bgpreport

Network · data from 2026-11-12

AS51939 TerraMCUK

Registry name: TerraMC Terra Management Consulting Ltd, GB · PeeringDB

0IPv4 routes
13IPv6 routes 100.0% RPKI valid · 100.0% with a route object
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
13Route objects not announced registered with origin AS51939, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS51939, 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.

2602:f96d:f25::/48 Valid RIR databaseARIN 636 100% 67
2a0e:97c0:5c2::/48 Valid RIR databaseRIPE 636 100% 69
2a0e:97c0:5ce::/48 Valid RIR databaseRIPE 636 100% 70
2602:f96d:f22::/48 Valid RIR databaseARIN 635 100% 69
2a0e:97c0:5c1::/48 Valid RIR databaseRIPE 635 100% 67
2a0e:97c0:5c3::/48 Valid RIR databaseRIPE 635 100% 67
2a0e:97c0:5c4::/48 Valid RIR databaseRIPE 635 100% 69
2a0e:97c0:5c6::/48 Valid RIR databaseRADB, RIPE 635 100% 67
2a0e:97c0:5cc::/48 Valid RIR databaseRIPE 635 100% 67
2a0e:97c0:5ca::/48 Valid RIR databaseRIPE 634 100% 69
2a0e:97c0:5c0::/44 Valid RIR databaseRIPE 631 99% 69
2a0e:97c0:5c0::/48 Valid RIR databaseRIPE 631 99% 69
2a0e:97c0:5c7::/48 Valid RIR databaseRIPE 631 99% 69

AS-SET

PeeringDB's irr_as_set for AS51939: AS51939:AS-TERRAMCUK. Expanded from the day's IRR dumps the way bgpq4 does against whois.radb.net: a name with a database is read from that database only, one without from the first database in RADB's order. "Not covered" = this network's own routes that a filter built from the set would leave out (AS51939 isn't in the set, or no route object for AS51939 covers the route; more-specifics of a route object are accepted down to /24 and /48, as with bgpq4 -A -R 24 / -R 48). Customers' routes aren't counted: the collectors show each route's origin, not which network it came through.

NameDatabaseASNsSets Route objectsAS51939 in itNot covered
AS51939:AS-TERRAMCUK RIPE 1126 Yes 0

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 13 are in fix.csv.

  • Route object: not announced13

Route objects not announced

Route objects with origin AS51939 whose prefix no peer sees AS51939 announce. Many are kept on purpose (backup routes, space announced only in some places).

2602:f96d:f20::/44ARINValid
2602:f96d:f20::/48ARINValid
2602:f96d:f21::/48ARINValid
2602:f96d:f23::/48ARINValid
2602:f96d:f24::/48ARINValid
2602:f96d:f2a::/48ARINValid
2602:f96d:f2b::/48ARINValid
2a0e:97c0:5c5::/48RIPEValid
2a0e:97c0:5c8::/48RIPEValid
2a0e:97c0:5c9::/48RADB, RIPEValid
2a0e:97c0:5cb::/48RADB, RIPEValid
2a0e:97c0:5cd::/48RIPEValid
2a0e:97c0:5cf::/48RIPEValid

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.