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 →Present at 1 internet exchange: AMS-IX
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS25151 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 |
|---|---|---|
| 185.78.196.0/22 | 15,737 | 2026-07-30 15:10:32 |
| 85.158.205.0/24 | 15,409 | 2026-07-28 17:56:28 |
| 2.57.56.0/24 | 12,490 | 2026-07-30 15:50:33 |
| 45.134.223.0/24 | 12,299 | 2026-07-30 14:47:51 |
| 130.193.5.0/24 | 11,884 | 2026-07-30 14:47:52 |
| 81.24.10.0/23 | 11,599 | 2026-07-27 12:59:42 |
| 81.24.6.0/23 | 11,449 | 2026-07-27 13:01:43 |
| 193.33.220.0/24 | 11,296 | 2026-07-30 15:59:11 |
| 109.235.72.0/21 | 10,945 | 2026-07-30 15:10:32 |
| 46.253.137.0/24 | 10,912 | 2026-07-13 18:26:16 |
| 81.24.4.0/24 | 10,897 | 2026-07-24 00:50:01 |
| 85.158.200.0/21 | 10,880 | 2026-07-30 15:10:32 |
| 37.46.136.0/21 | 10,835 | 2026-07-30 15:10:32 |
| 80.85.160.0/23 | 10,824 | 2026-07-30 15:10:32 |
| 93.94.224.0/21 | 10,729 | 2026-07-30 15:10:32 |
| 185.54.112.0/22 | 10,692 | 2026-07-30 15:10:32 |
| 37.72.138.0/24 | 10,530 | 2026-07-30 15:10:31 |
| 62.129.149.0/24 | 10,530 | 2026-07-30 15:10:31 |
| 185.123.55.0/24 | 10,528 | 2026-07-30 15:10:31 |
| 62.129.139.0/24 | 10,438 | 2026-07-30 15:10:31 |
| 81.24.0.0/22 | 8,714 | 2026-07-27 14:27:55 |
| 81.24.8.0/22 | 8,544 | 2026-07-27 14:27:55 |
| 81.24.4.0/22 | 8,505 | 2026-07-27 14:27:55 |
| 81.24.9.0/24 | 6,596 | 2026-07-27 12:59:42 |
| 80.85.161.0/24 | 6,584 | 2026-07-27 14:27:55 |
| 93.94.231.0/24 | 5,329 | 2026-07-23 00:40:21 |
| 81.24.0.0/20 | 4,758 | 2026-07-30 15:10:32 |
| 62.129.133.0/24 | 3,212 | 2026-07-18 19:38:29 |
| 109.235.75.0/24 | 2,891 | 2026-07-21 22:22:10 |
| 109.235.77.0/24 | 2,716 | 2026-07-09 11:19:47 |
| 93.94.229.0/24 | 2,701 | 2026-05-27 22:56:45 |
| 81.24.6.0/24 | 2,696 | 2026-07-07 23:34:15 |
| 185.78.196.0/24 | 2,633 | 2026-07-26 14:59:05 |
| 185.78.197.0/24 | 2,509 | 2026-07-10 04:01:13 |
| 80.85.160.0/24 | 2,463 | 2026-05-24 19:17:43 |
| 37.46.140.0/24 | 2,459 | 2026-06-25 22:01:09 |
| 85.158.206.0/24 | 2,457 | 2026-06-05 03:21:21 |
| 93.94.227.0/24 | 1,996 | 2026-07-24 00:50:01 |
Frequently Asked Questions
What is AS25151?
AS25151 is an Autonomous System Number assigned to Cyso Group B.V.. 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 AS25151 announce?
AS25151 announces 16.1K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in The Netherlands.
Who operates AS25151?
AS25151 is operated by Cyso Group B.V.. The organization is based in The Netherlands. You can view all IP ranges and related ASNs on the organization page.
What country is AS25151 registered in?
AS25151 is registered in The Netherlands. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
