Network topology

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

AS17638

Currently announcedSnapshot awaiting refresh

CHINATELECOM-TJ-AS-AP - ASN for TIANJIN Provincial Net of CT · CHINATELECOM-TJ-AS-AP

Last observed10/8/2026, 00:34:57Open ASN profile →

AS17638 relationship topology

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AS17638ASN for TIANJIN Provinc…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS4134CHINANET-BACKBONE

Relationship: Upstream
Observed weight: 621
ASN registration country: China
Latest RIS data: 10/22/2026, 00:00:00

Open AS4134 profile →

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS4134Observed weight 621	CHINANET-BACKBONE	Upstream	China	8/19/2019, 00:00:00	10/22/2026, 00:00:00	89,219	3,686
AS132536Observed weight 236	China Telecom	Downstream	China	8/19/2019, 00:00:00	10/22/2026, 00:00:00	3,358	636

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