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	Prefix	Description
	198.251.16.0/24	Northwest Community Hospital
	198.251.16.0/23	Northwest Community Hospital
	198.251.17.0/24	Northwest Community Hospital
	198.251.18.0/23	Northwest Community Hospital
	198.251.18.0/24	Northwest Community Hospital
	198.251.19.0/24	Northwest Community Hospital
	204.26.16.0/20	NorthShore University HealthSystem
	204.26.27.0/24	NorthShore University HealthSystem
	204.26.28.0/24	NorthShore University HealthSystem
	204.26.29.0/24	NorthShore University HealthSystem
	204.26.30.0/24	NorthShore University HealthSystem

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS33491	Comcast Cable Communications, LLC	✔	✘
	AS7018	AT&T Enterprises, LLC	✔	✘
	AS46887	Zayo Bandwidth	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS33491	Comcast Cable Communications, LLC	✔	✘
	AS46887	Zayo Bandwidth	✔	✘
	AS7018	AT&T Enterprises, LLC	✔	✘

ASHandle:       AS36319
OrgID:          ENHC
ASName:         ENWHC
ASNumber:       36319
RegDate:        2005-11-28
Updated:        2012-03-02
Source:         ARIN



OrgID:          ENHC
OrgName:        NorthShore University HealthSystem
CanAllocate:    
Street:         4901 Searle Parkway
City:           Skokie
State/Prov:     IL
Country:        US
PostalCode:     60076
RegDate:        2005-10-12
Updated:        2025-01-08
OrgAdminHandle: MSI141-ARIN
OrgTechHandle:  MSI141-ARIN
OrgTechHandle:  SMITH6239-ARIN
OrgAbuseHandle: MSI141-ARIN
OrgRoutingHandle:   SMITH6239-ARIN
Source:         ARIN





OrgAdminHandle:       MSI141-ARIN
OrgAdminName:         Mike Sinisi
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        MSI141-ARIN
OrgTechName:          Mike Sinisi
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        SMITH6239-ARIN
OrgTechName:          Daniel Smith
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       MSI141-ARIN
OrgAbuseName:         Mike Sinisi
# Email removed, Log into bgp.tools to see whois emails


OrgRoutingHandle:     SMITH6239-ARIN
OrgRoutingName:       Daniel Smith
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-10T03:38:13Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-comcast-edia	2774
RADB	as-ccf-test	1461
RADB	as-ccf	1537
LEVEL3	as-level3-origins-na	0