MaxMind.GeoIP (nuget): Determine the country, region, city, latitude, and longitude associated with IP addresses worldwide. Uses the MaxMind GeoIP or GeoLite City or GeoLite Country (free) database which needs to be downloaded separately from http://www.maxmind.com/app/geolite
Keywords: ip|geoip|geolocation|ip2location|iptolocation|maxmind