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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →AS25291 — global IP footprint
Cities where AS25291 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 195.192.128.0/18 | 16.4K |
2.7%
|
SysEleven GmbH | DE | State of Berlin | Berlin |
| 37.44.0.0/21 | 2.0K |
43.7%
|
SysEleven GmbH | DE | State of Berlin | Berlin |
| 37.49.152.0/21 | 2.0K |
33.1%
|
SysEleven GmbH | DE | — | — |
| 37.123.104.0/21 | 2.0K |
21.5%
|
SysEleven GmbH | DE | — | — |
| 77.247.80.0/21 | 2.0K |
19.8%
|
SysEleven GmbH | DE | State of Berlin | Berlin |
| 109.68.224.0/21 | 2.0K |
15.9%
|
SysEleven GmbH | DE | State of Berlin | Berlin |
| 151.252.40.0/21 | 2.0K |
37.0%
|
SysEleven GmbH | DE | — | — |
| 176.74.56.0/21 | 2.0K |
37.5%
|
SysEleven GmbH | DE | Bavaria | Schwabach |
| 185.56.128.0/21 | 2.0K |
1.1%
|
SysEleven GmbH | DE | — | — |
| 147.93.208.0/22 | 1.0K |
0.0%
|
SysEleven GmbH | DE | — | — |
| 185.46.136.0/22 | 1.0K |
90.2%
|
SysEleven GmbH | DE | Bavaria | Augsburg |
| 185.54.232.0/22 | 1.0K |
10.4%
|
SysEleven GmbH | DE | — | — |
| 185.56.104.0/23 | 512 |
6.6%
|
SysEleven GmbH | DE | — | — |
| 185.245.102.0/23 | 512 |
99.8%
|
SysEleven GmbH | DE | — | — |
| 185.245.101.0/24 | 256 |
100.0%
|
SysEleven GmbH | DE | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS25291 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 |
|---|---|---|
| 37.49.152.0/21 | 356,993 | 2026-09-13 02:14:59 |
| 37.123.108.0/24 | 253,260 | 2026-09-13 02:14:59 |
| 37.49.153.0/24 | 252,994 | 2026-09-13 02:14:59 |
| 37.123.109.0/24 | 243,886 | 2026-09-13 02:14:59 |
| 37.123.104.0/21 | 120,521 | 2026-09-13 02:13:56 |
| 185.54.232.0/22 | 114,415 | 2026-09-13 02:13:56 |
| 77.247.80.0/21 | 113,562 | 2026-09-13 02:13:56 |
| 195.192.128.0/18 | 113,047 | 2026-09-13 02:13:56 |
| 109.68.224.0/21 | 107,054 | 2026-09-13 02:13:56 |
| 176.74.56.0/21 | 93,041 | 2026-09-13 02:10:26 |
| 37.44.0.0/21 | 84,412 | 2026-09-13 02:10:26 |
| 151.252.40.0/21 | 83,789 | 2026-09-13 02:10:26 |
| 37.123.106.0/24 | 81,982 | 2026-09-13 02:13:56 |
| 37.49.152.0/24 | 81,123 | 2026-09-13 02:13:56 |
| 109.68.230.0/24 | 80,297 | 2026-09-13 02:13:56 |
| 185.46.136.0/22 | 78,219 | 2026-09-13 02:10:26 |
| 185.245.102.0/24 | 69,832 | 2026-09-13 02:12:39 |
| 37.44.1.0/24 | 67,966 | 2026-09-13 02:10:26 |
| 77.247.82.0/24 | 67,512 | 2026-09-13 02:10:26 |
| 77.247.84.0/24 | 64,548 | 2026-09-13 02:10:26 |
| 185.245.103.0/24 | 58,438 | 2026-09-13 02:12:39 |
| 195.192.128.0/21 | 58,323 | 2026-09-13 02:12:39 |
| 176.74.62.0/24 | 45,530 | 2026-09-13 02:05:23 |
| 147.93.210.0/24 | 44,906 | 2026-09-13 02:05:23 |
| 185.245.101.0/24 | 41,900 | 2026-09-13 02:05:23 |
| 195.192.143.0/24 | 34,599 | 2026-09-13 02:05:23 |
| 185.56.128.0/21 | 26,561 | 2026-09-13 02:05:51 |
| 185.56.104.0/23 | 24,372 | 2026-09-13 02:05:23 |
| 37.49.159.0/24 | 24,230 | 2026-09-13 02:05:51 |
| 147.93.208.0/22 | 21,040 | 2026-09-13 02:05:51 |
| 109.68.228.0/24 | 10,427 | 2026-09-13 02:05:23 |
| 109.68.229.0/24 | 10,422 | 2026-09-13 02:05:23 |
| 109.68.224.0/24 | 10,410 | 2026-09-13 02:05:23 |
| 109.68.225.0/24 | 10,398 | 2026-09-13 02:05:23 |
| 151.252.45.0/24 | 8,812 | 2026-09-13 02:05:51 |
| 176.74.58.0/24 | 8,639 | 2026-09-13 02:05:51 |
| 176.74.59.0/24 | 8,533 | 2026-09-13 02:05:51 |
| 77.247.81.0/24 | 8,261 | 2026-09-13 02:05:51 |
| 31.99.192.0/24 | 2,827 | 2026-07-30 10:05:33 |
Frequently Asked Questions
What is AS25291?
AS25291 is an Autonomous System Number assigned to SysEleven GmbH. 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 AS25291 announce?
AS25291 announces 37.1K IPv4 addresses distributed across 15 routed CIDR prefixes. The network is registered in Germany.
Who operates AS25291?
AS25291 is operated by SysEleven GmbH. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.
What country is AS25291 registered in?
AS25291 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
