scam. Only asked for the person by first name and wanted the cell number to contact the person. If it was the CRA for GST I know they have the number.