Autonomous System
AS19858 — GENSLER - M. Arthur Gensler Jr. & Associates, Inc.(US)
Last fetched
AS19858 is an Autonomous System operated by GENSLER - M. Arthur Gensler Jr. & Associates, Inc. and registered in US. As of Sun, 06 Sep 2026 15:16:07 GMT, it announces 2 routed IP prefixes and peers with 2 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS19858 announces 2 distinct routed prefixes. The 2-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.
Blast radius
Count of dependent hostnames if AS19858 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 AS19858 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 AS19858 is unique to AS19858 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS19858.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS19858"})-[: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.