AS43278 CASTLES-AS Castles LLC

CASTLES-AS Castles LLC · registered in Russia

IPv4 addresses4,86418 prefixes · <0.001% of announced IPv4

Rank in Russia#843largest network in RU by IPv4 space, of 4,937 · 0.01% of RU

Rank worldwide#13,971of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryRussia4,993 ASNs registered there

Open AS43278 in ASN lookup Look up an IP in this network (5.42.211.1) All networks in Russia

IPv4 prefixes

All 18 prefixes, in address order.

5.42.211.0/24
45.129.237.0/24
45.137.154.0/24
80.242.59.0/24
91.192.93.0/24
91.220.80.0/24
95.181.158.0/24
152.89.199.0/24
170.168.20.0/24
185.189.255.0/24
185.207.214.0/24
189.74.109.0/24
189.74.110.0/23
194.147.90.0/24
195.18.27.0/24
212.46.36.0/24
213.109.97.0/24
213.226.115.0/24

IPv6 prefixes

All 1 prefix.

2a06:1301:4350::/48

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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