Autonomous System

AS2501 — UTnet - The University of Tokyo(JP)

Last fetched Sun, 06 Sep 2026 12:48:10 GMT

AS2501 is an Autonomous System operated by UTnet - The University of Tokyo and registered in JP. As of Sun, 06 Sep 2026 12:48:10 GMT, it announces 6 routed IP prefixes and peers with 1 other Autonomous System in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS2501 announces 6 distinct routed prefixes. The 6-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

1 distinct peers via BGP. The first 1 are listed below.

Peer ASN	Operator	Country
AS2907	SINET-AS - Research Organization of Information and Systems, National Institute of Informatics	JP

Blast radius

Count of dependent hostnames if AS2501 disappeared from the routing table.

19,725 hostnames depend on this network.Exact count across all 6 announced prefixes. Snapshot Wed, 15 Jul 2026 05:00:54 GMT.

MOAS / hijack watch

Prefixes routed by AS2501 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 AS2501 is unique to AS2501 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS2501.

Cypher and MCP

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

MATCH (a:ASN {name: "AS2501"})-[: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.