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Autonomous System

AS20723MGI CZ.MGI autonomous system, Czech Republic(CZ)

Last fetched

AS20723 is an Autonomous System operated by MGI CZ.MGI autonomous system, Czech Republic and registered in CZ. As of Thu, 21 May 2026 10:24:10 GMT, it announces 8 routed IP prefixes and peers with 6 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

WHISPER CANON · AS20723Routing diversity4.8/10Peering density3.4/10MOAS conflict✓ noneThreat-feed listingsWHOIS transparencyResolver footprintcanon.whisper.security/asn/20723

Routing footprint

AS20723 announces 8 distinct routed prefixes. The 8-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

6 distinct peers via BGP. The first 6 are listed below.

Peer ASNOperatorCountry
AS174COGENT-174 - Cogent Communications, LLCUS
AS204405DURNETCZ
AS47232ISPALLIANCECZ
AS30058FDCSERVERS - FDCservers.netUS
AS3257GTT-BACKBONE GTTUS
AS2852CESNET2CZ

Blast radius

Approximate count of dependent hostnames if AS20723 disappeared from the routing table.

~7,506 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 10:24:10 GMT.

MOAS / hijack watch

Prefixes routed by AS20723 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 AS20723 is unique to AS20723 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS20723.

Cypher and MCP

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

MATCH (a:ASN {name: "AS20723"})-[: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.