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Autonomous System

AS30943

ZAO Web Hosting

Announced IPs
1,792
CIDR prefixes
3
ASN
AS30943

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.

47/100
Caution
How this score is built

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

⚠ 4 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS30943 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)
185.67.166.0/24 AS30943, AS40966 2026-07-22 20:53:23
185.67.165.0/24 AS30943, AS40966 2026-07-22 20:53:23
217.112.44.0/24 AS30943, AS40966 2026-07-22 20:53:23
185.67.167.0/24 AS30943, AS40966 2026-07-22 20:53:23

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
217.112.32.0/22 1.0K
29.9%
ZAO Web Hosting RU
217.112.38.0/23 512
0.0%
ZAO Web Hosting RU
217.112.40.0/23 512
12.9%
ZAO Web Hosting RU
217.112.47.0/24 256
9.4%
ZAO Web Hosting RU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS30943 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
217.112.34.0/23 19,113 2026-07-22 20:54:21
217.112.40.0/23 19,056 2026-07-22 20:54:21
217.112.35.0/24 19,025 2026-07-22 20:54:21
217.112.32.0/23 18,966 2026-07-22 20:54:21
217.112.47.0/24 18,021 2026-07-22 20:54:21
185.67.167.0/24 1,695 2026-07-22 13:14:50
217.112.44.0/24 1,114 2026-07-22 20:50:39
185.67.164.0/24 370 2026-07-11 12:28:47
185.67.165.0/24 367 2026-07-11 12:28:47
185.67.166.0/24 327 2026-07-11 12:28:47

Frequently Asked Questions

What is AS30943?

AS30943 is an Autonomous System Number assigned to ZAO Web Hosting. 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 AS30943 announce?

AS30943 announces 1.8K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Russia.

Who operates AS30943?

AS30943 is operated by ZAO Web Hosting. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS30943 registered in?

AS30943 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-22 20:55:32 UTC
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