What is ASN AS396121?

ASN AS396121 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS396121?

AS396121 is listed under Bayer Corporation.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS396121 Bayer Corporation | IPGeolocation.io

ASN Lookup Tool

Bayer Corporation bayer.com

US 3 Routes

AS Data

AS396121

AS396121 – Bayer Corporation

AS Number	396121
AS Name	BAYER-BERKELEY
Organization	Bayer Corporation(bayerc-2)
Country	US
Website	bayer.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2017-03-15

ASN Intelligence API for production workflows

Use ASN data for AS396121 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
149.234.230.0/23	AS396121	Bayer Corporation	Bayer Corporation	512
205.166.66.0/24	AS396121	Bayer Corporation	Bayer Corporation	256
149.234.230.0/24	AS396121	Bayer Corporation	Bayer Corporation	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       396121
ASName:         BAYER-BERKELEY
ASHandle:       AS396121
RegDate:        2017-03-15
Updated:        2021-01-08    
Ref:            https://rdap.arin.net/registry/autnum/396121


OrgName:        Bayer Corporation
OrgId:          BAYERC-2
Address:        100 Bayer Road
City:           Pittsburgh
StateProv:      PA
PostalCode:     15205
Country:        US
RegDate:        1996-03-13
Updated:        2008-12-01
Ref:            https://rdap.arin.net/registry/entity/BAYERC-2


OrgTechHandle: HOSTM1349-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-862-404-3000 
OrgTechEmail:  hostmaster@bayer.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM1349-ARIN

OrgNOCHandle: HOSTM1349-ARIN
OrgNOCName:   Hostmaster
OrgNOCPhone:  +1-862-404-3000 
OrgNOCEmail:  hostmaster@bayer.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/HOSTM1349-ARIN

OrgAbuseHandle: HOSTM1349-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-862-404-3000 
OrgAbuseEmail:  hostmaster@bayer.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM1349-ARIN

RNOCHandle: HOSTM1349-ARIN
RNOCName:   Hostmaster
RNOCPhone:  +1-862-404-3000 
RNOCEmail:  hostmaster@bayer.com
RNOCRef:    https://rdap.arin.net/registry/entity/HOSTM1349-ARIN

RAbuseHandle: HOSTM1349-ARIN
RAbuseName:   Hostmaster
RAbusePhone:  +1-862-404-3000 
RAbuseEmail:  hostmaster@bayer.com
RAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM1349-ARIN

RTechHandle: HOSTM1349-ARIN
RTechName:   Hostmaster
RTechPhone:  +1-862-404-3000 
RTechEmail:  hostmaster@bayer.com
RTechRef:    https://rdap.arin.net/registry/entity/HOSTM1349-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS701	Verizon Business/UUnet	US
AS701	Verizon Business	US
AS32787	Akamai Technologies, Inc.	US

Upstreams

AS Number	Description	Country
AS701	Verizon Business	US
AS32787	Akamai Technologies, Inc.	US