AS29056 CITYCOM-AS Citycom Telekommunikation GmbH

CITYCOM-AS Citycom Telekommunikation GmbH · registered in Austria

IPv4 addresses33,28017 prefixes · 0.001% of announced IPv4

Rank in Austria#46largest network in AT by IPv4 space, of 619 · 0.32% of AT

Rank worldwide#4,715of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryAustria646 ASNs registered there

Open AS29056 in ASN lookup Look up an IP in this network (37.143.176.1) All networks in Austria

IPv4 prefixes

All 17 prefixes, in address order.

37.143.176.0/20
77.75.23.0/24
85.237.0.0/19
91.143.96.0/20
91.208.56.0/24
109.73.144.0/20
185.15.236.0/22
185.220.252.0/22
185.222.128.0/22
185.225.144.0/22
185.228.128.0/22
185.233.144.0/22
185.236.72.0/22
193.46.248.0/24
194.110.78.0/24
195.88.238.0/23
217.29.144.0/20

IPv6 prefixes

All 1 prefix.

2a02:758::/32

Similar-sized networks in Austria

ASNNameIPv4 addresses

AS35369#43 LINZAG-TELEKOM-AS LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation38,400

AS47692#44 NESSUS Nessus GmbH37,376

AS31543#45 MYNET-AS myNet GmbH34,560

AS2488#47 IIASA-NET International Institute for Applied Systems Analysis32,768

AS57169#48 EDIS-AS-EU EDIS GmbH31,232

AS31510#49 IKB-AS Innsbrucker Kommunalbetriebe AG27,904

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