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If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	103.124.72.0/22	National Applied Research Laboratories
	103.160.220.0/24	National Applied Research Laboratories National Cente...
	140.110.0.0/16	Ministry of Education Computer Center
	140.110.200.0/21	Ministry of Education Computer Center
	140.110.215.0/24	Ministry of Education Computer Center
	203.145.200.0/21	National Applied Research Laboratories
	203.145.208.0/20	National Applied Research Laboratories
	211.73.64.0/19	National Center for High-Performance Computing
	211.79.48.0/20	National Center for High-performance Computing
	2001:e10::/32	Taiwan Advanced Research and Education

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS9924	Taiwan Fixed Network, Telco and Network Service Provider.	✔	✔
	AS6461	Zayo Bandwidth	✔	✔
	AS6939	Hurricane Electric LLC	✘	✔
	AS18423	RAID Networks Co., Ltd.	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS6461	Zayo Bandwidth	✔	✔
	AS9924	Taiwan Fixed Network, Telco and Network Service Provider.	✔	✔
	AS18183	National Center for Research on Earthquake Engineering	✔	✘
	AS1659	Taiwan Academic Network (TANet) Information Center	✔	✘
	AS6939	Hurricane Electric LLC	✔	✔
	AS18426	National Applied Research Laboratories	✔	✘
	AS9264	Academia Sinica	✔	✔
	AS18181	National Health Research Institutes	✔	✘
	AS17717	Ministry of Education Computer Center Taipei, Taiwan	✔	✔
	AS137409	GSL Networks Pty LTD	✔	✔
	AS11537	Internet2	✔	✔
	AS6509	CANARIE Inc	✔	✔
	AS2153	CENIC	✔	✘
	AS18423	RAID Networks Co., Ltd.	✔	✘
	AS1103	SURF B.V.	✔	✔
	AS18422	Industrial Technology Research Institute	✔	✔
	AS7575	Australian Academic and Research Network (AARNet)	✔	✘
	AS215172	JIANYUELAB LTD	✔	✔
	AS134823	Sky Digital Co., Ltd.	✔	✔
	AS213605	Liu HaoRan	✔	✔
	AS17716	National Taiwan University	✔	✘
	AS293	ESnet	✔	✔
	AS18047	National Tsing-Hua University	✔	✘
	AS101	University of Washington	✔	✘
	AS17408	AboveNet Communications Taiwan	✔	✔
	AS18041	Taiwan Digital Streaming Co.	✔	✔
	AS18420	National Central University	✔	✘
	AS24482	SG.GS	✔	✔
	AS152615	Chummy Technology Ltd.	✔	✔
	AS131149	Yuan-Jhen Info., Co., Ltd	✔	✔
	AS3462	HiNet (Chunghwa Telecom)	✔	✔
	AS150767	Shi Ji Industrial Co., Ltd.	✔	✔
	AS4637	Telstra International Limited	✔	✔
	AS52025	ParadoxNetworks Limited	✔	✔
	AS17711	National Dong Hwa University	✔	✘
	AS44324	MoeDove LLC	✔	✔
	AS2907	Science Information Network	✔	✘
	AS14537	Continent 8 LLC	✔	✔
	AS7713	PT Telkom Indonesia Tbk	✔	✘
	AS18040	Aoter Networks Co., Ltd	✔	✔
	AS131645	KLICKKLACK CO., LTD.	✔	✘
	AS150771	FUYU Group Inc.	✔	✘
	AS15169	Google LLC	✔	✘
	AS38254	Internet Technology Laboratory	✔	✔
	AS215248	Bastiaan Mathijs Brink	✔	✔
	AS13335	Cloudflare, Inc.	✔	✘
	AS154185	Liu HaoRan	✘	✔
	AS207529	NYANLOLI LTD	✘	✔
	AS150289	Sun Yanzheng	✘	✔
	AS140096	JINX CO., LIMITED	✔	✘
	AS18043	Department of Education, Hsinchu City	✔	✘
	AS10099	China Unicom Global	✘	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS18183	National Center for Research on Earthquake Engineering	✔	✘
	AS1659	Taiwan Academic Network (TANet) Information Center	✔	✘
	AS18426	National Applied Research Laboratories	✔	✘
	AS18181	National Health Research Institutes	✔	✘

aut-num:        AS7539
as-name:        TWAREN-TW
descr:          National Center for High-performance Computing
descr:          HsinChu Taiwan 300
country:        TW
import:         from AS7539 action pref=10; accept ANY
import:         from AS1659 action pref=100; accept ANY
import:         from AS9264 action pref=100; accept ANY
import:         from AS145 action pref=100; accept ANY
import:         from AS7610 action pref=100; accept ANY
import:         from AS11537 action pref=100; accept ANY
import:         from AS293 action pref=100; accept ANY
import:         from AS10764 action pref=100; accept ANY
export:         to AS7539 announce AS7539
export:         to AS1659 announce AS7539
export:         to AS9264 announce AS7539
export:         to AS145 announce AS7539
export:         to AS7610 announce AS7539
export:         to AS11537 announce AS7539
export:         to AS293 announce AS7539
export:         to AS10764 announce AS7539
default:        to AS7539 action pref=100; networks ANY
admin-c:        nNA6-AP
tech-c:         nNA6-AP
abuse-c:        AT939-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-NCHC-TW
last-modified:  2025-11-06T09:06:40Z
source:         APNIC

Last Update: 2026-05-08T03:22:25Z UTC

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Member of the following AS-SETs

-	Member
ALTDB	as-tpix
RADB	as18424:as-peers
APNIC	as9264:as-partner-a
APNIC	as18414:as-fox-l3ix
RADB	as-startapme
RADB	as-hurricanev6
RIPE	as207468:as-tw
RIPE	as-transroute-spec
RADB	as-startapla
RADB	as-tpix
RIPE	as-retn-actual-v6
APNIC	as7539:as-twaren
RADB	as-twig
RADB	as-tpix-2003
RADB	as-startapru
RIPE	as20965:as-from-tein-to-geant
NTTCOM	as-asnet
NTTCOM	as-tfn-transit1
RADB	as-tfn-transit1
ARIN	as293:as-from-singaren-to-esnet
RADB	as-startapca
RADB	as7575:as-research
RADB	as-startapeu
RADB	as-startapcn
RADB	as-startapna
RADB	as-pnw-gigapop-peers
RIPE	as3303:as-swcmpeers
APNIC	as-63529-as-import-as9505
APNIC	as63529:as-63529-as-import-as9505