Autonomous System

AS208434

Last fetched Wed, 21 Oct 2026 10:54:06 GMT

AS208434 is operated by JAHN - Martin Jahn, registered in DE, and announces 6 prefixes to 2 BGP neighbours. AS208434 has a reputation score of 25.0 (SUSPICIOUS); 0 of its 0 announced IPv4 addresses appear on threat feeds.

Nutrition Label

Routing footprint

Announced prefixes: 6
BGP neighbours: 2
RPKI ROAs: 5
MOAS conflicts: 0
CAIDA AS-rank: 81,055
Customer-cone ASNs: 1
Facilities: 101
Internet exchanges: 6
Customer degree: 0
Peer degree: 0
Provider degree: 0

Infrastructure presence

Internet exchanges (6 total)

Route origin authorizations

A sample of 5 of this network’s 5 ROAs.

2a06:e881:6900::/48 · max length /48
2a06:e881:6902::/48 · max length /48
2a06:e881:6903::/48 · max length /48
2a06:e881:690c::/48 · max length /48
2a06:e881:690f::/48 · max length /48

Upstreams

The networks that most often share an observed BGP path with AS208434.

AS49432 · 2 shared paths
AS48362 · 2 shared paths
AS1299 · 1 shared path
AS6939 · 1 shared path
AS47526 · 1 shared path

Blast radius

Announced IPv4 addresses: 0
Threat-listed addresses: 0
Threat density: 0.0000 %
Routed prefixes: 0

How much of the internet this network is responsible for, and how much of that address space currently appears on a threat feed. Coverage: no-routed-space.

Peering ecosystem

A sample of 2 of this network’s 2 BGP neighbours.

HURRICANE - Hurricane Electric LLC · AS6939
HANDILY-NETWORKS - handily networks GmbH · AS47526

Reputation

25.0reputation score (SUSPICIOUS)

AS208434 (JAHN - Martin Jahn, DE) has a reputation score of 45.0 (SUSPICIOUS). This ASN shows suspicious characteristics.

Threat density: 50.0/100
Graph metrics: 55.0/100
Historical behaviour: 50.0/100
Prefix age: 20.0/100

These are reputation signals about the network as a whole, not a threat-feed verdict about a specific address.

Registration

Registered to: Martin Jahn
RIR: RIPE
Registered: Mon, 05 Aug 2019 10:17:31 GMT
Abuse contact: martin.jahn@nixxda.net

This is the abuse contact WhisperGraph holds for the network.

Threat-feed evidence

Pivot from AS208434 into the prefixes, peers and country it routes for.

Queries

This ASN's full card — routing footprint, peers, conflicts and RIR facts.


MATCH (a:ASN {name: $asn})
OPTIONAL MATCH (a)-[:HAS_NAME]->(an:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(co:COUNTRY)
OPTIONAL MATCH (a)-[:REGISTERED_BY]->(org:ORGANIZATION)
WITH a,
     collect(an.name) AS operatorNames,
     collect(co.name) AS countries,
     collect(org.name) AS organizations
OPTIONAL MATCH (a)-[:ROUTES]->(prefix:ANNOUNCED_PREFIX)
WITH a, operatorNames, countries, organizations,
     collect(prefix.name)[0..25] AS samplePrefixes
OPTIONAL MATCH (a)-[:BGP_NEIGHBOR]-(peer:ASN)
OPTIONAL MATCH (peer)-[:HAS_NAME]->(peern:ASN_NAME)
WITH a, operatorNames, countries, organizations, samplePrefixes,
     collect({asn: peer.name, operator: peern.name})[0..25] AS samplePeers
OPTIONAL MATCH (a)<-[:CONFLICTS_WITH]-(conflict:ANNOUNCED_PREFIX)
WITH a, operatorNames, countries, organizations, samplePrefixes, samplePeers,
     collect(conflict.name)[0..25] AS sampleConflicts
OPTIONAL MATCH (a)-[:HAS_SIGNAL]->(sig:THREAT_SIGNAL_TYPE)
WITH a, operatorNames, countries, organizations, samplePrefixes, samplePeers, sampleConflicts,
     collect(DISTINCT sig.name) AS signals
OPTIONAL MATCH (a)-[:IX_MEMBER]->(ix:INTERNET_EXCHANGE)
WITH a, operatorNames, countries, organizations, samplePrefixes, samplePeers, sampleConflicts, signals,
     collect({id: ix.id, name: ix.name})[0..25] AS sampleExchanges
OPTIONAL MATCH (a)-[:AS_PRESENT_AT]->(fac:FACILITY)
WITH a, operatorNames, countries, organizations, samplePrefixes, samplePeers, sampleConflicts, signals, sampleExchanges,
     collect({id: fac.id, name: fac.name})[0..25] AS sampleFacilities
OPTIONAL MATCH (roa:ROA)-[:ROA_AUTHORIZES_ORIGIN]->(a)
WITH a, operatorNames, countries, organizations, samplePrefixes, samplePeers, sampleConflicts, signals, sampleExchanges, sampleFacilities,
     collect({prefix: roa.prefix, maxLength: roa.maxLength})[0..10] AS sampleRoas
CALL { WITH a MATCH (a)-[:ROUTES]->(p:ANNOUNCED_PREFIX) RETURN count(p) AS prefixCount }
CALL { WITH a MATCH (a)-[:BGP_NEIGHBOR]-(n:ASN) RETURN count(n) AS peerCount }
CALL { WITH a MATCH (a)<-[:CONFLICTS_WITH]-(c:ANNOUNCED_PREFIX) RETURN count(c) AS conflictCount }
CALL { WITH a MATCH (a)-[:ROA_AUTHORIZES_ORIGIN]-(r:ROA) RETURN count(r) AS roaCount }
CALL { WITH a MATCH (a)-[:AS_PRESENT_AT]->(f:FACILITY) RETURN count(f) AS facilityCount }
CALL { WITH a MATCH (a)-[:IX_MEMBER]->(x:INTERNET_EXCHANGE) RETURN count(x) AS ixpCount }
RETURN a.name AS name,
       a.rir AS rir,
       a.orgName AS orgName,
       a.asRank AS asRank,
       a.coneAsns AS coneAsns,
       a.conePrefixes AS conePrefixes,
       a.coneAddresses AS coneAddresses,
       a.registrationDate AS registrationDate,
       a.reputationScore AS reputationScore,
       a.reputationCategory AS reputationCategory,
       a.overallThreatLevel AS overallThreatLevel,
       a.abuseEmail AS abuseEmail,
       a.hijackPostureScore AS hijackPostureScore,
       a.hijackOriginMismatchCount AS hijackOriginMismatchCount,
       a.routeLeakCount AS routeLeakCount,
       a.routeLeakTypes AS routeLeakTypes,
       a.degreeCustomer AS degreeCustomer,
       a.degreePeer AS degreePeer,
       a.degreeProvider AS degreeProvider,
       operatorNames, countries, organizations,
       samplePrefixes, samplePeers, sampleConflicts,
       signals, sampleExchanges, sampleFacilities, sampleRoas,
       prefixCount, peerCount, conflictCount, roaCount, facilityCount, ixpCount

Run yourself →

The five networks that most often share this ASN's observed BGP paths.


MATCH (a:ASN {name: $asn})<-[:BGP_PATH]-(b:BGP_PATH_OBSERVATION)
WITH b LIMIT 200
MATCH (b)-[:BGP_PATH]->(up:ASN)
WHERE up.name <> $asn
WITH up.name AS asn, count(*) AS observations
ORDER BY observations DESC
LIMIT 5
RETURN asn, observations