Spam Longevity

My son lent his phone to Jordan when he was in the USMC, over 8 years ago.  I don't know what Jordan did with it, but when I took over that number when Chris moved to Norway, I got calls and texts for payday loans and threats that I had just been sued and had better call a particular number right away.  This stopped about two years ago.  Yesterday Jordan got a text telling him his POLICY was about to expire.