AS51733 BWI-GmbH BWI GmbH

BWI-GmbH BWI GmbH · registered in Germany

IPv4 addresses1,7925 prefixes · <0.001% of announced IPv4

Rank in Germany#916largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#25,316of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryGermany2,599 ASNs registered there

Open AS51733 in ASN lookup Look up an IP in this network (91.209.254.1) All networks in Germany

IPv4 prefixes

All 5 prefixes, in address order.

91.209.254.0/24
91.221.58.0/23
185.156.84.0/23
185.156.86.0/24
185.156.87.0/24

Similar-sized networks in Germany

ASNNameIPv4 addresses

AS41086#913 N-ERGIE-IT-NBG-AS N-ERGIE Aktiengesellschaft1,792

AS44156#914 WINNENGMBH Winnen Gesellschaft fur Elektro- und Kommunikationstechnik mbH1,792

AS47409#915 TPI-AS thinkproject Deutschland GmbH1,792

AS198661#917 MavNetworks-AS Ksenia Becker1,792

AS201284#918 Devexperts-DE Devexperts GmbH1,792

AS206240#919 PDV-SACHSEN pdv-systeme Sachsen GmbH1,792

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