im posting here a trick i used long back when i was into socks scanning. Finding ranges is the hard part as most of you guys know. Im here in India and i know most of the Indian ranges work at 11am. so what i used to do was, grab as many indian socks proxys i get and scan them with markus socks verify and i used to scan any 2 similar ip's having port 1080 at that hour and to my luck most of them used to be ranges. This is just a Tip, Indian ranges work from 11am to 3pm and some indian ranges work from 4pm to 7pm. There may b so many other countries out there too, just scan them during office hours. and saturday and sunday are bad days for socks scanning!