AS21039 E-STEIERMARK-ASN Energie Steiermark AG

E-STEIERMARK-ASN Energie Steiermark AG · registered in Austria

IPv4 addresses6,1448 prefixes · <0.001% of announced IPv4

Rank in Austria#109largest network in AT by IPv4 space, of 619 · 0.06% of AT

Rank worldwide#12,392of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryAustria646 ASNs registered there

Open AS21039 in ASN lookup Look up an IP in this network (193.186.216.1) All networks in Austria

IPv4 prefixes

All 8 prefixes, in address order.

193.186.216.0/22
193.186.220.0/23
193.186.222.0/24
193.186.223.0/24
193.186.224.0/23
193.186.226.0/23
193.186.228.0/22
193.186.232.0/21

Similar-sized networks in Austria

ASNNameIPv4 addresses

AS12453#106 KRAFTCOM-AS KraftCom Service GmbH6,400

AS13022#107 STREAMS_GMBH Streams Telecommunicationsservices GmbH6,400

AS61109#108 STWIMST Stadtgemeinde/Stadtwerke Imst6,144

AS42587#110 MAGNAEU Magna Automotive Holding GmbH6,144

AS40994#111 Alwyzon Hohl IT e.U.5,888

AS211582#112 ecomDATA-AS ecomDATA GmbH5,632

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