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.
- Baseline (neutral) 65
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
About Bayer
Bayer AG is a German multinational pharmaceutical and biotechnology company and is one of the largest pharmaceutical companies and biomedical companies in the world. Headquartered in Leverkusen, Bayer's areas of business include pharmaceuticals, consumer healthcare products, agricultural chemicals, seeds and biotechnology products.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 164.60.0.0/16 | 65.5K |
0.0%
|
Bayer AG | DE | — | — |
| 164.59.0.0/17 | 32.8K |
0.0%
|
Bayer AG | DE | — | — |
| 164.59.192.0/18 | 16.4K |
0.0%
|
Bayer AG | DE | North Rhine-Westphalia | Düsseldorf |
| 149.234.32.0/19 | 8.2K |
0.0%
|
Bayer AG | DE | — | — |
| 149.234.64.0/19 | 8.2K |
0.0%
|
Bayer AG | DE | — | — |
| 164.59.160.0/19 | 8.2K |
0.0%
|
Bayer AG | DE | — | — |
| 193.202.128.0/19 | 8.2K |
0.0%
|
Bayer AG | DE | — | — |
| 212.64.224.0/19 | 8.2K |
15.4%
|
Bayer AG | DE | Thuringia | Weimar |
| 149.234.16.0/20 | 4.1K |
0.0%
|
Bayer AG | DE | — | — |
| 149.234.96.0/20 | 4.1K |
0.0%
|
Bayer AG | DE | — | — |
| 164.59.128.0/20 | 4.1K |
0.3%
|
Bayer AG | DE | — | — |
| 149.234.8.0/21 | 2.0K |
0.0%
|
Bayer AG | DE | — | — |
| 149.234.112.0/21 | 2.0K |
0.0%
|
Bayer AG | DE | — | — |
| 164.59.152.0/21 | 2.0K |
0.0%
|
Bayer AG | DE | — | — |
| 149.234.120.0/22 | 1.0K |
0.0%
|
Bayer AG | DE | — | — |
| 164.59.148.0/22 | 1.0K |
0.0%
|
Bayer AG | DE | — | — |
| 164.59.146.0/23 | 512 |
0.0%
|
Bayer AG | DE | — | — |
| 149.234.126.0/24 | 256 |
0.0%
|
Bayer AG | DE | — | — |
| 195.47.249.0/24 | 256 |
4.3%
|
Bayer AG | DE | North Rhine-Westphalia | Monheim am Rhein |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS13043 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 164.59.139.0/24 | 20,124 | 2026-11-14 07:20:11 |
| 164.59.140.0/24 | 19,964 | 2026-11-14 07:20:11 |
| 164.59.141.0/24 | 19,838 | 2026-11-14 07:20:11 |
| 164.59.142.0/24 | 19,808 | 2026-11-14 07:20:11 |
| 164.59.136.0/24 | 19,704 | 2026-11-14 07:20:11 |
| 212.64.225.0/24 | 19,676 | 2026-11-14 06:48:33 |
| 164.59.130.0/24 | 19,657 | 2026-11-14 07:20:11 |
| 164.59.137.0/24 | 19,614 | 2026-11-14 07:20:11 |
| 164.59.138.0/24 | 19,605 | 2026-11-14 07:20:11 |
| 164.59.128.0/24 | 19,538 | 2026-11-14 07:20:11 |
| 164.59.129.0/24 | 19,478 | 2026-11-14 07:20:11 |
| 149.234.32.0/19 | 19,260 | 2026-11-14 07:24:09 |
| 193.202.128.0/19 | 19,246 | 2026-11-14 07:24:09 |
| 164.59.143.0/24 | 19,212 | 2026-11-14 07:20:11 |
| 164.59.0.0/16 | 18,965 | 2026-11-14 07:24:09 |
| 164.60.0.0/16 | 18,906 | 2026-11-14 07:24:09 |
| 149.234.64.0/18 | 18,853 | 2026-11-14 07:24:09 |
| 149.234.8.0/21 | 18,834 | 2026-11-14 07:24:09 |
| 212.64.224.0/19 | 18,703 | 2026-11-14 07:24:09 |
| 149.234.64.0/24 | 18,678 | 2026-11-14 07:20:11 |
| 164.59.208.0/24 | 18,639 | 2026-11-14 07:20:11 |
| 212.64.229.0/24 | 18,605 | 2026-11-14 06:13:56 |
| 164.59.237.0/24 | 18,568 | 2026-11-14 07:20:11 |
| 212.64.226.0/24 | 18,535 | 2026-11-14 06:13:56 |
| 149.234.16.0/20 | 18,532 | 2026-11-14 07:24:09 |
| 195.47.249.0/24 | 18,506 | 2026-11-14 07:20:11 |
| 164.59.193.0/24 | 18,479 | 2026-11-14 07:20:11 |
| 164.59.189.0/24 | 18,429 | 2026-11-14 07:20:11 |
| 164.59.190.0/24 | 18,428 | 2026-11-14 07:20:11 |
| 164.59.192.0/24 | 18,349 | 2026-11-14 07:20:11 |
| 164.59.255.0/24 | 18,294 | 2026-11-14 07:20:11 |
Frequently Asked Questions
What is AS13043?
AS13043 is an Autonomous System Number assigned to Bayer 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 AS13043 announce?
AS13043 announces 177.2K IPv4 addresses distributed across 19 routed CIDR prefixes. The network is registered in Germany.
Who operates AS13043?
AS13043 is operated by Bayer AG. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.
What country is AS13043 registered in?
AS13043 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
