Autonomous System
AS21743 — ANL-36 - Atlas Networks Corporation(US)
Last fetched
AS21743 is an Autonomous System operated by ANL-36 - Atlas Networks Corporation and registered in US. As of Sun, 06 Sep 2026 18:17:17 GMT, it announces 25 routed IP prefixes and peers with 4 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS21743 announces 25 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 45.42.141.0/24
- 45.42.142.0/24
- 64.57.177.0/24
- 66.93.14.0/24
- 66.170.184.0/21
- 66.171.176.0/20
- 66.248.243.0/24
- 69.5.52.0/22
- 91.234.156.0/22
- 104.36.44.0/22
- 104.192.204.0/22
- 104.247.120.0/22
- 104.254.210.0/23
- 104.255.0.0/22
- 149.18.8.0/22
- 149.57.248.0/21
- 154.6.48.0/22
- 161.129.176.0/24
- 165.140.26.0/24
- 199.231.240.0/21
- 209.200.234.0/23
- 216.75.151.0/24
- 216.247.100.0/22
- 2607:9100::/32
- 2620:b9:e000::/48
Peering ecosystem
4 distinct peers via BGP. The first 4 are listed below.
Blast radius
Count of dependent hostnames if AS21743 disappeared from the routing table.
1,414 hostnames depend on this network.Exact count across all 22 announced prefixes. Snapshot Fri, 10 Jul 2026 04:01:11 GMT.
MOAS / hijack watch
Prefixes routed by AS21743 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 AS21743 is unique to AS21743 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS21743.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS21743"})-[: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.