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Autonomous System

AS43550

JSC Avantel

Announced IPs
5,120
CIDR prefixes
2
ASN
AS43550

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.

69/100
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
178.57.192.0/20 4.1K
98.8%
JSC Avantel RU
185.37.164.0/22 1.0K
0.0%
JSC Avantel RU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS43550 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
178.57.199.0/24 46,819 2026-07-24 14:03:39
185.37.165.0/24 45,910 2026-07-24 14:03:39
185.37.164.0/24 45,904 2026-07-24 14:03:39
178.57.198.0/24 38,596 2026-07-24 14:03:39
185.37.166.0/24 36,096 2026-07-24 14:03:39
185.37.167.0/24 36,095 2026-07-24 14:03:39
178.57.205.0/24 9,629 2026-07-24 15:11:48
178.57.207.0/24 6,629 2026-07-24 13:53:43
178.57.203.0/24 6,581 2026-07-24 13:53:43
178.57.192.0/24 6,562 2026-07-24 13:53:43
178.57.202.0/24 6,554 2026-07-24 13:53:43
178.57.195.0/24 6,550 2026-07-24 13:53:43
178.57.194.0/24 6,549 2026-07-24 13:53:43
178.57.201.0/24 6,547 2026-07-24 13:53:43
178.57.200.0/24 6,544 2026-07-24 13:53:43
178.57.206.0/24 6,543 2026-07-24 13:53:43
178.57.197.0/24 6,540 2026-07-24 13:53:43
178.57.196.0/24 6,534 2026-07-24 13:53:43
178.57.193.0/24 6,525 2026-07-24 13:53:43
178.57.204.0/24 6,420 2026-07-24 15:05:14

Frequently Asked Questions

What is AS43550?

AS43550 is an Autonomous System Number assigned to JSC Avantel. 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 AS43550 announce?

AS43550 announces 5.1K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Russia.

Who operates AS43550?

AS43550 is operated by JSC Avantel. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS43550 registered in?

AS43550 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 15:10:32 UTC
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