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	Prefix	Description
	42.0.200.0/24	LocalArea Communication of LangFang LTD. CO.
	101.135.33.0/24	21ViaNet(China),Inc.
	122.113.50.0/24	Shenzhen Ping An Communication Technology Co.,Ltd
	139.183.100.0/24	Shanghai DMT Information Network cor.,LTD.
	210.78.100.0/24	Beijing Volcano Engine Technology Co., Ltd.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS45250	Vocom International Telecommunications AP Area	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS45250	Vocom International Telecommunications AP Area	✔	✘

aut-num:        AS138449
as-name:        SYUNET-AS-AP
descr:          SIANG YU SCIENCE AND TECHNOLOGY LIMITED
descr:          Flat B, 6/F., Teda Building, 87 Wing Lok Street, Sheung Wan,Hong
country:        HK
org:            ORG-SYSA2-AP
sponsoring-org: ORG-VITI1-AP
admin-c:        VITI1-AP
tech-c:         VITI1-AP
abuse-c:        AV303-AP
mnt-routes:     MAINT-HK-BOGAO
mnt-by:         APNIC-HM
mnt-irt:        IRT-VITNET-AP
last-modified:  2023-09-05T03:50:13Z
source:         APNIC


organisation:   ORG-SYSA2-AP
org-name:       SIANG YU SCIENCE AND TECHNOLOGY LIMITED
org-type:       OTHER
address:        ********
country:        US
phone:          ********
# Email removed, Log into bgp.tools to see whois emails
admin-c:        VITI1-AP
tech-c:         VITI1-AP
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T03:50:12Z
source:         APNIC

Last Update: 2026-03-13T03:22:30Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-twig	2018
RADB	as58453:as-asiaascust	31402
RADB	as-seednet	280
RADB	as-azuretech	90
APNIC	as58453:as-asiaascust	31402
APNIC	as58453:as-asiatest	27772
RADB	as136491:as-cmi	34
RADB	as-10099	866
APNIC	as63529:as-63529-as-import-as9505	155
RADB	as-hgc-intl	6956
RADB	as-hurricane	24681
RADB	as45250:as-smlcn2	4
RIPE	as-transroute-spec	19641
APNIC	as-63529-as-import-as9505	378
RADB	as53587:as-cone	89
APNIC	as45250:as-smlcn2	4