AS13043 Bayer-AS Bayer AG

Bayer-AS Bayer AG · registered in Germany

IPv4 addresses177,15242 prefixes · 0.006% of announced IPv4

Rank in Germany#30largest network in DE by IPv4 space, of 2,315 · 0.16% of DE

Rank worldwide#1,178of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryGermany2,599 ASNs registered there

Open AS13043 in ASN lookup Look up an IP in this network (149.234.8.1) All networks in Germany

IPv4 prefixes

All 42 prefixes, in address order.

149.234.8.0/21
149.234.16.0/20
149.234.32.0/19
149.234.64.0/24
149.234.65.0/24
149.234.66.0/23
149.234.68.0/22
149.234.72.0/21
149.234.80.0/20
149.234.96.0/20
149.234.112.0/21
149.234.120.0/22
149.234.126.0/24
164.59.0.0/17
164.59.128.0/23
164.59.130.0/24
164.59.131.0/24
164.59.132.0/22
164.59.136.0/21
164.59.146.0/23
164.59.148.0/22
164.59.152.0/21
164.59.160.0/19
164.59.192.0/20
164.59.208.0/24
164.59.209.0/24
164.59.210.0/23
164.59.212.0/22
164.59.216.0/21
164.59.224.0/21
164.59.232.0/22
164.59.236.0/23
164.59.238.0/23
164.59.240.0/20
164.60.0.0/16
193.202.128.0/19
195.47.249.0/24
212.64.224.0/22
212.64.228.0/23
212.64.230.0/23
212.64.232.0/21
212.64.240.0/20

Other ASNs named Bayer-AS Bayer AG

2 other networks use the same organisation name; together with AS13043 they announce 178,176 IPv4 addresses.

ASNNameIPv4 addresses

AS12349Bayer-AS Bayer AG DE512

AS29088Bayer-AS Bayer AG DE512

Similar-sized networks in Germany

ASNNameIPv4 addresses

AS197540#27 netcup-AS netcup GmbH218,880

AS29066#28 VELIANET-AS velia.net Internetdienste GmbH213,245

AS34878#29 KIT Karlsruhe Institute of Technology200,704

AS13045#31 HTP-AS htp GmbH175,872

AS12897#32 ENTEGAMEDIANET ENTEGA Medianet GmbH163,584

AS35244#33 TC-PEPCOM Tele Columbus AG162,560

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