Network topology

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

AS572

Currently announcedSnapshot awaiting refresh

Greater Baltimore Medical Center Inc · GBMC-TOW

Last observed9/29/2026, 06:37:33Open ASN profile →

AS572 relationship topology

Showing 3 / 3

AS572Greater Baltimore Medic…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS33657CMCS - Comcast Cable Communications, LLC

Relationship: Upstream
Observed weight: 265
ASN registration country: United States
Latest RIS data: 9/28/2026, 00:00:00

Open AS33657 profile →

All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS33657Observed weight 265	CMCS - Comcast Cable Communications, LLC	Upstream	United States	8/19/2019, 00:00:00	9/28/2026, 00:00:00	703
AS17054Observed weight 262	EXPEDIENT - Expedient	Upstream	United States	8/19/2019, 00:00:00	9/28/2026, 00:00:00	331
AS701Observed weight 229	UUNET - Verizon Business	Upstream	United States	8/19/2019, 00:00:00	9/28/2026, 00:00:00	297

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