Network topology

Relationships come from RIS AS_PATH observations; direction represents path position, not a commercial contract or traffic direction.

AS35988

Currently announcedSnapshot awaiting refresh

UMASS-MEMORIAL-HEALTH-CARE - Umass Memorial health care inc · UMASS-MEMORIAL-HEALTH-CARE

Last observed10/23/2026, 12:16:51Open ASN profile →

AS35988 relationship topology

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AS35988Umass Memorial health c…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC

Relationship: Upstream
Observed weight: 151
ASN registration country: United States
Latest RIS data: 10/23/2026, 00:00:00

Open AS46887 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS46887Observed weight 151	CROWNCASTLE-AS46887 - Crown Castle Fiber LLC	Upstream	United States	8/21/2019, 00:00:00	10/23/2026, 00:00:00	510	0
AS20115Observed weight 337	CHARTER-20115 - Charter Communications LLC	Upstream	United States	8/21/2019, 00:00:00	10/16/2026, 00:00:00	740	0

CHA.LA ASN relationship snapshotRelationships are normalized by CHA.LA from collected routing observations and registration context.CHA.LA routing observations · registration context