bgpreport

Network · data from 2026-11-12

AS24239 TWD2 Education and Research Network 2

Registry name: TWD2-NET-AS-AP - TWD2 Education and Research Network, CN · PeeringDB

0IPv4 routes
12IPv6 routes 100.0% RPKI valid · 16.7% with a route object
0RPKI invalid 0 origin · 0 maxLength
0No ROA 10 with no route object for this origin
0Low visibility seen by under 10% of full-table peers
96Route objects not announced registered with origin AS24239, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS24239, 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.

2a0c:b641:571::/48 Valid Nonecovered by 2a0c:b641:570::/44 635 100% 68
2a0e:aa06:49e::/48 Valid Nonecovered by 2a0e:aa06:490::/44 635 100% 68
2a0e:aa06:490::/48 Valid Nonecovered by 2a0e:aa06:490::/44 634 100% 69
2a0e:aa06:491::/48 Valid Nonecovered by 2a0e:aa06:490::/44 634 100% 69
2a0e:aa06:492::/48 Valid Nonecovered by 2a0e:aa06:490::/44 634 100% 69
2a0e:aa06:493::/48 Valid Nonecovered by 2a0e:aa06:490::/44 634 100% 69
2a0e:aa06:494::/48 Valid Nonecovered by 2a0e:aa06:490::/44 634 100% 69
2a0e:aa06:495::/48 Valid Nonecovered by 2a0e:aa06:490::/44 634 100% 69
2a0e:aa06:496::/48 Valid Nonecovered by 2a0e:aa06:490::/44 634 100% 69
2a0e:aa06:497::/48 Valid Nonecovered by 2a0e:aa06:490::/44 634 100% 69
2a0e:aa06:490::/44 Valid RIR databaseRIPE 634 100% 68
2404:f4c0:f000::/44 Valid RIR databaseAPNIC 197 31% 60

AS-SET

PeeringDB's irr_as_set for AS24239: AS209300:AS-CUSTOMERS. 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 (AS24239 isn't in the set, or no route object for AS24239 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 objectsAS24239 in itNot covered
AS209300:AS-CUSTOMERS RIPE 62182 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 106 are in fix.csv.

  • Route object: none10
  • Route object: not announced96
ChangePrefix or setDetailFull-table peers
Route object: none2a0c:b641:571::/48No route object for it. A route object for 2a0c:b641:570::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.635 of 636
Route object: none2a0e:aa06:49e::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.635 of 636
Route object: none2a0e:aa06:490::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.634 of 636
Route object: none2a0e:aa06:491::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.634 of 636
Route object: none2a0e:aa06:492::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.634 of 636
Route object: none2a0e:aa06:493::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.634 of 636
Route object: none2a0e:aa06:494::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.634 of 636
Route object: none2a0e:aa06:495::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.634 of 636
Route object: none2a0e:aa06:496::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.634 of 636
Route object: none2a0e:aa06:497::/48No route object for it. A route object for 2a0e:aa06:490::/44 with origin AS24239 covers it (filters allowing more-specifics accept it). Add a route object with origin AS24239 in the RIR database for the space.634 of 636

Route objects not announced

Route objects with origin AS24239 whose prefix no peer sees AS24239 announce. Many are kept on purpose (backup routes, space announced only in some places).

