5.131.128.0/18 — Whisper Internet Directory

IPv4 prefix

5.131.128.0/18(RU)

Last fetched Thu, 21 May 2026 06:15:50 GMT

5.131.128.0/18 is an IPv4 announced prefix originated by AS31200 (FNH-AS), allocated to RU.

Nutrition Label

Announcing ASN

AS31200FNH-AS

MOAS conflicts

No active MOAS conflicts for 5.131.128.0/18. This prefix is announced by its registered originator only.

Sample IPs

No IPv4 addresses are currently observed inside 5.131.128.0/18. Possible dark prefix or unobserved address space.

Related pages

Pivot deeper into the graph from 5.131.128.0/18.

Cypher and MCP

Reproduce the prefix profile directly against graph.whisper.security:

MATCH (ap:ANNOUNCED_PREFIX {name: "5.131.128.0/18"})
OPTIONAL MATCH (ap)-[:ROUTES]->(asn:ASN)
OPTIONAL MATCH (asn)-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (ap)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN ap.name AS cidr,
       asn.name AS asn,
       n.name AS network,
       c.name AS country

Or query Whisper from your own LLM workflow via the Whisper MCP server.