Skip to main content
Autonomous System

AS56977

STILAR Ltd

Announced IPs
1,024
CIDR prefixes
2
ASN
AS56977

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
91.229.190.0/23 512
92.6%
STILAR Ltd RU
91.239.44.0/23 512
92.2%
STILAR Ltd RU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS56977 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
91.239.45.0/24 58,959 2026-08-05 10:27:02
91.229.190.0/24 58,920 2026-08-05 10:27:02
91.229.191.0/24 58,915 2026-08-05 10:27:02
91.239.44.0/24 58,883 2026-08-05 10:27:02

Frequently Asked Questions

What is AS56977?

AS56977 is an Autonomous System Number assigned to STILAR Ltd. 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 AS56977 announce?

AS56977 announces 1.0K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Russia.

Who operates AS56977?

AS56977 is operated by STILAR Ltd. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS56977 registered in?

AS56977 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-08-05 10:55:32 UTC
Share