Autonomous System

AS56173 — YAHOO-SG3 internet content provider(SG)

Last fetched Thu, 21 May 2026 10:35:25 GMT

AS56173 is an Autonomous System operated by YAHOO-SG3 internet content provider and registered in SG. As of Thu, 21 May 2026 10:35:25 GMT, it announces 31 routed IP prefixes and peers with 1 other Autonomous System in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS56173 announces 31 distinct routed prefixes. The 25-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
AS10310	YAHOO-1 - Yahoo Holdings Inc.	US

Blast radius

Approximate count of dependent hostnames if AS56173 disappeared from the routing table.

~14,179 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 10:35:25 GMT.

MOAS / hijack watch

Prefixes routed by AS56173 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 AS56173 is unique to AS56173 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS56173.

Cypher and MCP

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

MATCH (a:ASN {name: "AS56173"})-[: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.