bgpreport

Network · data from 2026-11-12

AS131981 TAKUSHOKUNET - Takushoku University

Registry name: TAKUSHOKUNET - Takushoku University, JP · not in PeeringDB

6IPv4 routes 0.0% RPKI valid · 100.0% with a route object
0IPv6 routes
0RPKI invalid 0 origin · 0 maxLength
6No ROA 0 with no route object for this origin
0Low visibility seen by under 10% of full-table peers
1Route objects not announced registered with origin AS131981, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS131981, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
133.36.0.0/17 No ROA Other IRR onlyJPIRR, RADB 673 100% 67
133.36.128.0/17 No ROA Other IRR onlyJPIRR, RADB 673 100% 67
133.36.0.0/18 No ROA Other IRR onlyJPIRR, RADB 672 100% 69
133.36.64.0/18 No ROA Other IRR onlyJPIRR, RADB 672 100% 69
133.36.128.0/18 No ROA Other IRR onlyJPIRR, RADB 672 100% 69
133.36.192.0/18 No ROA Other IRR onlyJPIRR, RADB 672 100% 69

AS-SET

AS131981 isn't in PeeringDB, where networks name their AS-SET.

Fix list

The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 13 are in fix.csv.

  • ROA: none6
  • Route object: RIR6
  • Route object: not announced1
ChangePrefix or setDetailFull-table peers
ROA: none133.36.0.0/17No ROA covers it. Add a ROA for AS131981, maxLength 17.673 of 673
Route object: RIR133.36.0.0/17Route object only in JPIRR, RADB. Add it in the RIR database for the space.673 of 673
ROA: none133.36.128.0/17No ROA covers it. Add a ROA for AS131981, maxLength 17.673 of 673
Route object: RIR133.36.128.0/17Route object only in JPIRR, RADB. Add it in the RIR database for the space.673 of 673
ROA: none133.36.0.0/18No ROA covers it. Add a ROA for AS131981, maxLength 18.672 of 673
Route object: RIR133.36.0.0/18Route object only in JPIRR, RADB. Add it in the RIR database for the space.672 of 673
ROA: none133.36.64.0/18No ROA covers it. Add a ROA for AS131981, maxLength 18.672 of 673
Route object: RIR133.36.64.0/18Route object only in JPIRR, RADB. Add it in the RIR database for the space.672 of 673
ROA: none133.36.128.0/18No ROA covers it. Add a ROA for AS131981, maxLength 18.672 of 673
Route object: RIR133.36.128.0/18Route object only in JPIRR, RADB. Add it in the RIR database for the space.672 of 673
ROA: none133.36.192.0/18No ROA covers it. Add a ROA for AS131981, maxLength 18.672 of 673
Route object: RIR133.36.192.0/18Route object only in JPIRR, RADB. Add it in the RIR database for the space.672 of 673

Route objects not announced

Route objects with origin AS131981 whose prefix no peer sees AS131981 announce. Many are kept on purpose (backup routes, space announced only in some places).

133.36.0.0/16JPIRR, RADBNo ROA

Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.