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Autonomous System

AS21030

Cluster LLC

Announced IPs
3,328
CIDR prefixes
8
ASN
AS21030

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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS21030 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
194.67.192.0/24 AS21030, AS216334 2026-07-23 17:23:36

Network profile

Source: PeeringDB →
Network type Content
Traffic level 1-5Tbps
Geographic scope Global
Traffic ratio Heavy Outbound
Peering policy Open
IRR record AS-CDNNOW

Present at 20 internet exchanges: MSK-IX Ekaterinburg, MSK-IX Moscow: MSK-IX peering network, SFO-IX: SFO-IX, ULN-IX, W-IX: vlan800, Crimea-IX, GNM-IX, Global-IX, CLOUD-IX MSK, CLOUD-IX SPB, …

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
85.209.68.0/22 1.0K
0.0%
Cluster LLC RU
185.40.154.0/23 512
0.0%
Cluster LLC RU
185.253.22.0/23 512
98.8%
Cluster LLC RU
62.204.57.0/24 256
0.0%
Scalaxy B.V. SC
130.49.154.0/24 256
0.0%
Cluster LLC RU
185.253.21.0/24 256
0.0%
Cluster LLC RU
216.162.46.0/24 256
0.0%
Cluster LLC GB
217.119.139.0/24 256
0.0%
Cluster LLC RU Moscow Zelenograd

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS21030 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
217.119.139.0/24 29,811 2026-07-23 17:21:08
185.253.22.0/24 26,151 2026-07-23 17:20:44
185.253.23.0/24 25,684 2026-07-23 17:20:44
185.253.21.0/24 25,512 2026-07-23 17:27:22
85.209.68.0/24 25,318 2026-07-23 17:19:54
185.40.155.0/24 23,851 2026-07-23 17:27:22
85.209.69.0/24 23,550 2026-07-23 17:27:22
185.40.154.0/24 19,926 2026-07-23 17:27:22
216.162.46.0/24 19,211 2026-07-23 17:21:07
85.209.70.0/24 18,916 2026-07-23 17:27:22
130.49.154.0/24 17,874 2026-07-23 17:20:21
85.209.71.0/24 14,079 2026-07-23 17:19:54
194.67.192.0/24 7,060 2026-07-23 09:55:00
62.204.57.0/24 887 2026-07-23 17:19:41

Frequently Asked Questions

What is AS21030?

AS21030 is an Autonomous System Number assigned to Cluster LLC. 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 AS21030 announce?

AS21030 announces 3.3K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in Russia.

Who operates AS21030?

AS21030 is operated by Cluster LLC. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS21030 registered in?

AS21030 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 17:25:31 UTC
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