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Network · data from 2026-11-12

AS16477 NCL-203-16477 - Nielsen Consumer LLC

Registry name: NCL-203-16477 - Nielsen Consumer LLC, US · not in PeeringDB

21IPv4 routes 0.0% RPKI valid · 95.2% with a route object
0IPv6 routes
0RPKI invalid 0 origin · 0 maxLength
21No ROA 1 with no route object for this origin
0Low visibility seen by under 10% of full-table peers
59Route objects not announced registered with origin AS16477, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS16477, 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.

138.108.138.0/24 No ROA Nonecovered by 138.108.0.0/16 671 100% 68
138.108.80.0/24 No ROA Other IRR onlyRADB 673 100% 67
138.108.81.0/24 No ROA Other IRR onlyRADB 673 100% 67
138.108.82.0/24 No ROA Other IRR onlyRADB 673 100% 67
138.108.96.0/21 No ROA Other IRR onlyRADB 673 100% 67
138.108.115.0/24 No ROA Other IRR onlyRADB 673 100% 67
138.108.136.0/24 No ROA Other IRR onlyRADB 673 100% 68
138.108.140.0/22 No ROA Other IRR onlyALTDB, RADB, RIPE-NONAUTH 673 100% 67
138.108.152.0/24 No ROA Other IRR onlyRADB 673 100% 67
138.108.154.0/24 No ROA Other IRR onlyRADB 673 100% 67
138.108.155.0/24 No ROA Other IRR onlyRADB 673 100% 67
138.108.157.0/24 No ROA Other IRR onlyRADB 673 100% 67
138.108.32.0/24 No ROA Other IRR onlyRADB 672 100% 67
138.108.36.0/24 No ROA Other IRR onlyRADB 672 100% 67
138.108.137.0/24 No ROA Other IRR onlyRADB, RIPE-NONAUTH 672 100% 67
138.108.3.0/24 No ROA Other IRR onlyRADB 671 100% 67
138.108.104.0/23 No ROA Other IRR onlyALTDB, RADB, RIPE-NONAUTH 671 100% 67
138.108.106.0/23 No ROA Other IRR onlyRIPE-NONAUTH 671 100% 67
138.108.144.0/24 No ROA Other IRR onlyNTTCOM, RADB 671 100% 67
138.108.150.0/24 No ROA Other IRR onlyRADB 671 100% 67
138.108.162.0/24 No ROA Other IRR onlyRADB 670 100% 67

AS-SET

AS16477 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 101 are in fix.csv.

  • ROA: none21
  • Route object: none1
  • Route object: RIR20
  • Route object: not announced59
ChangePrefix or setDetailFull-table peers
ROA: none138.108.138.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.671 of 673
Route object: none138.108.138.0/24No route object for it. A route object for 138.108.0.0/16 with origin AS16477 covers it (filters allowing more-specifics accept it). Add a route object with origin AS16477 in the RIR database for the space.671 of 673
ROA: none138.108.80.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.80.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.81.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.81.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.82.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.82.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.96.0/21No ROA covers it. Add a ROA for AS16477, maxLength 21.673 of 673
Route object: RIR138.108.96.0/21Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.115.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.115.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.136.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.136.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.140.0/22No ROA covers it. Add a ROA for AS16477, maxLength 22.673 of 673
Route object: RIR138.108.140.0/22Route object only in ALTDB, RADB, RIPE-NONAUTH. Add it in the RIR database for the space.673 of 673
ROA: none138.108.152.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.152.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.154.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.154.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.155.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.155.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.157.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.673 of 673
Route object: RIR138.108.157.0/24Route object only in RADB. Add it in the RIR database for the space.673 of 673
ROA: none138.108.32.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.672 of 673
Route object: RIR138.108.32.0/24Route object only in RADB. Add it in the RIR database for the space.672 of 673
ROA: none138.108.36.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.672 of 673
Route object: RIR138.108.36.0/24Route object only in RADB. Add it in the RIR database for the space.672 of 673
ROA: none138.108.137.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.672 of 673
Route object: RIR138.108.137.0/24Route object only in RADB, RIPE-NONAUTH. Add it in the RIR database for the space.672 of 673
ROA: none138.108.3.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.671 of 673
Route object: RIR138.108.3.0/24Route object only in RADB. Add it in the RIR database for the space.671 of 673
ROA: none138.108.104.0/23No ROA covers it. Add a ROA for AS16477, maxLength 23.671 of 673
Route object: RIR138.108.104.0/23Route object only in ALTDB, RADB, RIPE-NONAUTH. Add it in the RIR database for the space.671 of 673
ROA: none138.108.106.0/23No ROA covers it. Add a ROA for AS16477, maxLength 23.671 of 673
Route object: RIR138.108.106.0/23Route object only in RIPE-NONAUTH. Add it in the RIR database for the space.671 of 673
ROA: none138.108.144.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.671 of 673
Route object: RIR138.108.144.0/24Route object only in NTTCOM, RADB. Add it in the RIR database for the space.671 of 673
ROA: none138.108.150.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.671 of 673
Route object: RIR138.108.150.0/24Route object only in RADB. Add it in the RIR database for the space.671 of 673
ROA: none138.108.162.0/24No ROA covers it. Add a ROA for AS16477, maxLength 24.670 of 673
Route object: RIR138.108.162.0/24Route object only in RADB. Add it in the RIR database for the space.670 of 673

