Autonomous System
AS213959 — ALTSTACK(NL)
Last fetched
AS213959 is an Autonomous System operated by ALTSTACK and registered in NL. As of Thu, 21 May 2026 16:46:28 GMT, it announces 2 routed IP prefixes and peers with 5 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS213959 announces 2 distinct routed prefixes. The 2-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
Peering ecosystem
5 distinct peers via BGP. The first 5 are listed below.
Blast radius
Approximate count of dependent hostnames if AS213959 disappeared from the routing table.
Blast radius: Computing — check back later. The precompute pipeline refreshes this panel within a few days.
MOAS / hijack watch
Prefixes routed by AS213959 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 AS213959 is unique to AS213959 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS213959.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS213959"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS countryOr query Whisper from your own LLM workflow via the Whisper MCP server.