Network topology

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

AS4158

Currently announcedSnapshot awaiting refresh

City University of Hong Kong · CITYUNI-AS-AP

Last observed10/19/2026, 18:50:25Open ASN profile →

AS4158 relationship topology

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AS4158City University of Hong…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3662HARNET - Joint Universities Computer Centre Limited

Relationship: Upstream
Observed weight: 491
ASN registration country: Hong Kong SAR China
Latest RIS data: 10/19/2026, 00:00:00

Open AS3662 profile →

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS3662Observed weight 491	HARNET - Joint Universities Computer Centre Limited	Upstream	Hong Kong SAR China	8/19/2019, 00:00:00	10/19/2026, 00:00:00	2,541	353
AS137207Observed weight 15	JUCC-AS-AP - Joint Universities Computer Centre Limited	Upstream	Hong Kong SAR China	8/19/2019, 00:00:00	10/19/2026, 00:00:00	133	11

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