AS51410 AS51410 Fastnet LLC

AS51410 Fastnet LLC · registered in Russia

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Russia#3,254largest network in RU by IPv4 space, of 4,937 · <0.01% of RU

Rank worldwide#61,377of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryRussia4,993 ASNs registered there

Open AS51410 in ASN lookup Look up an IP in this network (91.217.137.1) All networks in Russia

IPv4 prefixes

All 1 prefix, in address order.

91.217.137.0/24

IPv6 prefixes

All 1 prefix.

2001:67c:13e4::/48

Similar-sized networks in Russia

ASNNameIPv4 addresses

AS50955#3251 AHOST-AS Individual Entrepreneur Iugov Denis Sergeevich256

AS51067#3252 KRAZ-AS Sibinfosoft LLC256

AS51289#3253 SKYDNS-AS SkyDNS Ltd256

AS51628#3255 EAV-AS Aleksey Ershov256

AS51883#3256 PUMORI-AS Pumori-Telecom Ltd256

AS56390#3257 KEMOMS-AS TFOMS Kemerovskoy oblasti - Kuzbassa256

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