AS51004 SCTS-AS Sakhalin Cable Telesystems Ltd

SCTS-AS Sakhalin Cable Telesystems Ltd · registered in Russia

IPv4 addresses17,40828 prefixes · <0.001% of announced IPv4

Rank in Russia#307largest network in RU by IPv4 space, of 4,937 · 0.04% of RU

Rank worldwide#6,641of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryRussia4,993 ASNs registered there

Open AS51004 in ASN lookup Look up an IP in this network (185.74.228.1) All networks in Russia

IPv4 prefixes

All 28 prefixes, in address order.

185.74.228.0/22
188.113.128.0/23
188.113.130.0/23
188.113.132.0/22
188.113.136.0/23
188.113.138.0/24
188.113.139.0/24
188.113.140.0/22
188.113.144.0/20
188.113.160.0/22
188.113.164.0/24
188.113.165.0/24
188.113.166.0/23
188.113.168.0/24
188.113.169.0/24
188.113.170.0/23
188.113.172.0/23
188.113.174.0/24
188.113.175.0/24
188.113.176.0/24
188.113.177.0/24
188.113.178.0/23
188.113.180.0/22
188.113.184.0/23
188.113.186.0/23
188.113.188.0/23
188.113.190.0/24
188.113.191.0/24

IPv6 prefixes

All 1 prefix.

2a00:e2a0::/32

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources