Network topology

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

AS4528

Currently announcedSnapshot awaiting refresh

The University of Hong Kong · HKU-AS-HK

Last observed9/29/2026, 11:44:12Open ASN profile →

AS4528 relationship topology

Showing 2 / 2

AS4528The University of Hong …

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3662HARNET - Joint Universities Computer Centre Limited

Relationship: Upstream
Observed weight: 470
ASN registration country: Hong Kong SAR China
Latest RIS data: 11/2/2026, 00:00:00

Open AS3662 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
AS3662Observed weight 470	HARNET - Joint Universities Computer Centre Limited	Upstream	Hong Kong SAR China	8/19/2019, 00:00:00	11/2/2026, 00:00:00	2,214	698
AS137207Observed weight 18	JUCC-AS-AP - Joint Universities Computer Centre Limited	Upstream	Hong Kong SAR China	8/19/2019, 00:00:00	11/2/2026, 00:00:00	106	22

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