AS39912 i3B-AS oja.at GmbH

i3B-AS oja.at GmbH · registered in Austria

IPv4 addresses49,92046 prefixes · 0.002% of announced IPv4

Rank in Austria#40largest network in AT by IPv4 space, of 619 · 0.48% of AT

Rank worldwide#3,927of 79,396 networks with IPv4

IPv63 x /32 (196,608 x /48)3 prefixes

CountryAustria646 ASNs registered there

Open AS39912 in ASN lookup Look up an IP in this network (37.186.0.1) All networks in Austria

IPv4 prefixes

All 46 prefixes, in address order.

37.186.0.0/22
37.186.4.0/24
37.186.6.0/23
37.186.8.0/21
37.186.16.0/21
77.220.96.0/21
77.220.104.0/22
77.220.108.0/24
77.220.110.0/23
77.220.112.0/22
77.220.120.0/21
78.142.64.0/23
78.142.68.0/22
78.142.72.0/21
78.142.96.0/20
78.142.112.0/22
78.142.116.0/23
78.142.122.0/23
78.142.124.0/22
81.94.48.0/22
81.94.52.0/23
81.94.54.0/24
81.94.56.0/21
91.206.224.0/23
92.42.16.0/22
92.63.208.0/22
92.63.212.0/24
92.63.214.0/23
92.63.216.0/21
93.185.128.0/20
95.143.80.0/20
193.47.156.0/24
194.34.226.0/24
195.16.224.0/21
195.16.232.0/22
195.16.236.0/23
195.16.238.0/24
195.16.241.0/24
195.16.242.0/23
195.16.245.0/24
195.16.246.0/23
195.16.251.0/24
195.16.253.0/24
195.16.254.0/23
195.140.136.0/22
213.139.252.0/22

IPv6 prefixes

All 3 prefixes.

2a00:e98::/32
2a01:f8::/32
2a01:100::/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