IPInfoDB

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Free Geolocation tools and APIs for country, region, city and time zone lookup by IP address

More Geocoding APIs

Locate and identify website visitors by IP address

HTTPS CORS ? apiKey

Real-time Geolocation & Reverse IP Lookup REST API

HTTPS CORS ? apiKey

Actinia is an open source REST API for geographical data that uses GRASS GIS

HTTPS CORS ? apiKey