MaxMind Inc. publishes a set of IP geolocation databases and related open source libraries. They can be used to map IP addresses to geographical locations and other information.
If libmaxminddb library isn’t already installed or available as a package for your platform, you can get it at https://github.com/maxmind/libmaxminddb.
We provide packages for Windows at https://anonsvn.wireshark.org/wireshark-win64-libs/trunk/packages/ and https://anonsvn.wireshark.org/wireshark-win32-libs/trunk/packages/.