AS205003 HOLTER-AS Holter Verwaltungs GmbH

HOLTER-AS Holter Verwaltungs GmbH · registered in Austria

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Austria#580largest network in AT by IPv4 space, of 619 · <0.01% of AT

Rank worldwide#74,077of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryAustria646 ASNs registered there

Open AS205003 in ASN lookup Look up an IP in this network (212.183.28.1) All networks in Austria

IPv4 prefixes

All 1 prefix, in address order.

212.183.28.0/24

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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