Comment by cptroot

It's worth noting that TFA addresses this in the context of the scam: When the scam depends on the emotional reaction in response to a loved one's distress, it doesn't matter if the number the scam is coming from is unfamiliar. This means that the scam can use "technically correct" numbers that pass SHAKEN/STIR with no loss in conversion.

TFA also mentions that by routing calls through older non-IP networks you lose the accurate information, although it sounds like the FCC is slowly cracking down on this.