Credit card spam calls

Has anybody also observed that the number of spam calls for credit card, pre approved loans increased exponentially?

I wanted to figure out the root cause of this.

I remember one of my friends asking me to download ONE Score app to check my credit score, around 5-6 months ago and since then, on an average there are 4-5 calls daily. Not saying this definitely was the root cause but just a speculation.

Just wanted to know what others feel regarding this and any steps they took to mitigate this.