Autonomous System

AS28191 — JR & JS ENGENHARIA E COMERCIO LTDA(BR)

Last fetched Wed, 20 May 2026 21:58:22 GMT

AS28191 is an Autonomous System operated by JR & JS ENGENHARIA E COMERCIO LTDA and registered in BR. As of Wed, 20 May 2026 21:58:22 GMT, it announces 61 routed IP prefixes and peers with 13 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS28191 announces 61 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

13 distinct peers via BGP. The first 13 are listed below.

Peer ASN	Operator	Country
AS6939	HURRICANE - Hurricane Electric LLC	US
AS273431	TURBOBRIDGE - TurboBridge	BR
AS272699	NOVA PORTONET TELECOMUNICACOES LTDA ME	BR
AS271348	SUNDAICHI University of Nagasaki	BR
AS270997	PERDOESNET LTDA	BR
AS268692	G T Lopes & Ltda	BR
AS267613	DGCL1-AS	BR
AS266643	APISIT_AS	BR
AS263444	QST Telecom LTDA - ME	BR
AS53153	MPC INTERNET LTDA	BR
AS52635	EMPRO TECNOLOGIA E INFORMACAO	BR
AS37721	CAMIX-Peering-AS	BF
AS28182	DIGITRO TECNOLOGIA LTDA.	BR

Blast radius

Approximate count of dependent hostnames if AS28191 disappeared from the routing table.

~378 hostnames depend on this network.Sampled from 10 prefixes, snapshot Wed, 20 May 2026 21:58:22 GMT.

MOAS / hijack watch

Prefixes routed by AS28191 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 AS28191 is unique to AS28191 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS28191.

Cypher and MCP

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

MATCH (a:ASN {name: "AS28191"})-[: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.