AS12349 Bayer-AS Bayer AG

Bayer-AS Bayer AG · registered in Germany

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Germany#1,639largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#49,769of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryGermany2,599 ASNs registered there

Open AS12349 in ASN lookup Look up an IP in this network (164.59.144.1) All networks in Germany

IPv4 prefixes

All 1 prefix, in address order.

164.59.144.0/23

Other ASNs named Bayer-AS Bayer AG

2 other networks use the same organisation name; together with AS12349 they announce 178,176 IPv4 addresses.

ASNNameIPv4 addresses

AS13043Bayer-AS Bayer AG DE177,152

AS29088Bayer-AS Bayer AG DE512

Similar-sized networks in Germany

ASNNameIPv4 addresses

AS6733#1636 BfArM Bundesinstitut fuer Arzneimittel und Medizinprodukte (BfArM)512

AS8222#1637 NORIS noris network AG512

AS12298#1638 QIAGEN-AS QIAGEN GmbH512

AS12546#1640 KLEEMANN-AS Kleemann GmbH512

AS12830#1641 INFRA-MAIN-AS InfraNet AG512

AS15479#1642 FibreLac euNetworks GmbH512

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