ASN AS17033 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS17033?

AS17033 is listed under CSL Behring L.L.C.

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.

AS17033 CSL Behring L.L.C | IPGeolocation.io

ASN Lookup Tool

CSL Behring L.L.C cslbehring.com

US 2 Routes

AS Data

AS17033

AS17033 – CSL Behring L.L.C

AS Number	17033
AS Name	CSL-ASN-AS17033
Organization	CSL Behring L.L.C(cbl-154)
Country	US
Website	cslbehring.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2022-06-08

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Use ASN data for AS17033 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
8.48.225.0/24	AS17033	CSL Behring L.L.C	CSL Behring L.L.C	256
12.3.33.0/24	AS17033	CSL Behring L.L.C	AVENTIS BEHRING ZLB BEHRING	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:       17033
ASName:         CSL-ASN-AS17033
ASHandle:       AS17033
RegDate:        2022-06-08
Updated:        2022-06-08    
Ref:            https://rdap.arin.net/registry/autnum/17033


OrgName:        CSL Behring L.L.C
OrgId:          CBL-154
Address:        1020 First Avenue
City:           King of Prussia
StateProv:      PA
PostalCode:     19406
Country:        US
RegDate:        2019-06-19
Updated:        2022-04-04
Ref:            https://rdap.arin.net/registry/entity/CBL-154


OrgDNSHandle: IWANC-ARIN
OrgDNSName:   Iwanczyk, Wojtek 
OrgDNSPhone:  +1-516-642-3653 
OrgDNSEmail:  Wojtek.Iwanczyk@cslbehring.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/IWANC-ARIN

OrgTechHandle: IWANC-ARIN
OrgTechName:   Iwanczyk, Wojtek 
OrgTechPhone:  +1-516-642-3653 
OrgTechEmail:  Wojtek.Iwanczyk@cslbehring.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IWANC-ARIN

OrgAbuseHandle: IWANC-ARIN
OrgAbuseName:   Iwanczyk, Wojtek 
OrgAbusePhone:  +1-516-642-3653 
OrgAbuseEmail:  Wojtek.Iwanczyk@cslbehring.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IWANC-ARIN

OrgNOCHandle: IWANC-ARIN
OrgNOCName:   Iwanczyk, Wojtek 
OrgNOCPhone:  +1-516-642-3653 
OrgNOCEmail:  Wojtek.Iwanczyk@cslbehring.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/IWANC-ARIN

OrgRoutingHandle: IWANC-ARIN
OrgRoutingName:   Iwanczyk, Wojtek 
OrgRoutingPhone:  +1-516-642-3653 
OrgRoutingEmail:  Wojtek.Iwanczyk@cslbehring.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/IWANC-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
AS7018	AT&T Enterprises, LLC	US
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS1239	Cogent Communications, LLC	US
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US