bgpreport

Network · data from 2026-11-12

AS204018 Cityfibre ENTANET International Limited

Registry name: Cityfibre ENTANET International Limited, GB · not in PeeringDB

1IPv4 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
21Route objects not announced registered with origin AS204018, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS204018, 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.

156.67.240.0/24 Valid RIR databaseRIPE 673 100% 67

AS-SET

AS204018 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 21 are in fix.csv.

  • Route object: not announced21

Route objects not announced

Route objects with origin AS204018 whose prefix no peer sees AS204018 announce. Many are kept on purpose (backup routes, space announced only in some places).

79.143.157.0/24RIPEInvalid: origin
156.67.242.0/24RIPEInvalid: origin
156.67.243.0/24RIPEInvalid: origin
156.67.244.0/24RIPEInvalid: origin
156.67.245.0/24RIPEInvalid: origin
156.67.246.0/24RIPEInvalid: origin
156.67.247.0/24RIPEInvalid: origin
156.67.248.0/24RIPEInvalid: origin
156.67.249.0/24RIPEInvalid: origin
156.67.250.0/24RIPEInvalid: origin
156.67.251.0/24RIPEInvalid: origin
156.67.252.0/24RIPEInvalid: origin
156.67.253.0/24RIPEInvalid: origin
156.67.254.0/24RIPEInvalid: origin
156.67.255.0/24RIPEInvalid: origin
185.129.72.0/24RIPEInvalid: origin
185.220.12.0/24RIPEInvalid: origin
185.220.14.0/24RIPEInvalid: origin
2a05:8945::/32RIPENo ROA
2a05:8946::/32RIPENo ROA
2a05:8947::/32RIPENo 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.