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Autonomous System

AS15759

Rostelecom

Announced IPs
19,968
CIDR prefixes
11
ASN
AS15759

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.

58/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Multiple-origin (MOAS) routing anomaly −12
  • Isp allocation +5
  • Trust score 58 / 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

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS15759 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
213.210.64.0/19 AS12389, AS15759 2026-07-22 15:38:21
213.210.112.0/20 AS12389, AS15759 2026-07-22 15:38:21

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
213.210.80.0/20 4.1K
0.0%
Rostelecom RU
213.210.112.0/20 4.1K
0.5%
Rostelecom RU
217.18.128.0/20 4.1K
14.9%
Rostelecom RU
213.210.64.0/21 2.0K
5.4%
Rostelecom RU
217.18.152.0/21 2.0K
10.6%
Rostelecom RU
213.210.76.0/22 1.0K
0.0%
Rostelecom RU
217.18.144.0/22 1.0K
1.7%
Rostelecom RU
213.210.74.0/23 512
0.0%
Rostelecom RU
217.18.148.0/23 512
2.3%
Rostelecom RU
213.210.72.0/24 256
2.3%
Rostelecom RU
217.18.151.0/24 256
3.5%
Rostelecom RU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS15759 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
217.18.152.0/24 7,084 2026-07-22 14:54:22
217.18.128.0/20 6,161 2026-07-22 15:17:19
217.18.144.0/20 5,095 2026-07-22 15:17:19
213.210.64.0/19 4,879 2026-07-22 06:23:29
213.210.112.0/20 4,757 2026-07-22 06:23:29

Frequently Asked Questions

What is AS15759?

AS15759 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 AS15759 announce?

AS15759 announces 20.0K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in Russia.

Who operates AS15759?

AS15759 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 AS15759 registered in?

AS15759 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-22 15:40:31 UTC
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