Autonomous System
AS31477
Last fetched
AS31477 is operated by DUOCAST-AS - Duocast B.V., registered in NL, and announces 55 prefixes to 19 BGP neighbours. AS31477 has a reputation score of 9.5 (REPUTABLE); 0 of its 30,720 announced IPv4 addresses appear on threat feeds.
Nutrition Label
Routing footprint
- Announced prefixes
- 55
- BGP neighbours
- 19
- RPKI ROAs
- 31
- MOAS conflicts
- 0
- CAIDA AS-rank
- 2,024
- Customer-cone ASNs
- 15
- Facilities
- 91
- Internet exchanges
- 4
- Customer degree
- 12
- Peer degree
- 110
- Provider degree
- 4
- 37.9.160.0/21
- 45.82.188.0/22
- 82.150.139.0/24
- 83.137.146.0/24
- 83.137.144.0/21
- 83.137.151.0/24
- 87.238.171.0/24
- 87.238.168.0/21
- 89.188.0.0/21
- 89.188.0.0/20
- 89.188.8.0/21
- 89.188.0.0/19
- 89.200.200.0/24
- 89.200.200.0/21
- 91.196.104.0/24
- 91.196.105.0/24
- 91.196.106.0/24
- 91.196.107.0/24
- 91.198.178.0/24
- 91.206.136.0/23
- 91.209.192.0/24
- 91.213.95.0/24
- 91.220.82.0/24
- 93.184.96.0/20
- 185.80.245.0/24
Infrastructure presence
Facilities (91 total)
- NIKHEF Amsterdam
- Telehouse - London (Docklands North)
- Equinix LD8 - London, Docklands
- Telehouse - London (Docklands East)
- Digital Realty London LHR20
- Digital Realty BRU1 - Brussels
- Global Switch Amsterdam
- Digital Realty AMS3/5/7/8/10 - Amsterdam
- Digital Realty AMS17 - Amsterdam
- Equinix AM7 - Amsterdam, Kuiperberweg
- ITENOS Frankfurt (FRA1)
- Equinix FR5 - Frankfurt, KleyerStrasse
- Digital Realty Frankfurt FRA1-27
- Telehouse - Paris 2 (Voltaire - Léon Frot)
- Equinix AM8 - Amsterdam, Gyroscoopweg
- EdgeConneX Munich (EDCMUC01)
- Telehouse - Frankfurt
- Digital Realty Dusseldorf DUS1-3
- Digital Realty AMS9 - Amsterdam
- Equinix EN1 - Enschede
- Digital Realty Copenhagen CPH1-3
- GlobalConnect Taastrup 1 (CPH1)
- Speedbone Berlin
- NorthC Duesseldorf
- Digital Realty Dublin DUB1-2
Route origin authorizations
A sample of 10 of this network’s 31 ROAs.
- 2a01:1b0:4000::/34
- 2a01:1b0:8000::/34
- 2a01:1b0::/34
- 2a01:1b0:c000::/34
- 185.180.96.0/22 · max length /24
- 185.80.245.0/24 · max length /24
- 185.80.246.0/24 · max length /24
- 193.138.248.0/22 · max length /24
- 193.164.144.0/24 · max length /24
- 194.13.12.0/23 · max length /24
Upstreams
The networks that most often share an observed BGP path with AS31477.
Blast radius
- Announced IPv4 addresses
- 30,720
- Threat-listed addresses
- 0
- Threat density
- 0.0000 %
- Routed prefixes
- 43
How much of the internet this network is responsible for, and how much of that address space currently appears on a threat feed. Coverage: clean.
Peering ecosystem
A sample of 19 of this network’s 19 BGP neighbours.
- TWELVE99 - Arelion Sweden AB · AS1299
- NTT-DATA-2914 - NTT America, Inc. · AS2914
- ASN-TELSTRA-GLOBAL - Telstra Global · AS4637
- LibertyGlobal - Liberty Global Europe Holding B.V. · AS6830
- HURRICANE - Hurricane Electric LLC · AS6939
- ZYLON-AS - Bas Smit trading as Zylon · AS8312
- CORE-BACKBONE - Core-Backbone GmbH · AS33891
- QTS-EEM - Quality Technology Services, LLC · AS35974
- XINDI-AS - XINDI Networks SRL · AS39002
- TKSWF-AS - Stadtwerke Feldkirch · AS48362
- Serverius-as - Serverius Holding B.V. · AS50673
- AS-ORANJEKOEK - Arend Brouwer · AS51517
- NBA-AS - 'Nothing But Air' Services B.V. · AS51923
- GIGAHOST - Gigahost AS · AS56655
- PLUSINE-AS - Plusine Systems B.V. · AS198508
- RVDMEIJDEN-AS - R. van der Meijden · AS201723
- MOBIELWERKT - MobielWerkt B.V. · AS204751
- BittenBytes - Bram Wittendorp trading as BittenBytes · AS213052
- OCIENT-INC - OCIENT INC · AS398300
Reputation
9.5reputation score (REPUTABLE)
AS31477 (DUOCAST-AS - Duocast B.V., NL) has a reputation score of 71.4 (REPUTABLE).
- Threat density
- 77.6/100
- Graph metrics
- 90.0/100
- Historical behaviour
- 75.0/100
- 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
- Duocast B.V.
- RIR
- RIPE
- Registered
- Wed, 26 May 2004 11:33:27 GMT
- Abuse contact
- abuse@duocast.nl
This is the abuse contact WhisperGraph holds for the network.
Threat-feed evidence
Related pages
Pivot from AS31477 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, ixpCountRun 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, observationsRun yourself →Or query Whisper from your own LLM workflow via the Whisper MCP server.