AS203561 KTK-TELECOM KTK TELECOM LLC

KTK-TELECOM KTK TELECOM LLC · registered in Russia

IPv4 addresses1,0243 prefixes · <0.001% of announced IPv4

Rank in Russia#1,846largest network in RU by IPv4 space, of 4,937 · <0.01% of RU

Rank worldwide#29,957of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryRussia4,993 ASNs registered there

Open AS203561 in ASN lookup Look up an IP in this network (185.100.101.1) All networks in Russia

IPv4 prefixes

All 3 prefixes, in address order.

185.100.101.0/24
194.147.48.0/23
194.147.51.0/24

IPv6 prefixes

All 1 prefix.

2a07:e380::/29

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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