Network topology

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

AS23639

Currently announcedSnapshot awaiting refresh

ntt-bizlink

Last observed10/1/2026, 13:07:53Open ASN profile →

AS23639 relationship topology

Showing 2 / 2

AS23639ntt-bizlink

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS2497IIJ - Internet Initiative Japan Inc.

Relationship: Upstream
Observed weight: 275
ASN registration country: Japan
Latest RIS data: 11/6/2026, 00:00:00

Open AS2497 profile →

All adjacent autonomous systems

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

2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS2497Observed weight 275	IIJ - Internet Initiative Japan Inc.	Upstream	Japan	8/21/2019, 00:00:00	11/6/2026, 00:00:00	3,601	161
AS10010Observed weight 141	TOKAI - TOKAI Communications Corporation	Upstream	Japan	8/21/2019, 00:00:00	11/6/2026, 00:00:00	684	197

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