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Autonomous System

AS25515

Rostelecom

Announced IPs
46,592
CIDR prefixes
18
ASN
AS25515

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.

70/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Isp allocation +5
  • Trust score 70 / 100

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

About Rostelecom

Rostelecom is Russia's largest provider of digital services for a wide variety of consumers, households, private businesses, government and municipal authorities, and other telecom providers. Rostelecom interconnects all local public operators' networks into a single national network for long-distance service.

Founded
1993
Headquarters
Moscow
Industry
telecommunications industry
Employees
1,286

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
77.51.192.0/18 16.4K
73.8%
Rostelecom RU Moscow Moscow
213.140.224.0/19 8.2K
96.4%
Rostelecom RU — —
77.51.176.0/20 4.1K
99.8%
Rostelecom RU — —
89.109.240.0/20 4.1K
75.0%
Rostelecom RU Moscow Oblast Pushkino
89.109.232.0/21 2.0K
100.0%
Rostelecom RU Moscow Moscow
90.154.120.0/21 2.0K
100.0%
Rostelecom RU — —
95.73.56.0/21 2.0K
37.5%
Rostelecom RU — —
217.107.96.0/21 2.0K
99.9%
Rostelecom RU — —
85.94.0.0/22 1.0K
1.8%
Rostelecom RU — —
85.94.20.0/22 1.0K
50.0%
Rostelecom RU — —
85.94.24.0/22 1.0K
50.0%
Rostelecom RU — —
85.94.18.0/23 512
50.0%
Rostelecom RU — —
185.141.236.0/23 512
99.0%
Rostelecom RU — —
217.107.104.0/23 512
99.8%
Rostelecom RU — —
91.188.223.0/24 256
100.0%
Rostelecom RU — —
146.19.98.0/24 256
0.0%
Rostelecom RU — —
185.202.109.0/24 256
98.0%
Rostelecom RU — —
193.3.188.0/24 256
100.0%
Rostelecom RU — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS25515 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
77.51.192.0/21 23,306 2026-11-03 18:44:54
77.51.184.0/21 23,289 2026-11-03 18:44:54
77.51.176.0/21 23,263 2026-11-03 18:44:54
77.51.200.0/21 20,795 2026-11-03 18:44:54
77.51.216.0/21 20,745 2026-11-03 18:44:54
77.51.224.0/21 20,736 2026-11-03 18:44:54
77.51.208.0/21 20,730 2026-11-03 18:44:54
77.51.0.0/16 20,711 2026-11-03 18:44:54
193.3.188.0/24 19,293 2026-11-03 18:44:54
217.107.104.0/23 19,145 2026-11-03 18:44:54
217.107.96.0/21 19,127 2026-11-03 18:44:54
90.154.120.0/21 19,049 2026-11-03 18:44:54
85.94.0.0/19 18,952 2026-11-03 18:44:54
89.109.192.0/18 18,916 2026-11-03 18:44:54
91.188.223.0/24 18,887 2026-11-03 18:44:54
146.19.98.0/24 18,859 2026-11-03 18:44:54
185.202.109.0/24 18,812 2026-11-03 18:44:54
213.140.224.0/19 16,753 2026-11-03 18:44:54
185.141.236.0/23 16,434 2026-11-03 18:44:54
95.72.0.0/15 16,306 2026-11-03 18:44:54

Frequently Asked Questions

What is AS25515?

AS25515 is an Autonomous System Number assigned to Rostelecom. 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 AS25515 announce?

AS25515 announces 46.6K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in Russia.

Who operates AS25515?

AS25515 is operated by Rostelecom. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS25515 registered in?

AS25515 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-03 19:24:06 UTC
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