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Autonomous System

AS11203MATRIX-BROADBAND - Matrix Broadband(US)

Last fetched

AS11203 is an Autonomous System operated by MATRIX-BROADBAND - Matrix Broadband and registered in US. As of Wed, 20 May 2026 23:31:53 GMT, it announces 17 routed IP prefixes and peers with 2 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

WHISPER CANON · AS11203Routing diversity6.3/10Peering density1.9/10MOAS conflict✓ noneThreat-feed listingsWHOIS transparencyResolver footprintcanon.whisper.security/asn/11203

Routing footprint

AS11203 announces 17 distinct routed prefixes. The 17-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
AS3356LEVEL3 - Level 3 Parent, LLCUS
AS7018ATT-INTERNET4 - AT&T Enterprises, LLCUS

Blast radius

Approximate count of dependent hostnames if AS11203 disappeared from the routing table.

~3,494 hostnames depend on this network.Sampled from 10 prefixes, snapshot Wed, 20 May 2026 23:31:53 GMT.

MOAS / hijack watch

Prefixes routed by AS11203 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 AS11203 is unique to AS11203 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS11203.

Cypher and MCP

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

MATCH (a:ASN {name: "AS11203"})-[: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.