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AS8387
AS8387 T-SYSTEMS-AT Deutsche Telekom Global Business Solutions GmbH
T-SYSTEMS-AT Deutsche Telekom Global Business Solutions GmbH · registered in Austria
IPv4 addresses 91,648 23 prefixes · 0.003% of announced IPv4
Rank in Austria #12 largest network in AT by IPv4 space, of 619 · 0.89% of AT
Rank worldwide #1,989 of 79,396 networks with IPv4
IPv6 1 x /32 (65,538 x /48) 3 prefixes
Country Austria 646 ASNs registered there
IPv4 prefixes
All 23 prefixes, in address order.
46.17.224.0/21 92.61.208.0/20 164.3.0.0/16 185.49.176.0/22 193.46.45.0/24 193.162.45.0/24 194.247.47.0/24 207.244.212.0/24 212.31.64.0/19 212.95.17.0/24 212.166.96.0/21 212.166.104.0/22 212.166.108.0/24 212.166.109.0/24 212.166.110.0/23 212.166.112.0/23 212.166.114.0/23 212.166.116.0/22 212.166.120.0/22 212.166.124.0/22 213.162.64.0/23 213.162.78.0/24 216.120.174.0/23
IPv6 prefixes
All 3 prefixes.
2001:678:554::/48 2001:678:5a8::/48 2001:9d0::/32
Similar-sized networks in Austria
ASN Name IPv4 addresses
AS679 #9 TUNET-AS Technische Universitat Wien132,096
AS760 #10 UniVie - Vienna University99,584
AS42473 #11 AS-ANEXIA Anexia Cloud Solutions GmbH94,464
AS5403 #13 AS5403 APA-IT Informations Technologie G.m.b.H87,552
AS1764 #14 NEXTLAYER-AS Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH81,152
AS8245 #15 VIDEOBROADCAST-AS Video-Broadcast GmbH75,776
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