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	Prefix	Description
	203.145.192.0/21	National Applied Research Laboratories

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS7539	National Center for High-performance Computing	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS7539	National Center for High-performance Computing	✔	✘
	AS18183	National Center for Research on Earthquake Engineering	✔	✘

aut-num:        AS18426
as-name:        STPI-AS-TW
descr:          National Applied Research Laboratories
descr:          3F, No. 106, Ho-Ping E. Road, Sec. 2 Taipei 106, Taiwan , ROC
descr:          Taipei Taiwan 106
country:        TW
import:         from AS1659 action pref=100; accept ANY
import:         from AS3462 action pref=100; accept ANY
import:         from AS4782 action pref=100; accept ANY
import:         from AS7539 action pref=100; accept ANY
export:         to AS1659 announce AS18426
export:         to AS3462 announce AS18426
export:         to AS4782 announce AS18426
export:         to AS7539 announce AS18426
admin-c:        nNA6-AP
tech-c:         nNA6-AP
abuse-c:        AT939-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-NARL-TW
last-modified:  2025-11-06T09:26:25Z
source:         APNIC

Last Update: 2026-02-18T03:22:27Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-twig	2141
RADB	as-ebix-transit	73
APNIC	as63529:as-63529-as-import-as9505	155
LEVEL3	as-level3-origins-na	0
RADB	as-above-as-ap	21
APNIC	as58453:as-asiaascust	31886
APNIC	as7539:as-twaren	14
RADB	as58453:as-asiaascust	31886
APNIC	as-63529-as-import-as9505	378
RADB	as18183:as-cone	2
RADB	as-chief-transit	24736
LEVEL3	as-level3-origins-eu	0
RIPE	as-transroute-spec	19660
RADB	as-tpix	84513
APNIC	as9264:as-partner-a	10