the technology is called IP Geolocation. IP addresses are able to be resolved to countries, cities, towns and in some cases more granular than that, depending on the ISP. since around ten years ago but databases have matured since then. what I was trying to get at was masking your actual IP address by way of proxy server or VPN, to make it appear as if you are connecting from another place. it also aids anonymity and bypassing geoblocked content