Network topology

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

AS18244

Not announcedSnapshot awaiting refresh

STIDC

Last observed10/8/2026, 03:49:42Open ASN profile →

AS18244 relationship topology

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AS18244STIDC

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS17621CNCGROUP-SH - China Unicom Shanghai network

Relationship: Upstream
Observed weight: 3
ASN registration country: China
Latest RIS data: 11/10/2026, 00:00:00

Open AS17621 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
AS17621Observed weight 3	CNCGROUP-SH - China Unicom Shanghai network	Upstream	China	8/28/2019, 00:00:00	11/10/2026, 00:00:00	32	2

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