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Country · ISO JP

Japan

Last fetched

Japan (JP) is home to 1,202 Autonomous Systems registered in the WhisperGraph infrastructure dataset. As of Fri, 14 Aug 2026 18:00:27 GMT, networks based in Japan announce 0 routed IP prefixes.

Top operators

ASNs based in Japan ranked by routed-prefix count.

No operators registered in Japan in the current dataset.

Top hosting concentrations

ASNs based in Japan ranked by hosted IPv4 count.

No hosting concentrations recorded for Japan.

Top 100 operators

The 100 largest ASNs based in Japanby routed-prefix count — a full crawl path into the country’s network operators.

No operators registered in Japan in the current dataset.

Sampled IP addresses

A sample of IPv4 addresses hosted in Japan’s largest networks. Each links to its full infrastructure profile.

No sampled IP addresses available for Japan in the current dataset.

Top registrars

Registrars seen most often across a sample of domains hosted in Japan’s largest networks. A sampled estimate, not a country-wide total.

No registrar concentration surfaced in the current sample for Japan. Hosting- and anycast-heavy networks often have sparse reverse-DNS-to-registration coverage.

Threat density

IPv4 addresses registered in Japan that appear on at least one threat feed.

0listed IPs (snapshot Fri, 14 Aug 2026 18:00:27 GMT)

Related pages

Every directory page links to related entities so you (and crawlers) can pivot through the graph.

Cypher and MCP

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

MATCH (a:ASN)-[:HAS_COUNTRY]->(c:COUNTRY {name: "JP"})
RETURN count(DISTINCT a) AS asn_count

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