Network topology

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

AS397489

Currently announcedSnapshot awaiting refresh

Matthews Book Company · MATTHEWS-209

Last observed10/28/2026, 12:32:36Open ASN profile →

AS397489 relationship topology

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AS397489Matthews Book Company

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS22677CHARTER-22677-MO-IL-C3 - Charter Communications LLC

Relationship: Upstream
Observed weight: 158
ASN registration country: United States
Latest RIS data: 10/28/2026, 00:00:00

Open AS22677 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	Visible prefixes	Collectors
AS22677Observed weight 158	CHARTER-22677-MO-IL-C3 - Charter Communications LLC	Upstream	United States	9/15/2019, 00:00:00	10/28/2026, 00:00:00	1	1
AS7018Observed weight 118	ATT-INTERNET4 - AT&T Enterprises, LLC	Upstream	United States	9/15/2019, 00:00:00	10/28/2026, 00:00:00	1	1

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