Autonomous System

AS17520 — JPNICJPASNBLOCK Japan Network Information Center(JP)

Last fetched Wed, 20 May 2026 21:51:04 GMT

AS17520 is an Autonomous System operated by JPNICJPASNBLOCK Japan Network Information Center and registered in JP. As of Wed, 20 May 2026 21:51:04 GMT, it announces 0 routed IP prefixes and peers with 0 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS17520 announces 0 distinct routed prefixes. The 0-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

AS17520 does not announce any prefixes in the current snapshot.

Peering ecosystem

0 distinct peers via BGP. The first 0 are listed below.

AS17520 has no observed peering relationships in the current snapshot.

Blast radius

Approximate count of dependent hostnames if AS17520 disappeared from the routing table.

No dependent hostnames recorded for this network.Snapshot Wed, 20 May 2026 21:51:04 GMT.

MOAS / hijack watch

Prefixes routed by AS17520 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.

No active MOAS conflicts. Every prefix announced by AS17520 is unique to AS17520 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS17520.

Cypher and MCP

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

MATCH (a:ASN {name: "AS17520"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS country

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