ipgeolocationapi

IP geolocation with ASN, timezone, currency and threat data, 5,000 keyless calls a day

Official docs outline

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IP2Proxy Detect proxy and VPN using IP address
IP99 IP geolocation with proxy, VPN and datacenter risk and the age of the evidence
ipapi.co Find IP address location information
ipapi.com Real-time Geolocation & Reverse IP Lookup REST API
IPGEO Unlimited free IP Address API with useful information
ipgeolocation IP Geolocation AP with free plan 30k requests per month
IPInfoDB Free Geolocation tools and APIs for country, region, city and time zone lookup by IP address
IPKit IP lookup with location, ASN/ISP and VPN/proxy/Tor signals
ipstack Locate and identify website visitors by IP address
IPstack Locate and identify website visitors by IP address
ipwhois IP geolocation with country, city, coordinates, ISP, timezone and flag data
Kakao Maps Kakao Maps provide multiple APIs for Korean maps