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Autonomous System

AS3356

Last fetched

AS3356 is operated by LEVEL3 - Level 3 Parent, LLC, registered in US, and announces 2,185 prefixes to 6,237 BGP neighbours. AS3356 has a reputation score of 8.4 (REPUTABLE); 772 of its 29,498,048 announced IPv4 addresses appear on threat feeds.

Nutrition Label

WHISPER CANON · AS3356Routing diversity10.0/10Peering density10.0/10MOAS conflict⚠ 5 conflictsThreat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/asn/3356

Routing footprint

Announced prefixes
2,185
BGP neighbours
6,237
RPKI ROAs
1,388
MOAS conflicts
5
CAIDA AS-rank
1
Customer-cone ASNs
54,691
Facilities
6
Internet exchanges
3
Customer degree
6,507
Peer degree
74
Provider degree
1

Routing posture

Hijack posture score
0.55
Origin mismatches
3
Route leaks
8

Leak types observed: TYPE2_LATERAL_PEER_TO_PEER.

Signals

  • ddos-mitigationProvides DDoS scrubbing or absorption for its customers.

Infrastructure presence

Route origin authorizations

A sample of 10 of this network’s 1,388 ROAs.

Upstreams

The networks that most often share an observed BGP path with AS3356.

Blast radius

Announced IPv4 addresses
29,498,048
Threat-listed addresses
772
Threat density
0.0026 %
Routed prefixes
2,057

How much of the internet this network is responsible for, and how much of that address space currently appears on a threat feed. Coverage: computed.

Peering ecosystem

A sample of 25 of this network’s 6,237 BGP neighbours.

MOAS / hijack watch

5 announced prefixes conflict with AS3356 — another network announces the same address space. A sample:

Reputation

8.4reputation score (REPUTABLE)

AS3356 (LEVEL3 - Level 3 Parent, LLC, US) has a reputation score of 74.8 (REPUTABLE).

Threat density
80.2/100
Graph metrics
90.0/100
Historical behaviour
85.0/100
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
Level 3 Parent, LLC
RIR
ARIN
Registered
Fri, 10 Mar 2000 05:00:00 GMT
Abuse contact
abuse@level3.com

This is the abuse contact WhisperGraph holds for the network.

Threat-feed evidence

Related pages

Pivot from AS3356 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
Run yourself →

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