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Autonomous System

AS15465

Siemens AG

Announced IPs
4,864
CIDR prefixes
8
ASN
AS15465

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
139.23.204.0/22 1.0K
1.2%
Siemens AG DE
194.138.16.0/22 1.0K
12.2%
Siemens AG DE
194.138.36.0/22 1.0K
15.1%
Siemens AG DE Bavaria Munich
143.99.146.0/23 512
0.0%
Siemens AG DE
143.99.196.0/23 512
0.0%
Siemens AG DE
185.181.24.0/24 256
0.0%
Siemens AG DE
194.138.35.0/24 256
12.1%
Siemens AG DE
194.138.40.0/24 256
2.0%
Siemens AG DE

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS15465 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
139.23.204.0/22 30,241 2026-07-31 18:45:36
194.138.16.0/22 27,951 2026-07-31 18:55:19
194.138.38.0/24 26,582 2026-07-31 18:45:36
194.138.40.0/24 26,233 2026-07-31 18:45:36
194.138.36.0/23 26,228 2026-07-31 18:45:36
194.138.39.0/24 26,161 2026-07-31 18:45:36
194.138.35.0/24 26,151 2026-07-31 18:45:36
185.181.24.0/24 23,956 2026-07-31 18:45:36
143.99.146.0/24 23,730 2026-07-31 18:45:26
143.99.147.0/24 23,694 2026-07-31 18:45:26
143.99.197.0/24 19,935 2026-07-31 18:49:49
143.99.196.0/24 19,931 2026-07-31 18:49:49

Frequently Asked Questions

What is AS15465?

AS15465 is an Autonomous System Number assigned to Siemens AG. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS15465 announce?

AS15465 announces 4.9K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in Germany.

Who operates AS15465?

AS15465 is operated by Siemens AG. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.

What country is AS15465 registered in?

AS15465 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-31 19:10:31 UTC
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