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	Prefix	Description
	159.140.0.0/22	Cerner Corporation
	159.140.8.0/21	Cerner Corporation
	159.140.104.0/22	Cerner Corporation
	159.140.212.0/22	Cerner Corporation
	159.140.252.0/24	Cerner Corporation
	159.140.254.0/24	Cerner Corporation

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS3356	Lumen (Level 3)	✔	✘
	AS7018	AT&T Enterprises, LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS3356	Lumen (Level 3)	✔	✘
	AS7018	AT&T Enterprises, LLC	✔	✘

ASHandle:       AS36502
OrgID:          CERNER
ASName:         CERNER-CORPORATE-AS
ASNumber:       36502
RegDate:        2006-01-19
Updated:        2012-03-02
TechHandle:     CNA23-ARIN
Source:         ARIN



OrgID:          CERNER
OrgName:        Cerner Corporation
CanAllocate:    
Street:         2800 Rockcreek Parkway
City:           Kansas City
State/Prov:     MO
Country:        US
PostalCode:     64117
RegDate:        1992-04-20
Updated:        2024-11-25
OrgAdminHandle: ORACL-ARIN
OrgTechHandle:  CNA23-ARIN
OrgTechHandle:  ORACL1-ARIN
OrgAbuseHandle: CNA23-ARIN
OrgAbuseHandle: NISAM-ARIN
Source:         ARIN





OrgAdminHandle:       ORACL-ARIN
OrgAdminName:          OracleDNS
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        CNA23-ARIN
OrgTechName:           Corporate Network Admin
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ORACL1-ARIN
OrgTechName:           ORACLE NIS
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       CNA23-ARIN
OrgAbuseName:          Corporate Network Admin
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       NISAM-ARIN
OrgAbuseName:          Network Information Systems Abuse Management
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           CNA23-ARIN
TechName:              Corporate Network Admin
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:26:51Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-lumen-customers-asns	10695