bgpreport

Network · data from 2026-11-12

AS21054 UK-NATWEST-AS21054 Natwest Markets PLC

Registry name: UK-NATWEST-AS21054 Natwest Markets PLC, GB · not in PeeringDB

15IPv4 routes 0.0% RPKI valid · 86.7% with a route object
0IPv6 routes
0RPKI invalid 0 origin · 0 maxLength
15No ROA 2 with no route object for this origin
2Low visibility seen by under 10% of full-table peers
13Route objects not announced registered with origin AS21054, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS21054, 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.
155.136.0.0/17 No ROA Nonecovered by 155.136.0.0/16 672 100% 67
155.136.128.0/17 No ROA Nonecovered by 155.136.0.0/16 672 100% 67
155.136.60.0/24 No ROA Other IRR onlyRADB 672 100% 67
155.136.61.0/24 No ROA Other IRR onlyRADB 672 100% 67
155.136.62.0/24 No ROA Other IRR onlyRADB 672 100% 67
155.136.63.0/24 No ROA Other IRR onlyRADB 672 100% 67
155.136.202.0/24 No ROA Other IRR onlyRADB 672 100% 67
155.136.203.0/24 No ROA Other IRR onlyRADB 672 100% 67
155.136.60.0/22 No ROA RIR databaseRIPE 672 100% 67
155.136.197.0/24 No ROA RIR databaseRADB, RIPE 672 100% 67
155.136.200.0/23 No ROA RIR databaseRIPE 290 43% 58
155.136.0.0/16 No ROA RIR databaseRADB, RIPE 275 41% 55
155.136.202.0/23 No ROA RIR databaseRADB, RIPE 266 40% 59
155.136.144.0/24 No ROA RIR databaseRADB, RIPE 17 3%low visibility 10
155.136.146.0/24 No ROA RIR databaseRADB, RIPE 17 3%low visibility 10

AS-SET

AS21054 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 36 are in fix.csv.

  • ROA: none15
  • Route object: none2
  • Route object: RIR6
  • Route object: not announced13
ChangePrefix or setDetailFull-table peers
ROA: none155.136.0.0/17No ROA covers it. Add a ROA for AS21054, maxLength 17.672 of 673
Route object: none155.136.0.0/17No route object for it. A route object for 155.136.0.0/16 with origin AS21054 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21054 in the RIR database for the space.672 of 673
ROA: none155.136.128.0/17No ROA covers it. Add a ROA for AS21054, maxLength 17.672 of 673
Route object: none155.136.128.0/17No route object for it. A route object for 155.136.0.0/16 with origin AS21054 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21054 in the RIR database for the space.672 of 673
ROA: none155.136.60.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.672 of 673
Route object: RIR155.136.60.0/24Route object only in RADB. Add it in the RIR database for the space.672 of 673
ROA: none155.136.61.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.672 of 673
Route object: RIR155.136.61.0/24Route object only in RADB. Add it in the RIR database for the space.672 of 673
ROA: none155.136.62.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.672 of 673
Route object: RIR155.136.62.0/24Route object only in RADB. Add it in the RIR database for the space.672 of 673
ROA: none155.136.63.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.672 of 673
Route object: RIR155.136.63.0/24Route object only in RADB. Add it in the RIR database for the space.672 of 673
ROA: none155.136.202.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.672 of 673
Route object: RIR155.136.202.0/24Route object only in RADB. Add it in the RIR database for the space.672 of 673
ROA: none155.136.203.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.672 of 673
Route object: RIR155.136.203.0/24Route object only in RADB. Add it in the RIR database for the space.672 of 673
ROA: none155.136.60.0/22No ROA covers it. Add a ROA for AS21054, maxLength 22.672 of 673
ROA: none155.136.197.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.672 of 673
ROA: none155.136.200.0/23No ROA covers it. Add a ROA for AS21054, maxLength 23.290 of 673
ROA: none155.136.0.0/16No ROA covers it. Add a ROA for AS21054, maxLength 16.275 of 673
ROA: none155.136.202.0/23No ROA covers it. Add a ROA for AS21054, maxLength 23.266 of 673
ROA: none155.136.144.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.17 of 673
ROA: none155.136.146.0/24No ROA covers it. Add a ROA for AS21054, maxLength 24.17 of 673

Route objects not announced

Route objects with origin AS21054 whose prefix no peer sees AS21054 announce. Many are kept on purpose (backup routes, space announced only in some places).

155.136.12.0/24RIPENo ROA
155.136.13.0/24RIPENo ROA
155.136.56.0/22RIPENo ROA
155.136.56.0/24RADBNo ROA
155.136.57.0/24RADBNo ROA
155.136.58.0/24RADBNo ROA
155.136.59.0/24RADBNo ROA
155.136.87.0/24RIPENo ROA
155.136.151.0/24RADB, RIPENo ROA
155.136.152.0/22RIPENo ROA
155.136.184.0/24RIPENo ROA
155.136.200.0/24RADBNo ROA
155.136.201.0/24RADBNo 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.