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Autonomous System

AS51966

Fondation RESTENA

Announced IPs
256
CIDR prefixes
1
ASN
AS51966

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
194.0.23.0/24 256
0.4%
Fondation RESTENA LU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS51966 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
194.0.23.0/24 6,713 2026-07-24 05:09:33

Frequently Asked Questions

What is AS51966?

AS51966 is an Autonomous System Number assigned to Fondation RESTENA. 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 AS51966 announce?

AS51966 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Luxembourg.

Who operates AS51966?

AS51966 is operated by Fondation RESTENA. The organization is based in Luxembourg. You can view all IP ranges and related ASNs on the organization page.

What country is AS51966 registered in?

AS51966 is registered in Luxembourg. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 05:40:31 UTC
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