Autonomous System
AS21840 — CIRION TECHNOLOGIES ARGENTINA S.A.(US)
Last fetched
AS21840 is an Autonomous System operated by CIRION TECHNOLOGIES ARGENTINA S.A. and registered in US. As of Wed, 20 May 2026 23:34:08 GMT, it announces 47 routed IP prefixes and peers with 1 other Autonomous System in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS21840 announces 47 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 2.26.186.0/24
- 31.58.54.0/24
- 31.58.215.0/24
- 45.77.208.0/21
- 64.124.127.0/24
- 65.92.242.0/24
- 69.173.152.0/23
- 75.152.0.0/18
- 79.176.32.0/20
- 80.96.134.0/23
- 82.29.228.0/24
- 82.100.176.0/21
- 85.217.239.0/24
- 87.76.145.0/24
- 87.237.82.0/23
- 87.239.56.0/21
- 88.215.64.0/18
- 89.125.37.0/24
- 92.98.102.0/23
- 92.114.95.0/24
- 95.140.80.0/20
- 95.141.52.0/24
- 96.7.229.0/24
- 97.64.234.0/24
- 102.178.233.0/24
Peering ecosystem
1 distinct peers via BGP. The first 1 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS10122 | NETSTAR-AS-AP NETSTAR SG PTE. LTD. | SG |
Blast radius
Approximate count of dependent hostnames if AS21840 disappeared from the routing table.
~1,231 hostnames depend on this network.Sampled from 10 prefixes, snapshot Wed, 20 May 2026 23:34:08 GMT.
MOAS / hijack watch
Prefixes routed by AS21840 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.
No active MOAS conflicts. Every prefix announced by AS21840 is unique to AS21840 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS21840.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS21840"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS countryOr query Whisper from your own LLM workflow via the Whisper MCP server.