Autonomous System

AS21235 — ADVANCED-SYSTEMHAUS ADVANCED Systemhaus GmbH(DE)

Last fetched Thu, 21 May 2026 06:22:36 GMT

AS21235 is an Autonomous System operated by ADVANCED-SYSTEMHAUS ADVANCED Systemhaus GmbH and registered in DE. As of Thu, 21 May 2026 06:22:36 GMT, it announces 4 routed IP prefixes and peers with 1 other Autonomous System in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS21235 announces 4 distinct routed prefixes. The 4-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
AS12731	IPHH IPHH Internet Port Hamburg GmbH	DE

Blast radius

Approximate count of dependent hostnames if AS21235 disappeared from the routing table.

~483 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 06:22:36 GMT.

MOAS / hijack watch

Prefixes routed by AS21235 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 AS21235 is unique to AS21235 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS21235.

Cypher and MCP

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

MATCH (a:ASN {name: "AS21235"})-[: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.