AS59845 TOP21SH-AS Top 21 Systemhaus GmbH

TOP21SH-AS Top 21 Systemhaus GmbH · registered in Germany

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Germany#1,584largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#48,072of 79,396 networks with IPv4

IPv62 x /481 prefixes

CountryGermany2,599 ASNs registered there

Open AS59845 in ASN lookup Look up an IP in this network (185.28.96.1) All networks in Germany

IPv4 prefixes

All 1 prefix, in address order.

185.28.96.0/23

IPv6 prefixes

All 1 prefix.

2a00:9ae0::/47

Similar-sized networks in Germany

ASNNameIPv4 addresses

AS43329#1581 ENTIRETEC-AS ENTIRETEC AG512

AS44780#1582 EVERSCALE-AS kyberio GmbH512

AS48387#1583 RTBH-AS Christian Seitz512

AS60802#1585 KB Kevin Buehl512

AS196610#1586 DECIX-Academy DE-CIX Management GmbH512

AS200912#1587 KRAUSE-AS Joel Krause512

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