bgpreport

Network · data from 2026-11-12

AS23675 TSMCGDN-AS-AP - Taiwan Semiconductor Manufactoring Company, Ltd.

Registry name: TSMCGDN-AS-AP - Taiwan Semiconductor Manufactoring Company, Ltd., TW · not in PeeringDB

19IPv4 routes 100.0% RPKI valid · 100.0% with a route object
0IPv6 routes
0RPKI invalid 0 origin · 0 maxLength
0No ROA 0 with no route object for this origin
0Low visibility seen by under 10% of full-table peers
19Route objects not announced registered with origin AS23675, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS23675, 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.
202.126.64.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.65.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.66.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.67.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.68.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.69.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.70.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.71.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.72.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.73.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.74.0/24 Valid Other IRR onlyRADB 673 100% 70
202.126.75.0/24 Valid Other IRR onlyRADB 673 100% 70
203.66.100.0/24 Valid Other IRR onlyRADB 673 100% 70
203.66.101.0/24 Valid Other IRR onlyRADB 673 100% 70
203.66.102.0/24 Valid Other IRR onlyRADB 673 100% 70
203.66.245.0/24 Valid Other IRR onlyRADB 673 100% 70
220.128.55.0/24 Valid Other IRR onlyRADB 673 100% 70
106.105.110.0/24 Valid Other IRR onlyRADB 669 99% 67
208.70.204.0/24 Valid RIR databaseARIN 673 100% 70

AS-SET

AS23675 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 37 are in fix.csv.

  • Route object: RIR18
  • Route object: not announced19
ChangePrefix or setDetailFull-table peers
Route object: RIR202.126.64.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.65.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.66.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.67.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.68.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.69.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.70.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.71.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.72.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.73.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.74.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR202.126.75.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR203.66.100.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR203.66.101.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR203.66.102.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR203.66.245.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR220.128.55.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
Route object: RIR106.105.110.0/24Route object only in RADB. Add it in the RIR database for the space.669 of 673

Route objects not announced

Route objects with origin AS23675 whose prefix no peer sees AS23675 announce. Many are kept on purpose (backup routes, space announced only in some places).

202.126.64.0/20RADBValid
202.126.64.0/21RADBValid
202.126.64.0/22RADBValid
202.126.64.0/23RADBValid
202.126.66.0/23RADBValid
202.126.68.0/22RADBValid
202.126.68.0/23RADBValid
202.126.70.0/23RADBValid
202.126.72.0/21RADBValid
202.126.72.0/22RADBValid
202.126.72.0/23RADBValid
202.126.74.0/23RADBValid
202.126.76.0/22RADBValid
202.126.76.0/23RADBValid
202.126.76.0/24RADBValid
202.126.77.0/24RADBValid
202.126.78.0/23RADBValid
202.126.78.0/24RADBValid
202.126.79.0/24RADBValid

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.