AS51783 dedic-center-as The Center of Dedicated Servers LLC

dedic-center-as The Center of Dedicated Servers LLC · registered in Russia

IPv4 addresses3,5845 prefixes · <0.001% of announced IPv4

Rank in Russia#1,041largest network in RU by IPv4 space, of 4,937 · <0.01% of RU

Rank worldwide#16,885of 79,396 networks with IPv4

IPv610 x /32 (655,360 x /48)3 prefixes

CountryRussia4,993 ASNs registered there

Open AS51783 in ASN lookup Look up an IP in this network (5.8.66.1) All networks in Russia

IPv4 prefixes

All 5 prefixes, in address order.

5.8.66.0/23
85.143.168.0/22
85.143.188.0/23
91.221.70.0/23
185.189.132.0/22

IPv6 prefixes

All 3 prefixes.

2a0b:e980::/29
2a11:77c5::/32
2a11:bdc6::/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