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Autonomous System

AS4354ERM-026 - UNIVERSAL HEALTH SERVICES(US)

Last fetched

AS4354 is an Autonomous System operated by ERM-026 - UNIVERSAL HEALTH SERVICES and registered in US. As of Wed, 20 May 2026 21:54:18 GMT, it announces 1 routed IP prefix and peers with 2 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

WHISPER CANON · AS4354Routing diversity1.5/10Peering density1.9/10MOAS conflict✓ noneThreat-feed listingsWHOIS transparencyResolver footprintcanon.whisper.security/asn/4354

Routing footprint

AS4354 announces 1 distinct routed prefix. The 1-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

2 distinct peers via BGP. The first 2 are listed below.

Peer ASNOperatorCountry
AS7018ATT-INTERNET4 - AT&T Enterprises, LLCUS
AS11427TWC-11427-TEXAS - Charter Communications IncUS

Blast radius

Approximate count of dependent hostnames if AS4354 disappeared from the routing table.

~55 hostnames depend on this network.Sampled from 10 prefixes, snapshot Wed, 20 May 2026 21:54:18 GMT.

MOAS / hijack watch

Prefixes routed by AS4354 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 AS4354 is unique to AS4354 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS4354.

Cypher and MCP

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

MATCH (a:ASN {name: "AS4354"})-[: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.