AS204410 feistritzwerke-steweag Feistritzwerke-STEWEAG GmbH

feistritzwerke-steweag Feistritzwerke-STEWEAG GmbH · registered in Austria

IPv4 addresses3,3284 prefixes · <0.001% of announced IPv4

Rank in Austria#146largest network in AT by IPv4 space, of 619 · 0.03% of AT

Rank worldwide#17,404of 79,396 networks with IPv4

IPv62 x /32 (131,072 x /48)1 prefixes

CountryAustria646 ASNs registered there

Open AS204410 in ASN lookup Look up an IP in this network (78.138.20.1) All networks in Austria

IPv4 prefixes

All 4 prefixes, in address order.

78.138.20.0/22
185.243.184.0/22
193.24.212.0/22
194.107.20.0/24

IPv6 prefixes

All 1 prefix.

2a0d:1a86::/31

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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