Not an AIBU but putting this here so that hopefully more will see it
Just had three recorded message calls, claiming to be from my bank's fraud department (though bank not named) saying there have been two attampts at suspicious withdrawals and "press 1 to speak to someone"
The difference is that, instead of being a withheld/unidentified number, it showed a landline one with my own city's dialling code - didn't know they could do that 
Anyway thought it might be worth mentioning; the number's invalid of course, but didn't want anyone to get taken in by such a call appearing to be a local one