Not sure if I can agree totally, I get less spam calls on my danish phone number than on my US phone, however I do get missed calls every now and then followed by a call from a "Microsoft Tech Support" which are an awful similar in style to those reported on in the podcast "Reply All"[1] I suspect those are number spoofing as they rarely get the length of the local phone numbers correct.

In case of calls originating from another country will laws and regulation actually be able to do anything here?

[1] https://gimletmedia.com/shows/reply-all/6nh3wk/102-long-dist...