>I don't think IPs were ever a viable tracking tool besides detecting the country.
That depends on the ISP.
Many cable ISPs assign DHCP blocks to nodes that are defined by geographical areas. These can then be correlated with cellphone apps on wireless connections that also return GPS data to the collector. After a few thousand samples you get a really good picture of IP blocks that move and ones that are somewhat static.
That depends on the ISP.
Many cable ISPs assign DHCP blocks to nodes that are defined by geographical areas. These can then be correlated with cellphone apps on wireless connections that also return GPS data to the collector. After a few thousand samples you get a really good picture of IP blocks that move and ones that are somewhat static.