Autonomous System
AS15517 — NETSTREAM-CH - Netstream Holding AG(CH)
Last fetched
AS15517 is an Autonomous System operated by NETSTREAM-CH - Netstream Holding AG and registered in CH. As of Sun, 06 Sep 2026 16:07:58 GMT, it announces 4 routed IP prefixes and peers with 4 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS15517 announces 4 distinct routed prefixes. The 4-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
Peering ecosystem
4 distinct peers via BGP. The first 4 are listed below.
Blast radius
Count of dependent hostnames if AS15517 disappeared from the routing table.
3,896 hostnames depend on this network.Exact count across all 4 announced prefixes. Snapshot Sun, 07 Jun 2026 16:00:10 GMT.
MOAS / hijack watch
Prefixes routed by AS15517 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.
| Prefix | Conflicting ASN | Operator |
|---|---|---|
| 213.133.240.0/21 | AS212865 | NETCONNECT - netconnect AG |
Threat posture
Related pages
Pivot deeper into the graph from AS15517.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS15517"})-[: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.