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Routed-prefix directory

Routed prefixes

1,412,498

BGP-announced prefixes indexed in WhisperGraph · last refreshed

Whisper Internet Directory documents 1,412,498 BGP-announced IP prefixes — every CIDR block observed in the public BGP routing table. Each prefix has a canonical page at /prefix/<cidr> listing its announcing ASN, contained IP-address sample, active MOAS conflicts, and routing history.

How to find a prefix page

Append any CIDR-formatted prefix (e.g. 1.1.1.0/24) to /prefix/. The page is generated on first visit and cached at the edge for subsequent reads.

https://canon.whisper.security/prefix/<cidr>

Worked examples:

Popular examples

A hand-picked sample of tier-1 cloud, CDN, and DNS-provider prefixes — not a ranking, and not the directory's extent. Every BGP-announced prefix has a page; try any CIDR in the URL bar.

Browse by first octet

Walk the full announced-prefix inventory by first octet of the network address. Each tile opens a paginated browse page of every announced prefix in that /8 address space.

Discover routed prefixes

A rotating sample of routed prefixes from the Whisper Internet Directory — fresh picks to explore beyond the page you arrived on.

Cypher and MCP

Reproduce the headline count directly against graph.whisper.security:

CALL db.labels() YIELD * WHERE label = "ANNOUNCED_PREFIX" RETURN count

Or query Whisper from your own LLM workflow via the Whisper MCP server.

Related pages