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There have been a number of services that allow a lookup of an IP address or Autonomous System Number (ASN) and return information about that IP number resource. The Regional Internet Registries (RIRs) each operate a database that records (among other data items) the number resource and the details of…
The Regional Internet Registries (RIRs) each operate a database that records (among other data) the number resource and the details of the entity that currently holds the resource allocation. The data can be queried using individual queries using the whois query tool, by giving an IP Address or an Autonomous…
It’s time for another annual roundup from the world of IP addresses. Let’s see what has changed in the past 12 months in addressing the Internet and look at how IP address allocation information can inform us of the changing nature of the network itself. Back around 1992, the IETF…
The first part of this annual report on BGP for the year 2025 looked at the size of the routing table and some projections of table growth for both IPv4 and IPv6. However, the scalability of BGP as the Internet’s routing protocol is not just dependant on the number of…
At the start of each year, it’s been my practice to report on the behaviour of the Internet’s inter-domain routing system over the previous 12 months, looking in some detail at some metrics from the routing system that can show the essential shape and behaviour of the underlying interconnection fabric…
Where are you? Or, for that matter, where am I? Let’s look at location on the Internet, and how the Internet “knows” where I am. With devices that have GNSS (Global Navigation Satellite System) enabled, such as my mobile device, where I am is an easy question to answer. If…
The North American Network Operators Group (NANOG) can trace its antecedents to the group of so-called “Mid Level” networks that acted as feeder networks for the NSFNET, the backbone of the North American Internet in the first part of the 1990’s. NANOG’S first meeting has held in June 1994, and…
In September 2025 I wrote an article on Starlink and geolocation. This work was prompted by a question relating to the makeup of ISPs in the country of Yemen, where the data analysis point to a result where Starlink had some 6 million users in that country, or some 60%…
At APNIC Labs we publish a number of measurements of the deployment of various technologies that are being adopted on the Internet. Here I will look at how we measure the adoption of IPv6. IPv6 By 1990 it was clear that IP had a problem. It was still a tiny…
This article is based on a presentation I made to the ARIN 56 meeting in October 2025. Here I’d like to elevate the typical Regional Internet Registry policy conversations above the day-to-day mundanities of address allocation policies with its vocabulary of address block sizes and needs-based justifications, fairness and efficiency…
