AS15073 Blue Shield of California

• IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	8.21.31.0/24	Level 3 Parent, LLC		8.0.0.0/9	ARIN
	165.253.102.0/24	Blue Shield of California		165.253.0.0/16	ARIN
	165.253.106.0/24	Blue Shield of California		162.88.0.0/16	ARIN

• IPv4 Peers

Country	ASN	Name	Description
	AS3356	LEVEL3	Level 3 Parent, LLC
	AS209	CENTURYLINK-US-LEGACY-QWEST	CenturyLink Communications, LLC
	AS7018	ATT-INTERNET4	AT&T Enterprises, LLC

• IPv4 Upstreams

Country	ASN	Name	Description
	AS3356	LEVEL3	Level 3 Parent, LLC
	AS209	CENTURYLINK-US-LEGACY-QWEST	CenturyLink Communications, LLC
	AS7018	ATT-INTERNET4	AT&T Enterprises, LLC

IPv4 Upstream Graph

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IPv4 Upstream Graph

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#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
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ASNumber:       15073
ASName:         BSC-BRANCHOFFICE02
ASHandle:       AS15073
RegDate:        2005-06-27
Updated:        2022-01-05    
Ref:            https://rdap.arin.net/registry/autnum/15073


OrgName:        Blue Shield of California
OrgId:          BSC-1
Address:        4203 Town Center Blvd
City:           El Dorado Hills
StateProv:      CA
PostalCode:     95762
Country:        US
RegDate:        1993-10-18
Updated:        2021-11-15
Ref:            https://rdap.arin.net/registry/entity/BSC-1


OrgTechHandle: ITNET15-ARIN
OrgTechName:   IT-Network Engineering
OrgTechPhone:  +1-916-350-7507 
OrgTechEmail:  IT-NetworkEngineering@blueshieldca.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ITNET15-ARIN

OrgAbuseHandle: ITSIR-ARIN
OrgAbuseName:   IT-SIRT
OrgAbusePhone:  +1-916-350-7005 
OrgAbuseEmail:  abuse@blueshieldca.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ITSIR-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 1997-2025, American Registry for Internet Numbers, Ltd.
#