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

5,177,760 IPv4 addresses observed

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

0.1206%
of the theoretical IPv4 address space observed
560,825
router addresses discovered
1,212,388
network connections mapped
18,434
autonomous systems represented
The long game
4.6 years Estimated time to observe 100% of the theoretical IPv4 address space at the recent discovery rate.
Current rate: 2,569,874 new addresses/day
Project milestone
14.7 days Estimated time to reach the project's goal of observing 1% of the theoretical IPv4 address space.
12.06% of milestone completed 5,177,760 / 42,949,672
Latest UK Internet Report topology artwork
Latest topology artwork — snapshot 20 September 2026 at 07:31 UTC. 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.