asn.dev

Routing security

AS131151 NCTAIWAN-AS nctaiwan.co.ltd

Unclassified APNIC

RPKI valid 100% 16 of 16 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 11 authorising this AS

Announcements

What this network originates

16 observed

Every prefix observed with AS131151 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
103.123.132.0/22RPKI validIRR54
103.123.132.0/24RPKI validIRR22
103.123.133.0/24RPKI validIRR22
103.137.22.0/23RPKI validIRR54
103.137.22.0/24RPKI validIRR22
103.137.23.0/24RPKI validIRR22
103.158.228.0/23RPKI validIRR54
103.158.228.0/24RPKI validIRR43
103.208.196.0/24RPKI validIRR22
103.246.219.0/24RPKI validIRR22
123.253.140.0/23RPKI validIRR54
123.253.140.0/24RPKI validIRR22
123.253.141.0/24RPKI validIRR22
187.79.248.0/21RPKI validIRR55
187.79.248.0/23RPKI validIRR covering55
187.79.249.0/24RPKI validIRR covering22

RPKI · ROAs

Route origin authorisations

11 ROAs

Signed statements by address holders that AS131151 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
103.123.132.0/22/24APNIC
103.137.22.0/23/24APNIC
103.158.228.0/23/24APNIC
103.208.196.0/24/24APNIC
103.246.218.0/23/24APNIC
123.253.140.0/23/24APNIC
144.48.34.0/24/24APNIC
187.79.192.0/19/24APNIC
187.79.248.0/21/24APNIC
187.79.248.0/24/24APNIC
193.42.42.0/23/24RIPENCC

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

17 objects · 3 not announced

Route objects naming AS131151 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
144.48.34.0/24APNICIMCLOUD TECHNOLOGY COMPANY LIMITEDMAINT-IMCLOUD-HK2026-04-24Not announced
144.48.34.0/24RADBCustomer Route - LOA provided (IMCLOUD-37389)MAINT-AS1348232026-04-25Not announced
193.42.42.0/23RADBCustomer Route - LOA providedMAINT-AS1348232026-01-16Not announced
103.123.132.0/22RADBCustomer Route - LOA providedMAINT-AS1348232026-01-16Announced
103.123.132.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-05-11Announced
103.123.133.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-05-11Announced
103.137.22.0/23RADBCustomer Route - LOA providedMAINT-AS1348232026-01-16Announced
103.137.22.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-05-11Announced
103.137.23.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-05-11Announced
103.158.228.0/23RADBCustomer Route - LOA providedMAINT-AS1348232026-01-16Announced
103.158.228.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-05-11Announced
103.208.196.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-01-16Announced
103.246.219.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-01-16Announced
123.253.140.0/23RADBCustomer Route - LOA providedMAINT-AS1348232026-01-16Announced
123.253.140.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-05-11Announced
123.253.141.0/24RADBCustomer Route - LOA providedMAINT-AS1348232026-05-11Announced
187.79.248.0/21RADBCustomer Route - LOA provided (IMCLOUD-38150)MAINT-AS1348232026-05-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS131151 directly show who expects to carry it.

AS-setWhereRelationship
AS-HINETRADBLists AS131151 as a direct member
AS-HYTRONRADBLists AS131151 as a direct member
AS-MISAKA-CUSTOMERS2RIPELists AS131151 as a direct member
AS13335:AS-CUSTOMERSARINLists AS131151 as a direct member
AS134823:AS-IPTRADBLists AS131151 as a direct member
AS17433:AS-HYTRONAPNICLists AS131151 as a direct member
AS17433:AS-HYTRONRADBLists AS131151 as a direct member
AS202662:AS-HYTRONRIPELists AS131151 as a direct member
AS58453:AS-ASIAASCUSTAPNICLists AS131151 as a direct member
AS58453:AS-ASIAASCUSTRADBLists AS131151 as a direct member
AS917:AS-CUSTOMERSARINLists AS131151 as a direct member

RPKI from rpki-client, validated 2026-10-31 12:02 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-31. Cross-check on bgp.he.net.