Autonomous System
AS1921
Last fetched
AS1921 is operated by RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, registered in AT, and announces 22 prefixes to 19 BGP neighbours. AS1921 has a reputation score of 9.3 (REPUTABLE); 0 of its 2,816 announced IPv4 addresses appear on threat feeds.
Nutrition Label
Routing footprint
- Announced prefixes
- 22
- BGP neighbours
- 19
- RPKI ROAs
- 42
- MOAS conflicts
- 16
- CAIDA AS-rank
- 5,686
- Customer-cone ASNs
- 4
- Facilities
- 68
- Internet exchanges
- 10
- 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
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 19 of this network’s 19 BGP neighbours.
- LINX-AS - London Internet Exchange Ltd. · AS5459
- 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
- AS-VULTR - The Constant Company, LLC · AS20473
- Infomaniak-AS - Infomaniak Network SA · AS29222
- 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
- GLESYS - Glesys AB · AS42708
- DE-FIRSTCOLO - firstcolo GmbH · AS44066
- TKSWF-AS - Stadtwerke Feldkirch · AS48362
- SCHALLERT-AS - Dominic Schallert trading as schallert.com e.U. · AS49432
- BLIX - Blix Solutions AS · AS50304
- HOSTOPIA-AU - Hostopia Australia Web Pty Ltd · AS55803
- GIGAHOST - Gigahost AS · AS56655
- GCORE - G-Core Labs S.A. · AS199524
MOAS / hijack watch
16 announced prefixes conflict with AS1921 — another network announces the same address space. A sample:
Reputation
9.3reputation score (REPUTABLE)
AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT) has a reputation score of 72.0 (REPUTABLE).
- Threat density
- 90.0/100
- 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
- NICAT-MNT
- RIR
- RIPE
- Registered
- Wed, 21 Aug 2002 16:07:49 GMT
Threat-feed evidence
Related pages
Pivot from AS1921 into the prefixes, peers and country it routes for.
Cypher and MCP
Reproduce this network's routing footprint against graph.whisper.security:
MATCH (a:ASN {name: "AS1921"})
OPTIONAL MATCH (a)-[:HAS_NAME]->(n:ASN_NAME)
CALL { WITH a MATCH (a)-[:ROUTES]->(p:ANNOUNCED_PREFIX) RETURN count(p) AS prefixes }
CALL { WITH a MATCH (a)-[:BGP_NEIGHBOR]-(x:ASN) RETURN count(x) AS peers }
RETURN n.name AS operator, prefixes, peers;
CALL whisper.asnThreatDensity("AS1921")Or query Whisper from your own LLM workflow via the Whisper MCP server.