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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 v1.1.0 — 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
Employees
1,286

Web3 footprint

AS25515 hosts 1 observed decentralized-network node across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
77.51.192.0/18 16.4K
71.0%
Rostelecom RU Moscow Oblast Korolyov
213.140.224.0/19 8.2K
96.6%
Rostelecom RU
77.51.176.0/20 4.1K
94.2%
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
99.8%
Rostelecom RU
95.73.56.0/21 2.0K
37.5%
Rostelecom RU
217.107.96.0/21 2.0K
99.7%
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
96.9%
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
100.0%
Rostelecom RU
193.3.188.0/24 256
84.4%
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
77.51.224.0/21 8,372 2026-07-18 11:03:22
77.51.192.0/21 8,365 2026-07-18 11:03:22
77.51.216.0/21 8,361 2026-07-18 11:03:22
77.51.0.0/16 8,361 2026-07-18 11:03:22
77.51.176.0/21 8,360 2026-07-18 11:03:22
77.51.200.0/21 8,358 2026-07-18 11:03:22
77.51.184.0/21 8,352 2026-07-18 11:03:22
77.51.208.0/21 8,352 2026-07-18 11:03:22
85.94.0.0/19 4,568 2026-07-18 11:03:22
89.109.192.0/18 4,556 2026-07-18 11:03:22
91.188.223.0/24 4,541 2026-07-18 11:03:22
90.154.120.0/21 4,536 2026-07-18 11:03:22
146.19.98.0/24 4,510 2026-07-18 11:03:22
185.141.236.0/23 4,497 2026-07-18 11:03:24
185.202.109.0/24 4,493 2026-07-18 11:03:24
95.72.0.0/15 4,461 2026-07-18 11:03:22
213.140.224.0/19 4,455 2026-07-18 11:11:17
193.3.188.0/24 4,453 2026-07-18 11:03:24
217.107.104.0/23 4,448 2026-07-18 11:03:24
217.107.96.0/21 4,441 2026-07-18 11:03:24

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: 2026-07-18 11:25:31 UTC
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