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Autonomous System

AS51570

JSC ER-Telecom Holding

Announced IPs
123,392
CIDR prefixes
35
ASN
AS51570

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

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
188.187.0.0/17 32.8K
100.0%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.164.64.0/18 16.4K
98.3%
JSC ER-Telecom Holding RU
5.16.32.0/19 8.2K
0.0%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.16.64.0/19 8.2K
0.0%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.166.128.0/19 8.2K
98.8%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.167.192.0/19 8.2K
97.8%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.3.176.0/20 4.1K
99.0%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.16.112.0/20 4.1K
0.0%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.167.176.0/20 4.1K
98.3%
JSC ER-Telecom Holding RU
84.22.208.0/20 4.1K
0.3%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
109.195.80.0/20 4.1K
99.7%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.16.96.0/21 2.0K
0.0%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
91.246.160.0/21 2.0K
99.6%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
94.232.128.0/21 2.0K
99.6%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
176.215.64.0/21 2.0K
94.2%
JSC ER-Telecom Holding RU Mariy-El Republic Morki
188.186.136.0/21 2.0K
99.3%
JSC ER-Telecom Holding RU
217.12.72.0/21 2.0K
96.8%
JSC ER-Telecom Holding RU St.-Petersburg St Petersburg
5.16.20.0/22 1.0K
0.0%
JSC ER-Telecom Holding RU
176.212.136.0/22 1.0K
93.9%
JSC ER-Telecom Holding RU
185.61.128.0/22 1.0K
99.8%
JSC ER-Telecom Holding RU
185.67.168.0/22 1.0K
99.9%
JSC ER-Telecom Holding RU
5.3.24.0/23 512
47.7%
JSC ER-Telecom Holding RU
5.16.144.0/23 512
0.0%
JSC ER-Telecom Holding RU
5.18.108.0/23 512
0.0%
JSC ER-Telecom Holding RU
5.18.172.0/23 512
0.0%
JSC ER-Telecom Holding RU
5.3.9.0/24 256
96.9%
JSC ER-Telecom Holding RU
5.3.19.0/24 256
97.3%
JSC ER-Telecom Holding RU
5.3.31.0/24 256
98.0%
JSC ER-Telecom Holding RU
5.3.38.0/24 256
97.3%
JSC ER-Telecom Holding RU
5.3.44.0/24 256
99.2%
JSC ER-Telecom Holding RU
5.3.49.0/24 256
98.0%
JSC ER-Telecom Holding RU
5.3.57.0/24 256
98.0%
JSC ER-Telecom Holding RU
5.3.62.0/24 256
94.9%
JSC ER-Telecom Holding RU
5.16.146.0/24 256
0.0%
JSC ER-Telecom Holding RU
188.187.234.0/24 256
100.0%
JSC ER-Telecom Holding RU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS51570 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
5.16.32.0/19 11,087 2026-07-24 17:24:43
5.16.112.0/20 11,086 2026-07-24 17:24:43
5.3.184.0/21 11,081 2026-07-24 17:24:43
5.3.176.0/20 11,080 2026-07-24 17:24:43
5.16.72.0/22 11,074 2026-07-24 17:24:43
5.16.76.0/22 11,069 2026-07-24 17:24:43
5.3.24.0/24 11,060 2026-07-24 17:24:43
5.16.64.0/19 11,059 2026-07-24 17:24:43
5.16.84.0/22 11,049 2026-07-24 17:24:43
5.16.96.0/22 11,044 2026-07-24 17:24:43
5.16.100.0/22 11,042 2026-07-24 17:24:43
5.3.176.0/21 11,041 2026-07-24 17:24:43
5.16.92.0/22 11,038 2026-07-24 17:24:43
5.3.19.0/24 11,035 2026-07-24 17:24:43
5.16.88.0/22 11,032 2026-07-24 17:24:43
5.3.49.0/24 11,029 2026-07-24 17:24:43
5.16.80.0/22 11,022 2026-07-24 17:24:43
5.3.38.0/24 11,008 2026-07-24 17:24:43
5.3.9.0/24 11,004 2026-07-24 17:24:43
5.3.62.0/24 11,003 2026-07-24 17:24:43
5.3.44.0/24 11,003 2026-07-24 17:24:43
5.3.25.0/24 11,002 2026-07-24 17:24:43
5.3.57.0/24 10,987 2026-07-24 17:24:43
5.3.31.0/24 10,982 2026-07-24 17:24:43
5.164.64.0/18 10,981 2026-07-24 17:24:43
5.164.92.0/22 10,978 2026-07-24 17:24:43
5.167.192.0/22 10,976 2026-07-24 17:24:43
5.167.196.0/22 10,974 2026-07-24 17:24:43
5.166.144.0/22 10,968 2026-07-24 17:24:43
5.164.96.0/22 10,967 2026-07-24 17:24:43
5.167.200.0/22 10,965 2026-07-24 17:24:43
5.167.208.0/22 10,964 2026-07-24 17:24:43
5.164.84.0/22 10,952 2026-07-24 17:24:43
5.167.216.0/22 10,950 2026-07-24 17:24:43
5.164.68.0/22 10,942 2026-07-24 17:24:43
5.167.176.0/20 10,940 2026-07-24 17:24:43
5.167.220.0/22 10,940 2026-07-24 17:24:43
5.166.156.0/22 10,937 2026-07-24 17:24:43
5.167.184.0/22 10,935 2026-07-24 17:24:43
5.166.136.0/22 10,932 2026-07-24 17:24:43
5.167.204.0/22 10,932 2026-07-24 17:24:43
5.164.80.0/22 10,931 2026-07-24 17:24:43
5.166.152.0/22 10,931 2026-07-24 17:24:43
5.164.76.0/22 10,928 2026-07-24 17:24:43
5.166.148.0/22 10,927 2026-07-24 17:24:43
5.167.188.0/22 10,922 2026-07-24 17:24:43
5.167.212.0/22 10,916 2026-07-24 17:24:43
5.164.88.0/22 10,912 2026-07-24 17:24:43
5.166.128.0/22 10,912 2026-07-24 17:24:43
5.164.64.0/22 10,911 2026-07-24 17:24:43

Showing top 50 of 127 announced prefixes by sample volume.

Frequently Asked Questions

What is AS51570?

AS51570 is an Autonomous System Number assigned to JSC ER-Telecom Holding. 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 AS51570 announce?

AS51570 announces 123.4K IPv4 addresses distributed across 35 routed CIDR prefixes. The network is registered in Russia.

Who operates AS51570?

AS51570 is operated by JSC ER-Telecom Holding. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS51570 registered in?

AS51570 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 18:10:32 UTC
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