AS24603 XOO-AS Ulf Kieber

XOO-AS Ulf Kieber · registered in Germany

IPv4 addresses2,8164 prefixes · <0.001% of announced IPv4

Rank in Germany#724largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#19,283of 79,396 networks with IPv4

IPv63 x /482 prefixes

CountryGermany2,599 ASNs registered there

Open AS24603 in ASN lookup Look up an IP in this network (45.152.100.1) All networks in Germany

IPv4 prefixes

All 4 prefixes, in address order.

45.152.100.0/22
185.105.80.0/22
193.108.179.0/24
195.42.100.0/23

IPv6 prefixes

All 2 prefixes.

2001:67c:ef4::/48
2001:67c:12e8::/47

Similar-sized networks in Germany

ASNNameIPv4 addresses

AS200303#721 LUMASERV LUMASERV GmbH2,816

AS34568#722 CONNECTINGBYTES-AS ConnectingBytes GmbH2,816

AS61343#723 PATRONAS-AS Etops Germany AM GmbH2,816

AS48519#725 KNIPP-AMS-AS Knipp Medien und Kommunikation GmbH2,816

AS203833#726 AT-FIRSTCOLO firstcolo GmbH2,816

AS24640#727 BSWS-AS BS Web Services GmbH2,816

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