Network · data from 2026-11-12

AS33820 REED-ELSEVIER-AS RELX GROUP PLC

Registry name: REED-ELSEVIER-AS RELX GROUP PLC, GB · 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

0Route objects not announced registered with origin AS33820, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS33820, 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.


145.36.0.0/20	Valid	RIR databaseRADB, RIPE	673 100%	67
145.36.16.0/20	Valid	RIR databaseRADB, RIPE	673 100%	68
145.36.32.0/20	Valid	RIR databaseRADB, RIPE	673 100%	68
145.36.48.0/24	Valid	RIR databaseRADB, RIPE	673 100%	69
145.36.49.0/24	Valid	RIR databaseRADB, RIPE	673 100%	69
145.36.50.0/24	Valid	RIR databaseRADB, RIPE	673 100%	66
145.36.51.0/24	Valid	RIR databaseRADB, RIPE	673 100%	66
145.36.52.0/24	Valid	RIR databaseRADB, RIPE	673 100%	67
145.36.53.0/24	Valid	RIR databaseRADB, RIPE	673 100%	66
145.36.54.0/24	Valid	RIR databaseRADB, RIPE	673 100%	68
145.36.55.0/24	Valid	RIR databaseRADB, RIPE	673 100%	68
145.36.56.0/24	Valid	RIR databaseRADB, RIPE	673 100%	67
145.36.57.0/24	Valid	RIR databaseRADB, RIPE	673 100%	67
145.36.58.0/24	Valid	RIR databaseRADB, RIPE	673 100%	67
198.176.121.0/24	Valid	RIR databaseARIN, RADB	673 100%	67
198.176.123.0/24	Valid	RIR databaseARIN, RADB	673 100%	68
198.176.124.0/24	Valid	RIR databaseARIN, RADB	673 100%	66
198.176.126.0/24	Valid	RIR databaseARIN, RADB	673 100%	66
145.36.59.0/24	Valid	RIR databaseRADB, RIPE	672 100%	67

AS-SET

AS33820 isn't in PeeringDB, where networks name their AS-SET.

Fix list

Nothing to change: every route is RPKI valid with a route object in an RIR database, and every route object is announced.

Route objects not announced

Every route object with origin AS33820 is announced.

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.