Autonomous System
AS50300
Last fetched
AS50300 is operated by CUSTDC - CustodianDC Limited, registered in GB, and announces 46 prefixes to 222 BGP neighbours. AS50300 has a reputation score of 11.0 (NEUTRAL); 4 of its 10,752 announced IPv4 addresses appear on threat feeds.
Nutrition Label
Routing footprint
- Announced prefixes
- 46
- BGP neighbours
- 222
- RPKI ROAs
- 9
- MOAS conflicts
- 0
- CAIDA AS-rank
- 3,870
- Customer-cone ASNs
- 6
- Facilities
- 41
- Internet exchanges
- 3
- Customer degree
- 5
- Peer degree
- 1,200
- Provider degree
- 7
- 5.102.168.0/24
- 5.102.169.0/24
- 5.102.170.0/24
- 5.102.171.0/24
- 5.102.172.0/24
- 5.102.173.0/24
- 5.102.174.0/24
- 5.102.175.0/24
- 92.118.16.0/24
- 109.74.240.0/24
- 109.74.241.0/24
- 109.74.242.0/24
- 109.74.243.0/24
- 109.74.244.0/24
- 109.74.246.0/24
- 109.74.247.0/24
- 109.74.248.0/24
- 109.74.249.0/24
- 109.74.250.0/24
- 109.74.251.0/24
- 109.74.252.0/24
- 109.74.255.0/24
- 176.12.104.0/24
- 176.12.105.0/24
- 176.12.106.0/24
Infrastructure presence
Facilities (41 total)
- NIKHEF Amsterdam
- Global Switch London North
- Digital Realty London LON1-3
- Equinix LD8 - London, Docklands
- Telehouse - London (Docklands North)
- Digital Realty London LHR19
- Digital Realty London LHR20
- Telehouse - London (Docklands East)
- Digital Realty London LHR21 (closed)
- Digital Realty AMS3/5/7/8/10 - Amsterdam
- Global Switch Amsterdam
- Equinix AM7 - Amsterdam, Kuiperberweg
- Digital Realty AMS17 - Amsterdam
- Digital Realty AMS9 - Amsterdam
- Level(3) London (Braham Street)
- Equinix AM1/AM2 - Amsterdam, Luttenbergweg
- Iron Mountain Data Center - Amsterdam (AMS-1)
- Level(3) London (Goswell Road)
- Equinix LD4 - London, Slough
- Equinix LD9 - London, Powergate
- Smartdc Rotterdam
- Telehouse - London (Docklands West)
- Equinix LD5 - London, Slough
- 4D Surrey
- NorthC Amsterdam 1
Route origin authorizations
A sample of 9 of this network’s 9 ROAs.
- 109.74.240.0/20 · max length /24
- 176.12.104.0/21 · max length /24
- 185.120.172.0/22 · max length /22
- 185.32.72.0/22 · max length /24
- 185.42.65.0/24 · max length /24
- 185.48.164.0/22 · max length /24
- 2a00:1c10::/32 · max length /64
- 5.102.168.0/21 · max length /24
- 92.118.16.0/24 · max length /24
Upstreams
The networks that most often share an observed BGP path with AS50300.
Blast radius
- Announced IPv4 addresses
- 10,752
- Threat-listed addresses
- 4
- Threat density
- 0.0372 %
- Routed prefixes
- 39
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 222 BGP neighbours.
- COGENT-174 - Cogent Communications, LLC · AS174
- ESNET - ESnet · AS293
- DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. · AS680
- APPLE-ENGINEERING - Apple Inc. · AS714
- PEER1-1031 - PEER 1031 LLC · AS1031
- WNET - WNET TELECOM USA Corp. · AS1820
- UNITAS - Unitas Global · AS1828
- Tertiary Education and Research Network of South Africa - Tertiary Education and Research Network of South Africa · AS2018
- ROSPRINT-AS - LLC Orange Business Services · AS2854
- BT-UK-AS - British Telecommunications Limited · AS2856
- NTT-DATA-2914 - NTT America, Inc. · AS2914
- VELOXSERV - VeloxServ Communications Ltd · AS3170
- XTOM - xTom GmbH · AS3214
- VOXILITY - Voxility LLP · AS3223
- GTT-BACKBONE - GTT Communications Inc. · AS3257
- Datagroup - PRIVATE JOINT STOCK COMPANY "DATAGROUP" · AS3326
- CITIC - CITIC Telecom CPC Netherlands B.V. · AS3327
- LEVEL3 - Level 3 Parent, LLC · AS3356
- HINET - Data Communication Business Group · AS3462
- Dimension Data - Dimension Data · AS3741
- BSO - IX Reach Ltd · AS4455
- STARHUB-INTERNET - StarHub Ltd · AS4657
- GLOBE-TELECOM-AS - Globe Telecoms · AS4775
- LINTASARTA-AS-AP - PT Aplikanusa Lintasarta · AS4800
- NTL - Virgin Media Limited · AS5089
Reputation
11.0reputation score (NEUTRAL)
AS50300 (CUSTDC - CustodianDC Limited, GB) has a reputation score of 68.0 (NEUTRAL).
- Threat density
- 78.6/100
- Graph metrics
- 90.0/100
- Historical behaviour
- 60.0/100
- 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
- CustodianDC Limited
- RIR
- RIPE
- Registered
- Wed, 16 Dec 2009 10:53:17 GMT
- Abuse contact
- abuse@CustodianDC.com
This is the abuse contact WhisperGraph holds for the network.
Threat-feed evidence
Related pages
Pivot from AS50300 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.