AS51004
Sakhalin Cable Telesystems Ltd
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.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 188.113.128.0/18 | 16.4K |
99.6%
|
Sakhalin Cable Telesystems Ltd | RU | Sakhalin Oblast | Yuzhno-Sakhalinsk |
| 185.74.228.0/22 | 1.0K |
99.5%
|
Sakhalin Cable Telesystems Ltd | RU | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51004 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 188.113.129.0/24 | 103,928 | 2026-10-17 19:48:40 |
| 188.113.141.0/24 | 103,725 | 2026-10-17 19:48:40 |
| 188.113.152.0/23 | 67,778 | 2026-10-17 19:48:40 |
| 188.113.190.0/24 | 53,698 | 2026-10-17 19:48:40 |
| 188.113.162.0/24 | 44,731 | 2026-10-17 19:48:42 |
| 188.113.163.0/24 | 44,650 | 2026-10-17 19:48:42 |
| 188.113.157.0/24 | 44,500 | 2026-10-17 19:48:42 |
| 188.113.174.0/24 | 44,498 | 2026-10-17 19:48:42 |
| 188.113.140.0/24 | 44,485 | 2026-10-17 19:48:42 |
| 188.113.155.0/24 | 44,478 | 2026-10-17 19:48:42 |
| 188.113.179.0/24 | 44,454 | 2026-10-17 19:48:42 |
| 188.113.167.0/24 | 44,450 | 2026-10-17 19:48:42 |
| 188.113.180.0/24 | 44,443 | 2026-10-17 19:48:42 |
| 188.113.138.0/24 | 44,442 | 2026-10-17 19:48:42 |
| 188.113.143.0/24 | 44,439 | 2026-10-17 19:48:42 |
| 188.113.172.0/24 | 42,941 | 2026-10-17 19:48:40 |
| 188.113.164.0/24 | 41,040 | 2026-10-17 19:48:40 |
| 188.113.156.0/24 | 41,027 | 2026-10-17 19:48:40 |
| 188.113.171.0/24 | 41,022 | 2026-10-17 19:48:40 |
| 188.113.154.0/24 | 41,001 | 2026-10-17 19:48:40 |
| 188.113.135.0/24 | 40,980 | 2026-10-17 19:48:40 |
| 188.113.188.0/24 | 40,978 | 2026-10-17 19:48:40 |
| 188.113.159.0/24 | 40,975 | 2026-10-17 19:48:40 |
| 188.113.181.0/24 | 40,966 | 2026-10-17 19:48:40 |
| 188.113.187.0/24 | 40,966 | 2026-10-17 19:48:40 |
| 188.113.176.0/24 | 40,948 | 2026-10-17 19:48:40 |
| 188.113.168.0/24 | 40,943 | 2026-10-17 19:48:40 |
| 188.113.185.0/24 | 40,935 | 2026-10-17 19:48:40 |
| 188.113.178.0/24 | 40,907 | 2026-10-17 19:48:40 |
| 188.113.142.0/24 | 40,905 | 2026-10-17 19:48:40 |
| 188.113.128.0/24 | 39,242 | 2026-10-17 19:48:40 |
| 188.113.158.0/24 | 37,633 | 2026-10-17 19:48:40 |
| 188.113.166.0/24 | 37,435 | 2026-10-17 19:48:40 |
| 188.113.150.0/23 | 33,538 | 2026-10-17 19:48:40 |
| 185.74.228.0/22 | 15,550 | 2026-10-17 19:48:40 |
| 188.113.128.0/18 | 15,472 | 2026-10-17 19:48:40 |
Frequently Asked Questions
What is AS51004?
AS51004 is an Autonomous System Number assigned to Sakhalin Cable Telesystems Ltd. 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 AS51004 announce?
AS51004 announces 17.4K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Russia.
Who operates AS51004?
AS51004 is operated by Sakhalin Cable Telesystems Ltd. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.
What country is AS51004 registered in?
AS51004 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
