Daily updated list of IP addresses / CIDR blocks used by data centers, cloud service providers, servers, etc.

Use grepaddr to extract (grep) all kinds of addresses from stdin like URLs (incl. IPv4/IPv6), IP addresses & ranges (IPv4/IPv6), e-mail addresses, MAC addresses.

Updated lists of IP addresses/whitelists of good bots and crawlers. Includes GoogleBot, BingBot, DuckDuckBot, etc.

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

Windows command to compactly list the IP address of every network adapter, as well as the external IP address if the Internet is accessible.

👥 NSE (NMap Scripting Engine) Lua code for detecting IRC networks with IP address uncloaking weakness

Typesafe representations of network concepts in Scala

Higher-order Internet Protocol ('IP') Address Methods

Lists IP ranges of misc internet services.

A simple Ip Locator Tool

Small C# tool/library to calculate AllowedIPs for wireguard.

A small app to find your WAN IP addresses.

Monitor network interfaces for IP address changes

Networks with associated IP prefixes

The code behind http://192.168.noone.org/

Node.js implementation of the Crypto-PAn IP address pseudonymisation algorithm

IP address maths and collections library for Go

Automatically updated list of known datacentre IP addresses in IPv4 and IPv6 ranges

High speed conversion of IP addresses represented in CIDR notation into their corresponding start and end IPs, along with their respective subnet masks.