44.30.120.0/24RADBNo ROA
114.29.224.0/19NTTCOMNo ROA
114.29.224.0/20NTTCOM, RADBNo ROA
114.29.224.0/21NTTCOM, RADBNo ROA
114.29.228.0/22NTTCOM, RADBNo ROA
114.29.228.0/23NTTCOM, RADBNo ROA
114.29.230.0/23NTTCOM, RADBNo ROA
114.29.232.0/21NTTCOM, RADBNo ROA
114.29.236.0/22NTTCOM, RADBNo ROA
114.29.236.0/23NTTCOM, RADBNo ROA
114.29.238.0/23NTTCOM, RADBNo ROA
114.29.240.0/20NTTCOM, RADBNo ROA
114.29.240.0/21NTTCOM, RADBNo ROA
114.29.248.0/21NTTCOM, RADBNo ROA
114.29.252.0/22NTTCOM, RADBNo ROA
114.29.252.0/23NTTCOM, RADBNo ROA
114.29.254.0/23NTTCOM, RADBNo ROA
202.47.96.0/21RADBNo ROA
202.47.96.0/22RADBNo ROA
202.47.96.0/23RADBNo ROA
202.47.96.0/24RADBNo ROA
202.47.97.0/24RADBNo ROA
202.47.98.0/23RADBNo ROA
202.47.98.0/24RADBNo ROA
202.47.99.0/24RADBNo ROA
202.47.100.0/22RADBNo ROA
202.47.100.0/23RADBNo ROA
202.47.100.0/24RADBNo ROA
202.47.101.0/24RADBNo ROA
202.47.102.0/23RADBNo ROA
202.47.102.0/24RADBNo ROA
202.47.103.0/24RADBNo ROA
202.71.32.0/20NTTCOMNo ROA
202.71.32.0/21NTTCOM, RADBNo ROA
202.71.32.0/22NTTCOM, RADBNo ROA
202.71.32.0/23NTTCOM, RADBNo ROA
202.71.32.0/24NTTCOM, RADBNo ROA
202.71.33.0/24NTTCOMNo ROA
202.71.34.0/23NTTCOM, RADBNo ROA
202.71.34.0/24NTTCOMNo ROA
202.71.35.0/24NTTCOM, RADBNo ROA
202.71.36.0/22NTTCOM, RADBNo ROA
202.71.36.0/23NTTCOM, RADBNo ROA
202.71.36.0/24NTTCOM, RADBNo ROA
202.71.37.0/24NTTCOMNo ROA
202.71.38.0/23NTTCOM, RADBNo ROA
202.71.38.0/24NTTCOMNo ROA
202.71.39.0/24NTTCOMNo ROA
202.71.40.0/21NTTCOM, RADBNo ROA
202.71.40.0/22NTTCOM, RADBNo ROA
202.71.40.0/23NTTCOM, RADBNo ROA
202.71.40.0/24NTTCOMNo ROA
202.71.41.0/24NTTCOM, RADBNo ROA
202.71.42.0/23NTTCOM, RADBNo ROA
202.71.42.0/24NTTCOM, RADBNo ROA
202.71.43.0/24NTTCOM, RADBNo ROA
202.71.44.0/22NTTCOM, RADBNo ROA
202.71.44.0/23NTTCOM, RADBNo ROA
202.71.44.0/24NTTCOMNo ROA
202.71.45.0/24NTTCOMNo ROA
202.71.46.0/23NTTCOM, RADBNo ROA
202.71.46.0/24NTTCOMNo ROA
202.71.47.0/24NTTCOMNo ROA
2404:f4c0:f000::/45APNICValid
2404:f4c0:f000::/46APNICValid
2404:f4c0:f000::/47APNICValid
2404:f4c0:f000::/48APNICValid
2404:f4c0:f001::/48APNICValid
2404:f4c0:f002::/47APNICValid
2404:f4c0:f002::/48APNICValid
2404:f4c0:f003::/48APNICValid
2404:f4c0:f004::/46APNICValid
2404:f4c0:f004::/47APNICValid
2404:f4c0:f004::/48APNICValid
2404:f4c0:f005::/48APNICValid
2404:f4c0:f006::/47APNICValid
2404:f4c0:f006::/48APNICValid
2404:f4c0:f007::/48APNICValid
2404:f4c0:f008::/45APNICValid
2404:f4c0:f008::/46APNICValid
2404:f4c0:f008::/47APNICValid
2404:f4c0:f008::/48APNICValid
2404:f4c0:f009::/48APNICValid
2404:f4c0:f00a::/47APNICValid
2404:f4c0:f00a::/48APNICValid
2404:f4c0:f00b::/48APNICValid
2404:f4c0:f00c::/46APNICValid
2404:f4c0:f00c::/47APNICValid
2404:f4c0:f00c::/48APNICValid
2404:f4c0:f00d::/48APNICValid
2404:f4c0:f00e::/47APNICValid
2404:f4c0:f00e::/48APNICValid
2404:f4c0:f00f::/48APNICValid
2a05:1085::/32RIPEValid
2a0c:b641:570::/44RIPEValid
2a0e:b107:740::/44RIPEInvalid: origin

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.