For more than a year wife had calls from both the IRS and FBI, and some unknown lawsuit threatening to come after her.
We must be really good at hiding because the FBI never found us and just gave up calling!
After months I answered and it was obviously a call center but it was from my bank. I'm in Canada and TD spammed me with phone calls for months every day just to ask if I wanted a travel credit card.
Even supposedly legitimate calls can be annoying and stupid.
They all matched the area code and prefix of my number but the last four were always different. Block one another calls 12 minutes later.
I’ve had this number for 13 years, have ported it across carriers and it’s long been known by friends and family as the default way to find me. This problem was a mild nuisance years ago. It’s a plague now.
It may be time to finally give it up.
However, I don’t expect any urgent calls from anyone outside of my contacts so I was able to fix the problem by enabling iOS’s Silence Unknown Callers feature.