Browse Every IPv4 /8 with the Ranges Explorer

The new Ranges Explorer lays out the entire IPv4 address space as its 256 top-level /8 blocks — the legacy "Class A" networks. See at a glance which blocks are allocated, reserved, or in active use, and click straight through to any range for its allocation source, ownership, geolocation, and change history.

It pairs with the homepage's new direct links to RIRs, organizations, and ASNs — fewer clicks to the data you came for.