Internet Query Tools
- Looking Glass(Hurricane Electric Internet Services) -Used for viewing routing information on the internet
- Toolkit for BGP Autonomous System Number Information
- Who Is(Whois.net) – Used to determine the registrant of Internet resources such as IP addresses
Subnet Calculators
- IPv4 Calculator(subnetcalculator.com) – An IPv4 Subnet Calculator to help you calculate the number of hosts, start IP and end IP of your range, network and broadcast
- IPv6 Calculator(subnetonline.com) – An IPv6 Subnet Calculator for mapping and creating multiple hierarchical subnets (converting multiple subnet networks from IPv4 to IPv6).
IPv4 Depletion Dates (www.ipdepletion.com)
- Asia/Pacific (APNIC): 2011-05-07
- Europe and Middle East (RIPE): 2012-06-13
- North America (ARIN): 2013-05-16
- Africa (AfriNIC): 2015-03-02
- South America (LACNIC): 2016-03-19
Other Useful Information
- BGP Routing Table Analysis(potoroo.net) – Shows growth of the Internet (BGP) routing table from 1994 to present
- The Future of IP Addressing– Keynote presentation at SANOG by Joe Abley
- Understanding IP Addressing– A paper on IPv4 Addressing written by Chuck Semeria – NSD Marketing, 3Com Corporation
- IPv6, the Next Generation Network Playground- A presentation on IPv6 Addressing (Joe Klein)