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Autonomous System

AS33934

Rostelecom

Announced IPs
47,360
CIDR prefixes
50
ASN
AS33934

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 v1.2.0 — 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
178.35.176.0/20 4.1K
0.1%
Rostelecom RU
83.239.128.0/21 2.0K
52.6%
Rostelecom RU
85.172.120.0/21 2.0K
92.1%
Rostelecom RU
85.173.80.0/21 2.0K
95.8%
Rostelecom RU
85.174.80.0/21 2.0K
91.4%
Rostelecom RU
94.233.24.0/21 2.0K
98.9%
Rostelecom RU
94.233.32.0/21 2.0K
98.4%
Rostelecom RU
94.233.48.0/21 2.0K
96.2%
Rostelecom RU
83.239.136.0/22 1.0K
51.1%
Rostelecom RU
83.239.144.0/22 1.0K
1.4%
Rostelecom RU
83.239.152.0/22 1.0K
9.1%
Rostelecom RU
83.239.160.0/22 1.0K
69.6%
Rostelecom RU
83.239.172.0/22 1.0K
18.5%
Rostelecom RU
83.239.180.0/22 1.0K
21.8%
Rostelecom RU
83.239.184.0/22 1.0K
14.0%
Rostelecom RU
85.173.208.0/22 1.0K
99.2%
Rostelecom RU
85.174.60.0/22 1.0K
99.1%
Rostelecom RU
85.174.68.0/22 1.0K
74.7%
Rostelecom RU
85.174.100.0/22 1.0K
98.9%
Rostelecom RU
94.233.20.0/22 1.0K
74.7%
Rostelecom RU
94.233.64.0/22 1.0K
98.6%
Rostelecom RU
94.233.76.0/22 1.0K
88.5%
Rostelecom RU
94.233.84.0/22 1.0K
99.1%
Rostelecom RU
94.233.104.0/22 1.0K
99.1%
Rostelecom RU
94.233.124.0/22 1.0K
99.1%
Rostelecom RU
178.34.64.0/22 1.0K
0.6%
Rostelecom RU
178.35.136.0/22 1.0K
6.3%
Rostelecom RU
178.35.144.0/22 1.0K
0.6%
Rostelecom RU
178.35.168.0/22 1.0K
0.2%
Rostelecom RU
83.239.142.0/23 512
26.0%
Rostelecom RU
83.239.156.0/23 512
1.4%
Rostelecom RU
83.239.168.0/23 512
24.6%
Rostelecom RU
83.239.188.0/23 512
1.6%
Rostelecom RU
94.233.44.0/23 512
97.7%
Rostelecom RU
94.233.74.0/23 512
97.3%
Rostelecom RU
178.35.154.0/23 512
0.4%
Rostelecom RU
178.35.174.0/23 512
0.4%
Rostelecom RU
83.239.151.0/24 256
5.9%
Rostelecom RU
83.239.158.0/24 256
2.3%
Rostelecom RU
83.239.164.0/24 256
99.2%
Rostelecom RU
83.239.167.0/24 256
3.1%
Rostelecom RU
83.239.176.0/24 256
27.7%
Rostelecom RU
83.239.179.0/24 256
1.2%
Rostelecom RU
83.239.191.0/24 256
0.8%
Rostelecom RU
85.172.170.0/24 256
0.0%
Rostelecom RU
94.233.47.0/24 256
98.8%
Rostelecom RU
94.233.70.0/24 256
98.8%
Rostelecom RU
178.35.148.0/24 256
2.0%
Rostelecom RU
178.35.153.0/24 256
2.0%
Rostelecom RU
178.35.173.0/24 256
0.0%
Rostelecom RU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS33934 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
85.173.192.0/19 16,068 2026-09-11 04:55:55
83.239.128.0/18 15,967 2026-09-11 04:22:30
85.172.112.0/20 15,918 2026-09-11 04:56:08
85.173.64.0/19 15,901 2026-09-11 04:22:30
85.173.84.0/23 15,840 2026-09-11 04:22:30
85.174.69.0/24 15,835 2026-09-11 04:56:12
85.174.70.0/23 15,833 2026-09-11 04:56:06
85.173.80.0/22 15,822 2026-09-11 04:22:30
85.174.0.0/17 15,811 2026-09-11 04:22:30
85.172.168.0/22 15,811 2026-09-11 04:22:30
85.174.80.0/22 15,791 2026-09-11 04:22:30
85.174.100.0/24 15,785 2026-09-11 04:22:30
85.172.122.0/24 15,782 2026-09-11 04:22:30
85.172.120.0/23 15,767 2026-09-11 04:22:30
85.172.126.0/23 15,765 2026-09-11 04:22:30
85.174.63.0/24 15,739 2026-09-11 04:22:30
85.174.84.0/24 15,717 2026-09-11 04:22:30
178.35.128.0/18 15,461 2026-09-11 04:11:36
83.239.138.0/23 7,911 2026-09-11 04:56:02
83.239.172.0/22 7,875 2026-09-11 04:56:01
83.239.142.0/23 7,854 2026-09-11 04:22:30
83.239.128.0/22 7,815 2026-09-11 04:22:30
83.239.156.0/23 7,808 2026-09-11 04:22:30
83.239.132.0/24 7,807 2026-09-11 04:22:30
83.239.176.0/24 7,806 2026-09-11 04:56:05
83.239.167.0/24 7,798 2026-09-11 04:22:30
83.239.162.0/23 7,792 2026-09-11 04:22:30
83.239.168.0/23 7,791 2026-09-11 04:22:30
83.239.158.0/24 7,769 2026-09-11 04:22:30
83.239.188.0/23 7,762 2026-09-11 04:22:30
83.239.161.0/24 7,756 2026-09-11 04:22:30
83.239.144.0/24 7,751 2026-09-11 04:22:30
83.239.152.0/22 7,748 2026-09-11 04:22:30
83.239.164.0/24 7,748 2026-09-11 04:22:30
83.239.191.0/24 7,743 2026-09-11 04:22:30
83.239.151.0/24 7,737 2026-09-11 04:22:30
85.172.170.0/24 7,728 2026-09-11 04:22:30
83.239.180.0/22 7,726 2026-09-11 04:22:30
83.239.184.0/22 7,726 2026-09-11 04:22:30
85.173.208.0/23 7,711 2026-09-11 04:22:30
83.239.179.0/24 7,707 2026-09-11 04:22:30
94.233.66.0/23 7,694 2026-09-11 04:55:58
94.233.32.0/21 7,679 2026-09-11 04:55:57
94.233.70.0/24 7,566 2026-09-11 04:56:04
94.233.30.0/23 7,564 2026-09-11 04:56:09
94.233.24.0/22 7,525 2026-09-11 04:22:30
94.233.126.0/23 7,508 2026-09-11 04:22:30
94.233.28.0/24 7,499 2026-09-11 04:22:30
94.233.23.0/24 7,498 2026-09-11 04:22:30
94.233.48.0/21 7,487 2026-09-11 04:22:30

Showing top 50 of 62 announced prefixes by sample volume.

Frequently Asked Questions

What is AS33934?

AS33934 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 AS33934 announce?

AS33934 announces 47.4K IPv4 addresses distributed across 50 routed CIDR prefixes. The network is registered in Russia.

Who operates AS33934?

AS33934 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 AS33934 registered in?

AS33934 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-11 05:09:06 UTC
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