AS396121 Bayer Corporation

BAYER-BERKELEY - Bayer Corporation · registered in the United States

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in United States#9,927largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#46,070of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS396121 in ASN lookup Look up an IP in this network (149.234.230.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

149.234.230.0/23
205.166.66.0/24

Other ASNs named Bayer Corporation

2 other networks use the same organisation name; together with AS396121 they announce 15,104 IPv4 addresses.

ASNNameIPv4 addresses

AS23167BAYER-ARCH - Bayer Corporation US13,824

AS399076BAYER-MEX - Bayer Corporation US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS395982#9924 WKMC-ASN - Willis-Knighton Medical Center768

AS395987#9925 SEU-MORRISTOWN - Saint Elizabeth University768

AS396012#9926 COS-ASN01 - City of Scottsdale768

AS396145#9928 EXACTSCIENCES - Exact Sciences Corporation768

AS396173#9929 SWA-W11-MKT-INET - Southwest Airlines Co.768

AS396202#9930 PBXI - PBXi768

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