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Autonomous System

AS27451 — USO-ASN - US Oncology, Inc.(US)

Last fetched

AS27451 is an Autonomous System operated by USO-ASN - US Oncology, Inc. and registered in US. As of Thu, 21 May 2026 14:21:54 GMT, it announces 3 routed IP prefixes and peers with 1 other Autonomous System in the WhisperGraph BGP dataset.

Nutrition Label

WHISPER CANON · AS27451Routing diversity3.0/10Peering density1.2/10MOAS conflict✓ noneThreat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/asn/27451

Routing footprint

AS27451 announces 3 distinct routed prefixes. The 3-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 ASNOperatorCountry
AS174COGENT-174 - Cogent Communications, LLCUS

MOAS / hijack watch

Prefixes routed by AS27451 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 AS27451 is unique to AS27451 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS27451.

Cypher and MCP

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

MATCH (a:ASN {name: "AS27451"})-[: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.