Ive literally called my cell phone company to ask if I could block entire area codes...in one case I actually asked them to block Texas. Unfortunately that feature is not available.
Hah, the phone equivalent to when Hiroyuki / 4chan banned all Russian IPs during a DDOS attack.
I spent a solid couple minutes trying to find the screencap, but it went down in 4chan history for the distinct Hiroyuki-style response, that went something like
>Many DDOS IPs were from Russia. So, we block Russian IPs. Now, DDOS ended.