wtf is public-ip-metadata?

This project provides a simple data file that maps blocks of public IP addresses to the countries they belong to. If you've ever wanted to know what country a given IP address is registered to, this file acts as a lookup table for that information. The data is stored in a JSON file, which is a common, structured text format that is easy for both humans and computers to read. Each entry in the file lists a starting IP address ("from") and an ending IP address ("to") that define a specific range. It then attaches a country code (like "cn" for China) and a three-digit country identifier (like "156") to that range. By checking which range a specific IP address falls into, you can determine its associated country. This would be useful for anyone building analytics tools, security software, or website features that need to respond differently based on where a visitor's internet traffic originates. For example, an e-commerce founder could use it to help filter out suspicious traffic, or a product manager could use it to estimate the geographic distribution of their user base from server logs. The project keeps things very minimal. It is essentially just a raw data resource compiled from public sources like Wikipedia and the creator's own open-source intelligence project. The README does not go into detail on how often the data is updated, how to technically integrate it into a specific application, or what the exact boundaries of each IP range represent beyond the country codes.