UK Internet Report Mapping the Internet, one route at a time
Independent Internet topology mapping

101,443,676 IPv4 addresses observed

UK Internet Report builds a growing picture of Internet topology from traceroute observations collected from geographically distributed measurement points.

2.3619%
of the theoretical IPv4 address space observed
4,824,875
router addresses discovered
8,943,646
network connections mapped
44,710
autonomous systems represented
The long game
2.8 years Estimated time to observe 100% of the theoretical IPv4 address space at the recent discovery rate.
Current rate: 4,035,152 new addresses/day
Project milestone
2% target reached The project has now observed more than 2% of the theoretical IPv4 address space.
Next target: 5%  ·  Estimated time: 28.1 days
47.24% of 5% milestone completed 101,443,676 / 214,748,364

Project status — approaching a practical limit

UK Internet Report has now recorded more than 100 million observed IP addresses. The most recent complete topology artwork was successfully generated at approximately 82.8 million observed addresses. Since then, the dataset has grown beyond what the project's current hardware can practically process into a complete new topology artwork.

Generating a new map now requires enormous amounts of memory and processing time, with full uncached renders capable of running for days or exhausting the available resources entirely. Continuing to expand the dataset without being able to process and visualise it is becoming increasingly difficult to justify.

As a result, the project may have to conclude active collection at around the 100 million address mark. The existing dataset, statistics, historical maps and gallery will remain available, and work is continuing on alternative ways of processing the data.

If 100 million observed addresses does become the end of active collection, it is still considerably further than this experimental project was ever expected to reach.

Latest UK Internet Report topology artwork
Last successfully generated topology artwork — snapshot 10 October 2026 at 19:52 UTC. This image represents approximately 82.8 million observed IP addresses. The live dataset has since grown to 101,443,676 observed IP addresses, but a complete artwork at the current scale has not yet been successfully generated. Click the image for the full 10,000 × 10,000 pixel version.

A map built from observation

Rather than relying on a predefined Internet topology, UK Internet Report builds its map from routes actually observed during measurements. Intermediate routers become nodes and the relationships between consecutive hops become connections.

As more destinations and routes are observed, the picture becomes progressively richer.

Not a live dashboard

The public report is intentionally snapshot based. Measurements continue independently, while this website presents periodic views of the accumulated topology.

That makes it possible to preserve historical maps and watch the visible Internet grow over time without exposing operational measurement infrastructure.