ip2region
Ip2region is an offline IP-to-Region localization library and IP data
ip2region is an offline IP geolocation library and data-management framework supporting both IPv4 and IPv6. It ships with raw IP datasets and optimized XDB database files for city-level region lookup. Returned records can include country, province, city, ISP, and ISO country-code information. The XDB format supports large datasets, deduplication, compression, and customizable region fields. Query implementations are available for many languages, including Go, Java, Python, PHP, Rust, C, C++, JavaScript, C#, Lua, Erlang, and others. ...