asn.dev

Routing security

AS2500 WIDE-BB WIDE Project

Unclassified ARIN

RPKI valid 75% 3 of 4 announcements
RPKI invalid 0 none
No ROA 1 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 6 authorising this AS

Announcements

What this network originates

4 observed

Every prefix observed with AS2500 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
133.4.128.0/18No ROAIRR55
202.249.0.0/18RPKI validIRR55
203.178.128.0/17RPKI validIRR55
2001:200::/32RPKI validIRR30

RPKI · ROAs

Route origin authorisations

6 ROAs

Signed statements by address holders that AS2500 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
202.249.0.0/17/18APNIC
203.178.128.0/17/17APNIC
203.178.128.0/18/18APNIC
203.178.128.0/19/19APNIC
203.178.136.0/21/21APNIC
2001:200::/32/32APNIC

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

34 objects · 29 not announced

Route objects naming AS2500 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
133.4.64.0/18RADBWIDE ProjectMAINT-AS25002023-11-13Not announced
133.4.192.0/18RADBWIDE ProjectMAINT-AS25002023-11-13Not announced
133.12.0.0/16RADBSophia UniversityMAINT-AS25002023-11-13Not announced
133.27.0.0/16RADBKeio UniversityMAINT-AS25002023-11-13Not announced
133.139.0.0/16RADBRicoh Comapny LimitedMAINT-AS25002023-11-13Not announced
133.144.0.0/16RADBHitachi Ltd.MAINT-AS25002023-11-13Not announced
133.186.0.0/16RADBATR InternationalMAINT-AS25002023-11-13Not announced
133.227.0.0/16RADBJapan Information Processing ServiceMAINT-AS25002023-11-13Not announced
133.229.0.0/16RADBMitsubishi Electric Corp.MAINT-AS25002023-11-13Not announced
150.52.0.0/16RADBSanno UniversityMAINT-AS25002023-11-13Not announced
160.194.0.0/16RADBMeisei UniversityMAINT-AS25002023-11-13Not announced
163.215.0.0/16RADBTokyo Engineering UniversityMAINT-AS25002023-11-13Not announced
192.41.197.0/24RADBThe University of TokyoMAINT-AS25002023-11-13Not announced
192.50.36.0/24RADBWIDE San FranciscoMAINT-AS25002023-11-13Not announced
192.50.61.0/24RADBWIDE ProjectMAINT-AS25002023-11-13Not announced
192.51.41.0/24RADBFujitsu Ltd.MAINT-AS25002023-11-13Not announced
192.51.42.0/24RADBFujitsu Ltd.MAINT-AS25002023-11-13Not announced
192.218.128.0/22RADBNara Institute of Science and TechnologyMAINT-AS25002023-11-13Not announced
192.218.130.0/23RADBAdvanced Institute of Science and Technology, NaraMAINT-AS25002023-11-13Not announced
192.244.23.0/24RADBWIDE ProjectMAINT-AS25002023-11-13Not announced
202.17.180.0/24RADBInstitute of Electronics, Information and Communication EngineersMAINT-AS25002023-11-13Not announced
202.48.48.0/20RADBBunkyo UniversityMAINT-AS25002023-11-13Not announced
202.244.32.0/21RADBChiba University of CommerceMAINT-AS25002023-11-13Not announced
202.244.160.0/19RADBKurashiki University of Science and the ArtsMAINT-AS25002023-11-13Not announced
202.249.0.0/17RADBWIDE Project Aggregate for Customer PrefixesMAINT-AS25002023-11-13Not announced
203.178.128.0/19RADBWIDE Project Aggregate for Customer PrefixesMAINT-AS25002023-11-13Not announced
203.178.136.0/21RADBWIDE Project BackboneMAINT-AS25002023-11-13Not announced
2001:d30::/32NTTCOMproxy route6 registration by AS2914MAINT-NTTCOM-BB2010-06-11Not announced
2403:2000::/32NTTCOMproxy route6 registration by AS2914MAINT-NTTCOM-BB2010-06-11Not announced
133.4.128.0/18RADBWIDE ProjectMAINT-AS25002023-11-13Announced
202.249.0.0/18RADBWIDE Project Aggregate for Customer PrefixesMAINT-AS25002023-11-13Announced
203.178.128.0/17RADBWIDE Project Aggregate for Customer PrefixesMAINT-AS25002023-11-13Announced
2001:200::/32APNICWIDEMAINT-JP-WIDE2017-09-05Announced
2001:200::/32RADBWIDE ProjectMAINT-AS25002023-11-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS2500 directly show who expects to carry it.

AS-setWhereRelationship
AS-2500-2914RADBLists AS2500 as a direct member
AS-2500ARCSTARNTTCOMLists AS2500 as a direct member
AS-BBIX-TRADBLists AS2500 as a direct member
AS-BBIX-T-V6RADBLists AS2500 as a direct member
AS-IIJRADBLists AS2500 as a direct member
AS-IIJ6RADBLists AS2500 as a direct member
AS-IXP2NTTCOMLists AS2500 as a direct member
AS-NSPIXP2RADBLists AS2500 as a direct member
AS-RIS-RRC06RIPELists AS2500 as a direct member
AS-WIDERADBLists AS2500 as a direct member
AS-WIDE-V6RADBLists AS2500 as a direct member
AS20965:AS-FROM-TEIN-TO-GEANTRIPELists AS2500 as a direct member
AS2497:AS-IIJRADBLists AS2500 as a direct member
AS2497:AS-IIJ6RADBLists AS2500 as a direct member
AS2500:AS-TRANSITRADBLists AS2500 as a direct member
AS2914:AS-64600-V6NTTCOMLists AS2500 as a direct member
AS293:AS-FROM-SINGAREN-TO-ESNETARINLists AS2500 as a direct member
AS30071:AS-TBONEALTDBLists AS2500 as a direct member
AS7575:AS-PEERRADBLists AS2500 as a direct member

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