AS42378 RTR-AS Rundfunk und Telekom Regulierungs-GmbH

RTR-AS Rundfunk und Telekom Regulierungs-GmbH · registered in Austria

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Austria#443largest network in AT by IPv4 space, of 619 · <0.01% of AT

Rank worldwide#60,873of 79,396 networks with IPv4

IPv62 x /482 prefixes

CountryAustria646 ASNs registered there

Open AS42378 in ASN lookup Look up an IP in this network (81.16.157.1) All networks in Austria

IPv4 prefixes

All 1 prefix, in address order.

81.16.157.0/24

IPv6 prefixes

All 2 prefixes.

2a01:190:15fd::/48
2a01:190:15fe::/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