AS25251 ARTCON-AS Alpha Online Ltd

ARTCON-AS Alpha Online Ltd · registered in Russia

IPv4 addresses2,5606 prefixes · <0.001% of announced IPv4

Rank in Russia#1,246largest network in RU by IPv4 space, of 4,937 · <0.01% of RU

Rank worldwide#20,067of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryRussia4,993 ASNs registered there

Open AS25251 in ASN lookup Look up an IP in this network (81.94.32.1) All networks in Russia

IPv4 prefixes

All 6 prefixes, in address order.

81.94.32.0/23
81.94.35.0/24
81.94.37.0/24
81.94.39.0/24
81.94.42.0/24
81.94.44.0/22

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AS28809#1247 NAUKANET-AS LLC "Nauka-Svyaz"2,560

AS30856#1248 RU-NTMK-AS PJSC "EVRAZ"2,560

AS34192#1249 AMROX Amrox LLC2,560

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