Read MaxMind DB files and look up IP addresses| MetaCPAN
MaxMind DB| maxmind.github.io
In this tutorial we demonstrate how to import a geolocation CSV file into a local SQL database and setup automatic updates. You can also learn about how to perform plenty of other tasks with our other tutorials and code samples here at DB-IP.| db-ip.com
Here you'll find IP geolocation database downloads providing IP to Location. They are updated daily and available in CSV and MMDB format. Learn more about our downloads here and get them today, whether you need IP to country, location, ISP, or location and ISP mapping.| db-ip.com
Time Zone Database| www.iana.org