Network topology

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

AS151397

Currently announcedSnapshot awaiting refresh

CT-eSurfingCloud-CDN - China Telecom · CT-eSurfingCloud-CDN

Last observed11/5/2026, 12:09:52Open ASN profile →

AS151397 relationship topology

Showing 5 / 5

AS151397China Telecom

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS21859ZEN-ECN - Zenlayer Inc

Relationship: Upstream
Observed weight: 1,520
ASN registration country: United States
Latest RIS data: 11/5/2026, 00:00:00

Open AS21859 profile →

All adjacent autonomous systems

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5 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS21859Observed weight 1,520	ZEN-ECN - Zenlayer Inc	Upstream	United States	8/28/2019, 00:00:00	11/5/2026, 00:00:00	3,095	1,064
AS138915Observed weight 1,034	KAOPU-HK - Kaopu Cloud HK Limited	Upstream	Hong Kong SAR China	8/28/2019, 00:00:00	11/5/2026, 00:00:00	1,454	183
AS9886Observed weight 410	CTCSCITECHLIMITED-AS-AP - CTCSCI TECH LIMITED	Upstream	Hong Kong SAR China	8/28/2019, 00:00:00	11/5/2026, 00:00:00	720	47
AS23764Observed weight 404	CTGNet - CTGNet	Upstream	Hong Kong SAR China	8/28/2019, 00:00:00	11/5/2026, 00:00:00	392	350
AS63199Observed weight 292	CDSC-AS1 - CDS Global Cloud Co., Ltd	Upstream	United States	8/28/2019, 00:00:00	11/5/2026, 00:00:00	774	57

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