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Autonomous System

AS36671 — TWOSIGMA2 - TWO SIGMA INVESTMENTS, LP(US)

Last fetched

AS36671 is an Autonomous System operated by TWOSIGMA2 - TWO SIGMA INVESTMENTS, LP and registered in US. As of Thu, 21 May 2026 16:33:07 GMT, it announces 16 routed IP prefixes and peers with 7 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

WHISPER CANON · AS36671Routing diversity6.1/10Peering density3.6/10MOAS conflict✓ noneThreat-feed listingsWHOIS transparencyResolver footprintcanon.whisper.security/asn/36671

Routing footprint

AS36671 announces 16 distinct routed prefixes. The 16-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

7 distinct peers via BGP. The first 7 are listed below.

Peer ASNOperatorCountry
AS174COGENT-174 - Cogent Communications, LLCUS
AS7018ATT-INTERNET4 - AT&T Enterprises, LLCUS
AS6461ZAYO-6461 - Zayo BandwidthUS
AS3491PCCWG-APAC-HK PCCW Global HK Ltd.HK
AS3356LEVEL3 - Level 3 Parent, LLCUS
AS3257GTT-BACKBONE GTTUS
AS1299TWELVE99 Arelion, fka Telia CarrierSE

Blast radius

Approximate count of dependent hostnames if AS36671 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 AS36671 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 AS36671 is unique to AS36671 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS36671.

Cypher and MCP

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

MATCH (a:ASN {name: "AS36671"})-[: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.