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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 v1.1.0 — 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

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 7,112 2026-07-22 14:54:14
85.173.64.0/19 7,093 2026-07-22 14:54:14
83.239.128.0/18 7,079 2026-07-22 14:54:14
85.174.70.0/23 7,078 2026-07-22 14:54:14
85.172.112.0/20 7,075 2026-07-22 14:54:14
85.174.69.0/24 7,071 2026-07-22 14:54:14
85.174.0.0/17 7,065 2026-07-22 14:54:14
85.174.100.0/24 7,060 2026-07-22 14:54:14
85.174.80.0/22 7,051 2026-07-22 14:54:14
85.173.84.0/23 7,048 2026-07-22 14:54:14
85.172.168.0/22 7,032 2026-07-22 14:54:14
85.174.63.0/24 7,031 2026-07-22 14:54:14
85.173.80.0/22 7,030 2026-07-22 14:54:14
85.174.84.0/24 7,011 2026-07-22 14:54:14
85.172.120.0/23 7,010 2026-07-22 14:54:14
85.172.126.0/23 7,009 2026-07-22 14:54:14
85.172.122.0/24 7,000 2026-07-22 14:54:14
178.35.128.0/18 7,000 2026-07-22 14:54:14
94.233.0.0/17 4,334 2026-07-22 14:54:14
83.239.138.0/23 4,252 2026-07-22 14:54:14
83.239.172.0/22 4,239 2026-07-22 14:54:14
83.239.176.0/24 4,232 2026-07-22 14:54:14
83.239.142.0/23 4,220 2026-07-22 14:54:14
94.233.66.0/23 4,211 2026-07-22 14:54:14
83.239.128.0/22 4,211 2026-07-22 14:54:14
94.233.32.0/21 4,210 2026-07-22 14:54:14
83.239.167.0/24 4,209 2026-07-22 14:54:14
83.239.162.0/23 4,208 2026-07-22 14:54:14
83.239.168.0/23 4,205 2026-07-22 14:54:14
83.239.132.0/24 4,202 2026-07-22 14:54:14
83.239.156.0/23 4,201 2026-07-22 14:54:14
94.233.30.0/23 4,200 2026-07-22 14:54:14
83.239.188.0/23 4,198 2026-07-22 14:54:14
85.173.208.0/23 4,197 2026-07-22 14:54:14
94.233.70.0/24 4,197 2026-07-22 14:54:14
83.239.164.0/24 4,193 2026-07-22 14:54:14
85.172.170.0/24 4,191 2026-07-22 14:54:14
83.239.161.0/24 4,191 2026-07-22 14:54:14
83.239.180.0/22 4,191 2026-07-22 14:54:14
83.239.191.0/24 4,189 2026-07-22 14:54:14
94.233.24.0/22 4,186 2026-07-22 14:54:14
94.233.126.0/23 4,184 2026-07-22 14:54:14
83.239.152.0/22 4,183 2026-07-22 14:54:14
83.239.158.0/24 4,182 2026-07-22 14:54:14
83.239.144.0/24 4,178 2026-07-22 14:54:14
83.239.184.0/22 4,175 2026-07-22 14:54:14
83.239.179.0/24 4,172 2026-07-22 14:54:14
83.239.151.0/24 4,172 2026-07-22 14:54:14
94.233.28.0/24 4,169 2026-07-22 14:54:14
94.233.48.0/21 4,163 2026-07-22 14:54:14

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: 2026-07-22 15:10:33 UTC
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