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Autonomous System

AS51771

Public Joint-Stock Company MTS Bank

Announced IPs
512
CIDR prefixes
2
ASN
AS51771

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
194.190.172.0/24 256
5.5%
Public Joint-Stock Company MTS Bank RU
195.151.39.0/24 256
0.0%
Public Joint-Stock Company MTS Bank RU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS51771 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
194.190.172.0/24 15,665 2026-07-24 09:39:33
195.151.39.0/24 7,835 2026-07-24 11:39:57

Frequently Asked Questions

What is AS51771?

AS51771 is an Autonomous System Number assigned to Public Joint-Stock Company MTS Bank. 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 AS51771 announce?

AS51771 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Russia.

Who operates AS51771?

AS51771 is operated by Public Joint-Stock Company MTS Bank. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS51771 registered in?

AS51771 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 11:40:32 UTC
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