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 3 internet exchanges: SBIX Zurich: Switzerland, 4b42 Internet Exchange Point: Switzerland, FogIXP
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 45.10.39.0/24 | 256 |
0.0%
|
Simplysoft GmbH | CH | Valais | Brig |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS57521 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 |
|---|---|---|
| 45.10.39.0/24 | 15,757 | 2026-07-26 13:27:15 |
Frequently Asked Questions
What is AS57521?
AS57521 is an Autonomous System Number assigned to Simplysoft 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 AS57521 announce?
AS57521 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Switzerland.
Who operates AS57521?
AS57521 is operated by Simplysoft GmbH. The organization is based in Switzerland. You can view all IP ranges and related ASNs on the organization page.
What country is AS57521 registered in?
AS57521 is registered in Switzerland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
