asn.dev

Routing security

AS7539 TWAREN-TW National Center for High-performance Computing

Education APNIC Educational/Research

RPKI valid 93% 14 of 15 announcements
RPKI invalid 1 dropped by validating networks
No ROA 0 not covered by any ROA
IRR registered 93% 1 missing · 0 other origin
ROAs 11 authorising this AS

Announcements

What this network originates

15 observed

Every prefix observed with AS7539 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
120.101.64.0/22RPKI invalidNo IRR2
103.124.72.0/22RPKI validIRR55
103.124.72.0/24RPKI validIRR covering7
103.124.73.0/24RPKI validIRR covering7
103.160.220.0/23RPKI validIRR7
140.110.0.0/16RPKI validIRR55
140.110.200.0/21RPKI validIRR52
140.110.215.0/24RPKI validIRR51
203.145.200.0/21RPKI validIRR54
203.145.208.0/20RPKI validIRR55
211.73.64.0/19RPKI validIRR55
211.73.68.0/23RPKI validIRR covering7
211.73.72.0/24RPKI validIRR covering7
211.79.48.0/20RPKI validIRR55
2001:e10::/32RPKI validIRR35

RPKI · ROAs

Route origin authorisations

11 ROAs

Signed statements by address holders that AS7539 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
103.124.72.0/22/24APNIC
103.160.220.0/23/24APNIC
140.110.0.0/16/24APNIC
203.145.200.0/21/24APNIC
203.145.208.0/20/24APNIC
210.200.32.0/20/24APNIC
211.73.64.0/19/24APNIC
211.79.48.0/20/24APNIC
2001:c58::/32/64APNIC
2001:e10::/32/64APNIC
2001:4500:1000::/40/64APNIC

ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.

RPKI · ASPA

Declared transit providers

No ASPA record This network has not published an ASPA object. ASPA lets a network sign the list of its transit providers, so routers can reject paths that route through anyone else (route leaks). Only a few thousand networks publish one so far, so its absence is normal.

IRR

Registered route objects

12 objects · 1 not announced

Route objects naming AS7539 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.

PrefixSourceDescriptionMaintainerChangedRouting
2001:4500:1000::/40APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-06Not announced
103.124.72.0/22APNICTaiwan Network Information CenterMAINT-TW-TWNIC2020-08-27Announced
103.160.220.0/23APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-10-26Announced
140.110.0.0/16APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-03Announced
140.110.200.0/21APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-06Announced
140.110.215.0/24APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-06Announced
203.145.200.0/21APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-06Announced
203.145.208.0/20APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-06Announced
211.73.64.0/19APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-06Announced
211.79.48.0/20APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-06Announced
2001:e10::/32APNICTaiwan Network Information CenterMAINT-TW-TWNIC2023-11-03Announced
2001:e10::/32RADBTWGate Customer RouteMAINT-AS95052023-11-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS7539 directly show who expects to carry it.

AS-setWhereRelationship
AS7539:AS-TWARENPeeringDBDeclared by the operator as its own set
AS-63529-AS-IMPORT-AS9505APNICLists AS7539 as a direct member
AS-ASNETNTTCOMLists AS7539 as a direct member
AS-HURRICANEV6RADBLists AS7539 as a direct member
AS-PNW-GIGAPOP-PEERSRADBLists AS7539 as a direct member
AS-RETN-ACTUAL-V6RIPELists AS7539 as a direct member
AS-STARTAPCARADBLists AS7539 as a direct member
AS-STARTAPCNRADBLists AS7539 as a direct member
AS-STARTAPEURADBLists AS7539 as a direct member
AS-STARTAPLARADBLists AS7539 as a direct member
AS-STARTAPMERADBLists AS7539 as a direct member
AS-STARTAPNARADBLists AS7539 as a direct member
AS-STARTAPRURADBLists AS7539 as a direct member
AS-TFN-TRANSIT1NTTCOMLists AS7539 as a direct member
AS-TFN-TRANSIT1RADBLists AS7539 as a direct member
AS-TPIXALTDBLists AS7539 as a direct member
AS-TPIXRADBLists AS7539 as a direct member
AS-TPIX-2003RADBLists AS7539 as a direct member
AS-TRANSROUTE-SPECRIPELists AS7539 as a direct member
AS-TWIGRADBLists AS7539 as a direct member
AS18414:AS-FOX-L3IXAPNICLists AS7539 as a direct member
AS18424:AS-PEERSRADBLists AS7539 as a direct member
AS207468:AS-TWRIPELists AS7539 as a direct member
AS20965:AS-FROM-TEIN-TO-GEANTRIPELists AS7539 as a direct member
AS293:AS-FROM-SINGAREN-TO-ESNETARINLists AS7539 as a direct member
AS3303:AS-SWCMPEERSRIPELists AS7539 as a direct member
AS63529:AS-63529-AS-IMPORT-AS9505APNICLists AS7539 as a direct member
AS7539:AS-TWARENAPNICLists AS7539 as a direct member
AS7575:AS-RESEARCHRADBLists AS7539 as a direct member
AS9264:AS-PARTNER-AAPNICLists AS7539 as a direct member

RPKI from rpki-client, validated 2026-10-13 12:16 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-13. Cross-check on bgp.he.net.