This is the Maxmind Geo Lite City data and stored as the file
GeoLiteCity.dat. It is intended for testing purposes with packages like geoip-stream and so the data may become stale and hence it is recommended fresh data be obtained from Maxmind GeoLiteCity.
npm install geolitecity
var GeoIpStream = ;var geoStream = dataFile: './node_modules/geolitecity/GeoLiteCity.data'