Data-Shield IPv4 Blocklist Community provides an official, curated registry of IPv4 addresses identified as malicious. Updated continuously, this resource offers vital threat intelligence to bolster your Firewall and WAF instances,...

A library for working with IP addresses and networks in Go

OpenNetAdmin IP Address Management (IPAM) system

Documentation for https://ipapi.is/ and repository for the Geolocation, ASN and Hosting Ranges databases.

Quickly query the AWS IP Ranges

🌐 Get the LAN IPv4 address of the local machine based on the default gateway.

IP Address utilities

Arcus, developed by Sandia National Laboratories, is a C# library for calculating, parsing, formatting, converting and comparing both IPv4 and IPv6 addresses and subnets. It accounts for 128-bit numbers on 32-bit platforms.

Alfred 3 workflow to display internal/external IP addresses

Daily automatically updating list of known datacentre and crawler IP addresses in IPv4 and IPv6 ranges

🤖IP address to autonomous system number (ASN)

Sequential IP address lookup in the routing table of routers has complexity O(n). This lookup can be reduced to O(1) time complexity, trading of with the space complexity which can be exponential in the worst case i.e. exp(2,33) - 1 on implementing tries.

PHP IP address anonymizer.

A simple HTML/JS/PHP webapp displaying client internal- and external IP information.

Breinify's Java API Library

Breinify's Node.js API Library

Python GUI based Comprehensive Suite for Mastering IP address and Subnet Calculations

A program that displays information about the adapters on your computer. This includes ip address, MAC address, host name, etc.

This WordPress Plugin allows you to block all visitors from Russia & Belarus and display a custom message to turn against Putin and to stop the war.

Breinify's Python API Library