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 4 internet exchanges: MegaIX Munich, MegaIX Dusseldorf, DE-CIX Munich: DE-CIX Munich Peering LAN, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 213.148.96.0/19 | 8.2K |
3.1%
|
Net-D-Sign GmbH | DE | Bavaria | Garching |
| 185.152.232.0/22 | 1.0K |
0.6%
|
Net-D-Sign GmbH | DE | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS57537 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 |
|---|---|---|
| 213.148.96.0/19 | 11,071 | 2026-07-26 07:04:45 |
| 185.152.232.0/22 | 10,922 | 2026-07-26 07:04:45 |
| 213.148.99.0/24 | 3,197 | 2026-07-26 08:26:12 |
| 213.148.98.0/24 | 3,195 | 2026-07-26 08:26:12 |
| 185.152.232.0/24 | 3,161 | 2026-07-26 08:26:12 |
| 185.152.233.0/24 | 3,161 | 2026-07-26 08:26:12 |
| 185.152.234.0/24 | 3,151 | 2026-07-26 08:26:12 |
| 185.152.235.0/24 | 3,150 | 2026-07-26 08:26:12 |
Frequently Asked Questions
What is AS57537?
AS57537 is an Autonomous System Number assigned to Net-D-Sign 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 AS57537 announce?
AS57537 announces 9.2K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Germany.
Who operates AS57537?
AS57537 is operated by Net-D-Sign GmbH. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.
What country is AS57537 registered in?
AS57537 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
