ipinfo.io - Simple IP address information.
ipwhois.io - ipwhois.io is an API that provides a users location (country, region, city, currency, currency symbol etc) based on their IP address. Get the accurate location information with our IP Lookup API and IP Location Database for any IP address.
ipdata.co - Get the Geolocation, Organisation, Currency, Timezone, Calling Code, Flag, Proxy, Tor and Threat intelligence data from any IPv4 or IPv6 address.
ipstack - ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
ifconfig.co - What is my IP address? — The best tool to find your own IP address, and information about it.
ifconfig.me - Get my IP Address