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Autonomous System

AS18491VTLA - NTT Global Networks Incorporated(US)

Last fetched

AS18491 is an Autonomous System operated by VTLA - NTT Global Networks Incorporated and registered in US. As of Thu, 21 May 2026 06:22:51 GMT, it announces 10 routed IP prefixes and peers with 2 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

WHISPER CANON · AS18491Routing diversity5.2/10Peering density1.9/10MOAS conflict✓ noneThreat-feed listingsWHOIS transparencyResolver footprintcanon.whisper.security/asn/18491

Routing footprint

AS18491 announces 10 distinct routed prefixes. The 10-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
AS174COGENT-174 - Cogent Communications, LLCUS
AS2914NTT-DATA-2914 - NTT America, Inc.US

Blast radius

Approximate count of dependent hostnames if AS18491 disappeared from the routing table.

~90 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 06:22:51 GMT.

MOAS / hijack watch

Prefixes routed by AS18491 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 AS18491 is unique to AS18491 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS18491.

Cypher and MCP

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

MATCH (a:ASN {name: "AS18491"})-[: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.