Autonomous System
AS1921
Last fetched
AS1921 is operated by RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, registered in AT, and announces 22 prefixes to 23 BGP neighbours. AS1921 has a reputation score of 11.2 (NEUTRAL); 0 of its 2,816 announced IPv4 addresses appear on threat feeds.
Nutrition Label
Routing footprint
- Announced prefixes
- 22
- BGP neighbours
- 23
- RPKI ROAs
- 42
- MOAS conflicts
- 9
- CAIDA AS-rank
- 5,921
- Customer-cone ASNs
- 4
- Facilities
- 68
- Internet exchanges
- 10
- Customer degree
- 3
- Peer degree
- 101
- Provider degree
- 18
- 91.237.67.0/24
- 185.80.188.0/24
- 185.80.191.0/24
- 185.102.12.0/24
- 192.174.68.0/24
- 193.46.128.0/24
- 193.46.133.0/24
- 193.46.134.0/24
- 193.227.117.0/24
- 194.0.25.0/24
- 194.0.182.0/24
- 2001:678:20::/48
- 2001:67c:1bc::/48
- 2a02:850:ffe0::/48
- 2a02:850:ffe5::/48
- 2a02:850:ffe6::/48
- 2a02:850:ffff::/48
- 2a04:2b00:14cc::/48
- 2a04:2b00:14ee::/48
- 2a05:7f00:188::/48
- 2a05:7f00:191::/48
- 2a0b:8e00::/48
Signals
- critical-infrastructureServes infrastructure the internet depends on operationally.
Infrastructure presence
Internet exchanges (10 total)
Facilities (68 total)
- Telehouse - London (Docklands North)
- Telehouse - London (Docklands East)
- Digital Realty London LHR20
- Digital Realty London LHR19
- Equinix LD8 - London, Docklands
- Digital Realty London LON1-3
- Digital Realty BRU1 - Brussels
- Digital Realty London LHR21 (closed)
- Digital Realty Zurich ZUR1
- Equinix ZH2 - Zurich
- Equinix LS1 - Lisbon
- IWB Datacenter Basel
- Level(3) Brussels
- colobern.ch Bern
- LCL Brussels (Diegem)
- BCE Colocation Luxembourg
- colozueri.ch Zurich
- Equinix LD4 - London, Slough
- FCCN Lisbon - SE03
- Equinix LD9 - London, Powergate
- Kelag Klagenfurt
- Stadtwerke Klagenfurt
- Equinix LD5 - London, Slough
- Equinix ZH4 - Zurich
- Telehouse - London (Docklands West)
Route origin authorizations
A sample of 10 of this network’s 42 ROAs.
- 176.97.158.0/24 · max length /24
- 185.102.12.0/24 · max length /24
- 185.80.188.0/24 · max length /24
- 185.80.189.0/24 · max length /24
- 185.80.190.0/24 · max length /24
- 185.80.191.0/24 · max length /24
- 192.174.68.0/24 · max length /24
- 193.227.117.0/24 · max length /24
- 193.46.128.0/24 · max length /24
- 193.46.129.0/24 · max length /24
Upstreams
The networks that most often share an observed BGP path with AS1921.
Blast radius
- Announced IPv4 addresses
- 2,816
- Threat-listed addresses
- 0
- Threat density
- 0.0000 %
- Routed prefixes
- 11
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 23 of this network’s 23 BGP neighbours.
- LINX-AS - London Internet Exchange Ltd. · AS5459
- VERIXI - VERIXI SA · AS6696
- HURRICANE - Hurricane Electric LLC · AS6939
- NASK-COMMERCIAL - NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZY · AS8308
- RETN-AS - RETN Limited · AS9002
- AS11644 - Nucleo de Inf. e Coord. do Ponto BR - NIC.BR · AS11644
- CONVERGE-AS - Converge ICT Solutions Inc. · AS17639
- AS-VULTR - The Constant Company, LLC · AS20473
- SCALEUP - ScaleUp Technologies GmbH & Co. KG · AS29014
- NICAT-CORE-AS - nic.at GmbH · AS30971
- MEER-AS - meerfarbig GmbH & Co. KG · AS34549
- AS_AT_TLD_SERVICES - ACONET · AS35052
- AS-ANEXIA - Anexia Cloud Solutions GmbH · AS42473
- DE-FIRSTCOLO - firstcolo GmbH · AS44066
- WAN4YOU - Mohamed El Bouddunti · AS45049
- team_blue - team.blue NV · AS48185
- TKSWF-AS - Stadtwerke Feldkirch · AS48362
- SCHALLERT-AS - Dominic Schallert trading as schallert.com e.U. · AS49432
- i3Dnet - i3D.net B.V · AS49544
- HOSTOPIA-AU - Hostopia Australia Web Pty Ltd · AS55803
- MELBICOM-EU-AS - Melbikomas UAB · AS56630
- GIGAHOST - Gigahost AS · AS56655
- GCORE - G-Core Labs S.A. · AS199524
MOAS / hijack watch
9 announced prefixes conflict with AS1921 — another network announces the same address space. A sample:
Reputation
11.2reputation score (NEUTRAL)
AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT) has a reputation score of 67.7 (NEUTRAL).
- Threat density
- 67.0/100
- 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
- NICAT-MNT
- RIR
- RIPE
- Registered
- Wed, 21 Aug 2002 16:07:49 GMT
- Abuse contact
- reports@cert.at
This is the abuse contact WhisperGraph holds for the network.
Threat-feed evidence
Related pages
Pivot from AS1921 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.