I once participated in some work like this, https://en.wikipedia.org/wiki/List_of_mobile_telephone_prefixes_by_country https://en.wikipedia.org/wiki/List_of_mob

I once participated in some work like this, https://en.wikipedia.org/wiki/List_of_mobile_telephone_prefixes_by_country https://en.wikipedia.org/wiki/List_of_mobile_telephone_prefi... was super helpful. I couldn't find a link to libphonegen that they were referencing.