> The features really helps
In what way?
I receive many, many scam calls every single day. Looking through my call log for the last 2,000 calls or so, I can see exactly three international callers, and two of them I recall as being actual calls.
The vast majority of calls are not only from (or at least identify themselves as from) the US, but specifically my home area code.
That's despite I know for a fact that the scammers are predominantly from India or Pakistan (I once had a 25 minute conversation with some scammer in Pakistan about why he does this, and whether he could find a better use for his life, but I digress...).
The point is that it's so easy to fake Caller ID that the number you see means little to nothing - in fact, for me, an unrecognized call from my home area code is more likely to be a scam than one from an international number, and blocking international numbers would make no practical difference.
I'm not sure why the scammers that target you are showing as an international number since it's so easy for them to present any number they like. It may be something in your profile or your phone that makes them think that country code is relevant for you.
Either way... gotta run... my phone is ringing as I type... probably about the new Medicare enrollment, or maybe about final expense insurance...
/edit... nope, it was the accident claims department calling about that 'accident I had in the past two years that is showing as unclaimed' <sigh>