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	Prefix	Description

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✔
	AS2914	NTT America, Inc.	✔	✘
	AS4637	Telstra International Limited	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS141735	Core Interconnection	✔	✔
	AS174	Cogent Communications, LLC	✔	✔
	AS2914	NTT America, Inc.	✔	✘
	AS6939	Hurricane Electric LLC	✔	✔
	AS4637	Telstra International Limited	✔	✘
	AS4635	HKIX Route Servers	✔	✔
	AS8359	MTS PJSC	✔	✔
	AS24482	SG.GS	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS140627	OneQode	✔	✘
	AS9293	NTT Com Asia Limited	✔	✘
	AS36236	NetActuate, Inc	✔	✔
	AS132337	Axclusive	✔	✘
	AS1239	Sprint Wireline (Cogent)	✔	✘
	AS39120	Convergenze S.p.A.	✔	✘

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Downstreams

	ASN	Description	IPv4	IPv6
	AS141735	Core Interconnection	✔	✔

aut-num:        AS141721
as-name:        ASTCL-AS-APASTCL-AS-AP
descr:          Asia Satellite Telecommunications Co. Ltd.
country:        HK
org:            ORG-ASTC2-AP
admin-c:        ASTC4-APASTC4-AP
tech-c:         ASTC4-APASTC4-AP
abuse-c:        AA2313-AP
mnt-lower:      MAINT-ASTCL-HK
mnt-routes:     MAINT-ASTCL-HK
mnt-by:         APNIC-HM
mnt-irt:        IRT-ASTCL-HK
last-modified:  2021-08-03T13:34:51Z
source:         APNIC


organisation:   ORG-ASTC2-AP
org-name:       Asia Satellite Telecommunications Co. Ltd.
org-type:       LIR
country:        HK
address:        ********
phone:          ********
# Email removed, Log into bgp.tools to see whois emails/phone numbers
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:25Z
source:         APNIC

Last Update: 2026-06-14T03:22:35Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-telstra-intl-customers	12432
APNIC	as141721:as-astcl	3
RADB	as-hutchcity	6959