Network topology

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

AS25808

Currently announcedSnapshot awaiting refresh

CONCORD-MA - Town of Concord MA · CONCORD-MA

Last observed10/21/2026, 11:21:25Open ASN profile →

AS25808 relationship topology

Showing 3 / 3

AS25808Town of Concord MA

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS54004LIGHTPATH - Cablevision Lightpath LLC

Relationship: Upstream
Observed weight: 303
ASN registration country: United States
Latest RIS data: 10/21/2026, 00:00:00

Open AS54004 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS54004Observed weight 303	LIGHTPATH - Cablevision Lightpath LLC	Upstream	United States	8/21/2019, 00:00:00	10/21/2026, 00:00:00	1,549
AS174Observed weight 98	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/21/2019, 00:00:00	10/21/2026, 00:00:00	616
AS46887Observed weight 51	CROWNCASTLE-AS46887 - Crown Castle Fiber LLC	Upstream	United States	8/21/2019, 00:00:00	10/21/2026, 00:00:00	294

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