Route objects not announced

Route objects with origin AS16477 whose prefix no peer sees AS16477 announce. Many are kept on purpose (backup routes, space announced only in some places).

1.232.49.0/24RADBNo ROA
12.107.122.0/23RADBNo ROA
62.189.21.0/24RIPENo ROA
121.162.175.0/24RADBNo ROA
138.108.0.0/16RADBNo ROA
138.108.1.0/24RADBNo ROA
138.108.13.0/24RADBNo ROA
138.108.16.0/21RADBNo ROA
138.108.32.0/23RADBNo ROA
138.108.33.0/24RADBNo ROA
138.108.38.0/24RADBNo ROA
138.108.39.0/24RADBNo ROA
138.108.45.0/24RADBNo ROA
138.108.46.0/24RADBNo ROA
138.108.48.0/23RIPE-NONAUTHNo ROA
138.108.50.0/24RADBNo ROA
138.108.51.0/24RADBNo ROA
138.108.54.0/24RADBNo ROA
138.108.63.0/24RADBNo ROA
138.108.83.0/24RADBNo ROA
138.108.94.0/24RADB, RIPE-NONAUTHNo ROA
138.108.97.0/24RIPE-NONAUTHNo ROA
138.108.98.0/24RIPE-NONAUTHNo ROA
138.108.100.0/24RIPE-NONAUTHNo ROA
138.108.103.0/24RIPE-NONAUTHNo ROA
138.108.106.0/24RADBNo ROA
138.108.110.0/24RADB, RIPE-NONAUTHNo ROA
138.108.111.0/24RIPE-NONAUTHNo ROA
138.108.113.0/24RADB, RIPE-NONAUTHNo ROA
138.108.114.0/24RIPE-NONAUTHNo ROA
138.108.116.0/24RADBNo ROA
138.108.124.0/24RADB, RIPE-NONAUTHNo ROA
138.108.128.0/24RADBNo ROA
138.108.129.0/24RADBNo ROA
138.108.132.0/24RADBNo ROA
138.108.135.0/24RADBNo ROA
138.108.140.0/24RIPE-NONAUTHNo ROA
138.108.141.0/24RIPE-NONAUTHNo ROA
138.108.142.0/24RIPE-NONAUTHNo ROA
138.108.143.0/24RIPE-NONAUTHNo ROA
138.108.148.0/24NTTCOM, RIPE-NONAUTHNo ROA
138.108.163.0/24RADBNo ROA
138.108.170.0/24RADBNo ROA
203.11.170.0/24RADBNo ROA
203.11.171.0/24RADBNo ROA
203.11.172.0/24RADBNo ROA
203.11.173.0/24RADBNo ROA
203.11.174.0/24RADBNo ROA
206.51.8.0/24RADBNo ROA
206.51.9.0/24RADBNo ROA
206.51.9.0/25RADBNo ROA
206.51.10.0/24RADBNo ROA
206.51.11.0/24RADBNo ROA
206.51.12.0/24RADBNo ROA
206.51.13.0/24RADBNo ROA
206.51.14.0/24RADBNo ROA
206.51.15.0/24RADBNo ROA
2620:130:9000::/48RADBNo ROA
2620:130:9001::/48RADBNo 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.