ASN AS21639 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21639?

AS21639 is listed under Blue Cross Blue Shield Of Louisiana.

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.

AS21639 Blue Cross Blue Shield Of Louisiana

ASN Lookup Tool

Blue Cross Blue Shield Of Louisiana bcbsla.com

US 2 Routes

AS Data

AS21639

AS21639 – Blue Cross Blue Shield Of Louisiana

AS Number	21639
AS Name	BCBSLA-ASN
Organization	Blue Cross Blue Shield Of Louisiana(lhsip)
Country	US
Website	bcbsla.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2011-01-20

ASN Intelligence API for production workflows

Use ASN data for AS21639 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
165.254.60.216/29	AS21639	Blue Cross Blue Shield Of Louisiana	NTT America, Inc.	8
66.248.253.0/24	AS21639	Blue Cross Blue Shield Of Louisiana	Blue Cross Blue Shield Of Louisiana	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:       21639
ASName:         BCBSLA-ASN
ASHandle:       AS21639
RegDate:        2011-01-20
Updated:        2019-09-13
Comment:        http://www.bcbsla.com    
Ref:            https://rdap.arin.net/registry/autnum/21639


OrgName:        Blue Cross Blue Shield Of Louisiana
OrgId:          LHSIP
Address:        5525 Reitz Ave
City:           Baton Rouge
StateProv:      LA
PostalCode:     70809
Country:        US
RegDate:        2010-11-19
Updated:        2020-03-13
Ref:            https://rdap.arin.net/registry/entity/LHSIP


OrgAbuseHandle: NETWO6233-ARIN
OrgAbuseName:   Network Operations
OrgAbusePhone:  +1-225-295-2056 
OrgAbuseEmail:  datanetworkteam@bcbsla.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO6233-ARIN

OrgTechHandle: NETWO6233-ARIN
OrgTechName:   Network Operations
OrgTechPhone:  +1-225-295-2056 
OrgTechEmail:  datanetworkteam@bcbsla.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO6233-ARIN

OrgNOCHandle: NETWO6233-ARIN
OrgNOCName:   Network Operations
OrgNOCPhone:  +1-225-295-2056 
OrgNOCEmail:  datanetworkteam@bcbsla.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO6233-ARIN

RTechHandle: NETWO6233-ARIN
RTechName:   Network Operations
RTechPhone:  +1-225-295-2056 
RTechEmail:  datanetworkteam@bcbsla.com
RTechRef:    https://rdap.arin.net/registry/entity/NETWO6233-ARIN

RTechHandle: SIMMO392-ARIN
RTechName:   Simmons, Clint 
RTechPhone:  +1-225-298-7671 
RTechEmail:  clint.simmons@bcbsla.com
RTechRef:    https://rdap.arin.net/registry/entity/SIMMO392-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
AS1239	Cogent Communications, LLC	US
AS202	Level 3 Parent, LLC	US
AS2914	NTT America, Inc.	US
AS6461	Zayo Bandwidth	US
AS174	Cogent Communications, LLC	US
AS22773	Cox Communications Inc.	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS202	Level 3 Parent, LLC	US
AS2914	NTT America, Inc.	US
AS6461	Zayo Bandwidth	US
AS174	Cogent Communications, LLC	US
AS22773	Cox Communications Inc.	US