IPinfo

IPinfo is a widely used IP intelligence API that aggregates multiple pieces of information about an IP address into a single, easy-to-use endpoint. For any queried IP it can return: geolocation (country, region, city, lat/long), ASN (Autonomous System Number and name), ISP/carrier, company information (if the IP belongs to an identifiable company), hostname, timezone, and a set of privacy flags (VPN, proxy, hosting, Tor) when the paid privacy add-on is enabled. The free plan allows basic geolocation and ASN lookups with limited monthly calls — enough for development and light usage. IPinfo also provides bulk lookups, downloadable datasets, and SDKs for major languages. The platform is ideal for marketing geotargeting, fraud prevention (IP anomalies), and analytics (geo breakdowns). Enterprise plans add SLAs, expanded privacy detection, and dedicated data feeds.