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AS399432 Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas bcbstx.com

US 1 Routes

AS Data

AS399432

AS399432 – Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas

AS Number	399432
AS Name	AS-MS-78058
Organization	Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas(hscbcbi)
Country	US
Website	bcbstx.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2021-03-10

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Use ASN data for AS399432 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
63.215.122.0/24	AS399432	Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas	Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas	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:       399432
ASName:         AS-MS-78058
ASHandle:       AS399432
RegDate:        2021-03-10
Updated:        2021-03-10    
Ref:            https://rdap.arin.net/registry/autnum/399432


OrgName:        Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas
OrgId:          HSCBCBI
Address:        300 E. Randolph Street
City:           Chicago
StateProv:      IL
PostalCode:     60601
Country:        US
RegDate:        2002-03-27
Updated:        2024-05-17
Ref:            https://rdap.arin.net/registry/entity/HSCBCBI


OrgTechHandle: MSA111-ARIN
OrgTechName:   Sanner, Michael 
OrgTechPhone:  +1-972-766-3576 
OrgTechEmail:  michael_sanner@bcbstx.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MSA111-ARIN

OrgTechHandle: BARRK5-ARIN
OrgTechName:   Barr, Kevin 
OrgTechPhone:  +1-972-766-4412 
OrgTechEmail:  kevin_barr@bcbstx.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BARRK5-ARIN

OrgAbuseHandle: MSA111-ARIN
OrgAbuseName:   Sanner, Michael 
OrgAbusePhone:  +1-972-766-3576 
OrgAbuseEmail:  michael_sanner@bcbstx.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MSA111-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
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US

Frequently Asked Questions

What is ASN AS399432?

ASN AS399432 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399432?

AS399432 is listed under Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas.

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.