Scrape the IP ranges of cloudproviders and check if a IP belongs to a particular CloudProvider. This can also help to speed up your CSIRT activities

NextTrace, an open source visual route tracking CLI tool

Official Command Line Interface for the IPinfo API (IP geolocation and other types of IP data)

ptr is a Go script that allows you to find hostnames by ip addresses. Reverse IP lookup by resolving the PTR record.

Ip2region (2.0 - xdb) is a offline IP address manager framework and locator, support billions of data segments, ten microsecond searching performance. xdb engine implementation for many programming languages

Use IP2Location geolocation database to lookup the geolocation information with IP2Location Go Package. It can be used to determine country, region, city, coordinates, zip code, time zone, ISP, domain name, connection type, area code, weather, MCC, MNC, mobile brand name, elevation, usage type, address type and IAB category that any IP address o…

IP address lookup service

Check if user is behind a VPN or proxy via simple HTTP request. Written in Go.

Look up route origin information from the command-line

lip is a powerful CLI tool for network administrators, offering a range of functions including IP lookup, bandwidth test, WHOIS lookup, reverse DNS lookup, SSL certificate check, TCPing, and Telnet.

A Go library for reading, formatting, sorting, lookup and converting IP-addresses and IP-blocks

fetch information on ip addresses

Unofficial Golang bindings (library) for https://ipstack.com/