Network topology

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

AS18140

Currently announcedSnapshot awaiting refresh

YAHOO-18140

Last observed9/30/2026, 21:47:46Open ASN profile →

AS18140 relationship topology

Showing 1 / 1

AS18140YAHOO-18140

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS23816YAHOO - LY Corporation

Relationship: Upstream
Observed weight: 270
ASN registration country: Japan
Latest RIS data: 10/14/2026, 00:00:00

Open AS23816 profile →

All adjacent autonomous systems

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

1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS23816Observed weight 270	YAHOO - LY Corporation	Upstream	Japan	8/19/2019, 00:00:00	10/14/2026, 00:00:00	335	0

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