Autonomous System

AS398772 — FIBERASN-US - Fiber Optical Network LLC(US)

Last fetched Thu, 21 May 2026 10:38:07 GMT

AS398772 is an Autonomous System operated by FIBERASN-US - Fiber Optical Network LLC and registered in US. As of Thu, 21 May 2026 10:38:07 GMT, it announces 6 routed IP prefixes and peers with 1 other Autonomous System in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS398772 announces 6 distinct routed prefixes. The 6-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

1 distinct peers via BGP. The first 1 are listed below.

Peer ASN	Operator	Country
AS1299	TWELVE99 Arelion, fka Telia Carrier	SE

Blast radius

Approximate count of dependent hostnames if AS398772 disappeared from the routing table.

~10 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 10:38:07 GMT.

MOAS / hijack watch

Prefixes routed by AS398772 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 AS398772 is unique to AS398772 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS398772.

Cypher and MCP

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

MATCH (a:ASN {name: "AS398772"})-[: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.