AS25532 MASTERHOST-AS LLC "MASTERHOST"

MASTERHOST-AS LLC "MASTERHOST" · registered in Russia

IPv4 addresses12,54419 prefixes · <0.001% of announced IPv4

Rank in Russia#415largest network in RU by IPv4 space, of 4,937 · 0.03% of RU

Rank worldwide#8,029of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)17 prefixes

CountryRussia4,993 ASNs registered there

Open AS25532 in ASN lookup Look up an IP in this network (83.222.4.1) All networks in Russia

IPv4 prefixes

All 19 prefixes, in address order.

83.222.4.0/23
83.222.12.0/22
87.242.64.0/23
87.242.67.0/24
87.242.68.0/22
87.242.72.0/22
87.242.80.0/22
90.156.128.0/23
90.156.130.0/23
90.156.132.0/24
90.156.133.0/24
90.156.134.0/23
90.156.136.0/22
90.156.140.0/23
90.156.142.0/23
90.156.200.0/23
90.156.202.0/23
90.156.204.0/22
90.156.240.0/22

IPv6 prefixes

All 17 prefixes.

2a00:15f8::/33
2a00:15f8:8000::/35
2a00:15f8:a000::/48
2a00:15f8:a001::/48
2a00:15f8:a002::/47
2a00:15f8:a004::/46
2a00:15f8:a008::/45
2a00:15f8:a010::/44
2a00:15f8:a020::/43
2a00:15f8:a040::/42
2a00:15f8:a080::/41
2a00:15f8:a100::/40
2a00:15f8:a200::/39
2a00:15f8:a400::/38
2a00:15f8:a800::/37
2a00:15f8:b000::/36
2a00:15f8:c000::/34

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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