AS51921 INTSYS-AS OOO Integral telesystems

INTSYS-AS OOO Integral telesystems · registered in Russia

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Russia#3,778largest network in RU by IPv4 space, of 4,937 · <0.01% of RU

Rank worldwide#68,112of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryRussia4,993 ASNs registered there

Open AS51921 in ASN lookup Look up an IP in this network (185.58.205.1) All networks in Russia

IPv4 prefixes

All 1 prefix, in address order.

185.58.205.0/24

Similar-sized networks in Russia

ASNNameIPv4 addresses

AS51884#3775 TERATEL-AS OOO WestCall Ltd.256

AS51893#3776 PROFCOMM-AS Prof-comm Ltd256

AS51912#3777 EAO-AS Department of Digital Development and Communications of the Jewish autonomous region256

AS51971#3779 SKOLKOVO Skolkovo Managment LLC256

AS51977#3780 ROSGEOLFOND-AS FGBU ROSGEOLFOND256

AS51981#3781 FINSTAR-AS PJSC Finstar Bank256

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