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	Prefix	Description
	198.89.64.0/24	Steward Health Care System LLC
	198.89.65.0/24	Steward Health Care System LLC
	198.89.66.0/24	Steward Health Care System LLC
	198.89.67.0/24	Steward Health Care System LLC
	198.89.68.0/24	Steward Health Care System LLC
	198.89.69.0/24	Steward Health Care System LLC
	198.89.70.0/24	Steward Health Care System LLC
	198.89.71.0/24	Steward Health Care System LLC
	198.89.72.0/24	Steward Health Care System LLC
	198.89.73.0/24	Steward Health Care System LLC
	198.89.74.0/24	Steward Health Care System LLC
	198.89.75.0/24	Steward Health Care System LLC
	198.89.77.0/24	Steward Health Care System LLC
	198.89.78.0/24	Steward Health Care System LLC
	198.89.79.0/24	Steward Health Care System LLC
	198.89.83.0/24	Steward Health Care System LLC
	198.212.151.0/24	Steward Health Care System LLC
	204.58.2.0/23	St. Luke's Health System

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS7015	Comcast Cable Communications, LLC	✔	✘
	AS46887	Zayo Bandwidth	✔	✘
	AS17378	TierPoint, LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS7015	Comcast Cable Communications, LLC	✔	✘
	AS46887	Zayo Bandwidth	✔	✘
	AS17378	TierPoint, LLC	✔	✘

ASHandle:       AS396151
OrgID:          SHCSL
ASName:         STEWARDHEALTHCARE
ASNumber:       396151
RegDate:        2017-03-21
Updated:        2024-05-30
Source:         ARIN



OrgID:          SHCSL
OrgName:        Steward Health Care System LLC
CanAllocate:    
Street:         2120 Dorchester Ave
City:           Dorchester
State/Prov:     MA
Country:        US
PostalCode:     02124
RegDate:        2015-01-05
Updated:        2024-08-05
OrgAdminHandle: THOMP1256-ARIN
OrgTechHandle:  NORDO4-ARIN
OrgTechHandle:  NORDO6-ARIN
OrgTechHandle:  ROSSI127-ARIN
OrgTechHandle:  THOMP1256-ARIN
OrgAbuseHandle: NORDO4-ARIN
OrgAbuseHandle: NORDO6-ARIN
OrgAbuseHandle: ROSSI127-ARIN
OrgAbuseHandle: THOMP1256-ARIN
Source:         ARIN





OrgAdminHandle:       THOMP1256-ARIN
OrgAdminName:         Micheal Thompson
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NORDO4-ARIN
OrgTechName:          Joseph Nordone
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NORDO6-ARIN
OrgTechName:          Joe Nordone
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ROSSI127-ARIN
OrgTechName:          Brandon Rossi
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        THOMP1256-ARIN
OrgTechName:          Micheal Thompson
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       NORDO4-ARIN
OrgAbuseName:         Joseph Nordone
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       NORDO6-ARIN
OrgAbuseName:         Joe Nordone
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ROSSI127-ARIN
OrgAbuseName:         Brandon Rossi
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       THOMP1256-ARIN
OrgAbuseName:         Micheal Thompson
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-12T03:27:39Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-ccf-test	1461
RIPE	as-towardex-customers	382
RADB	as-ccf	1539
RADB	as-towardex-customers	382
RADB	as-comcast-edia	2774
LEVEL3	as-towardex-customers	382
ALTDB	as-towardex-customers	382
RADB	as-tp30496	36
ARIN	as-selco-customers	6