ipinfo.io - Simple IP address information.
GRC Port Scan - GRC Internet Security Port Scanner. Tests for open ports on your external IP address.
ipgeolocation.io - Free IP Geolocation API and Accurate GeoIP Lookup Location Database
My Public IP - My Public IP is a utility to let you know through which internet IP the world see you.
ipdata.co - Get the Geolocation, Organisation, Currency, Timezone, Calling Code, Flag, Proxy, Tor and Threat intelligence data from any IPv4 or IPv6 address.
What is My IP Live - Find your IPv4 and IPv6 just by visiting whatismyip.live - complete IP geolocation is also provided along with some other useful IP tools.