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 →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 45.152.39.0/24 | 256 |
14.5%
|
Diederik Focko de Zee | NL | — | — |
| 89.37.98.0/24 | 256 |
39.8%
|
Diederik Focko de Zee | AT | — | — |
| 103.141.12.0/24 | 256 |
2.7%
|
Diederik Focko de Zee | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS50917 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 |
|---|---|---|
| 103.141.12.0/24 | 68,040 | 2026-07-28 23:34:33 |
| 89.37.98.0/24 | 13,066 | 2026-07-28 23:25:18 |
| 45.152.39.0/24 | 13,017 | 2026-07-28 23:25:18 |
Frequently Asked Questions
What is AS50917?
AS50917 is an Autonomous System Number assigned to Diederik Focko de Zee. 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 AS50917 announce?
AS50917 announces 768 IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Italy.
Who operates AS50917?
AS50917 is operated by Diederik Focko de Zee. The organization is based in Italy. You can view all IP ranges and related ASNs on the organization page.
What country is AS50917 registered in?
AS50917 is registered in Italy. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
