You could be right but I've had the same VoIP numbers for decades so if the individual numbers were part of a blacklist that would imply I did something malicio

You could be right but I've had the same VoIP numbers for decades so if the individual numbers were part of a blacklist that would imply I did something malicious which I know I have not. AFAIK they blacklist entire NPA/NSX ranges known to be VoIP.