The RIRs IPv4 Whois Map shown above is published by CAIDA and shows the characteristics of IPv4 “whois” data from the five Regional Internet Registries (RIRs). It can be seen in full screen size and zoomed in on a bit at CAIDA. It was created by The Measurement Factory for CAIDA. All of that is to say, the image is a means to visualize the scope of the Internet — not fully, but just to get something of an idea visually of its vastness.