[worthless-trash]

So, its relatively easy because there is limited ISP's in my country. I imagine its a much harder option for the US.

I looked at all the IP ranges delegated by APNIC, along with every local ISP that I could find, unioned this with

https://lite.ip2location.com/australia-ip-address-ranges

And so far i've not had any complaints. and I think that I have most of them.

At some time in the future, i'll start including https://github.com/ebrasha/cidr-ip-ranges-by-country