Network topology

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

AS40457

Currently announcedSnapshot awaiting refresh

NASCAR Holdings, LLC · NASCAR-ASN

Last observed10/3/2026, 09:09:13Open ASN profile →

AS40457 relationship topology

Showing 2 / 2

AS40457NASCAR Holdings, LLC

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC

Relationship: Upstream
Observed weight: 274
ASN registration country: United States
Latest RIS data: 10/3/2026, 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 274	CROWNCASTLE-AS46887 - Crown Castle Fiber LLC	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	655	0
AS33363Observed weight 170	BHN-33363 - Charter Communications, Inc	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	400	0

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