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Autonomous System

AS201123

OOO SET

Announced IPs
2,304
CIDR prefixes
5
ASN
AS201123

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

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS201123 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
81.177.192.0/24 4,702 2026-07-24 14:52:30
213.59.159.0/24 4,620 2026-07-24 14:52:30
213.59.152.0/23 4,609 2026-07-24 14:52:30
213.59.128.0/22 4,606 2026-07-24 14:52:30
213.59.151.0/24 4,598 2026-07-24 14:52:30

Frequently Asked Questions

What is AS201123?

AS201123 is an Autonomous System Number assigned to OOO SET. 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 AS201123 announce?

AS201123 announces 2.3K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in Russia.

Who operates AS201123?

AS201123 is operated by OOO SET. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS201123 registered in?

AS201123 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 14:55:31 UTC
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