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
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% |
| 2a0e:aa06:49e::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 635 100% |
| 2a0e:aa06:490::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 634 100% |
| 2a0e:aa06:491::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 634 100% |
| 2a0e:aa06:492::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 634 100% |
| 2a0e:aa06:493::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 634 100% |
| 2a0e:aa06:494::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 634 100% |
| 2a0e:aa06:495::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 634 100% |
| 2a0e:aa06:496::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 634 100% |
| 2a0e:aa06:497::/48 | Valid | Nonecovered by 2a0e:aa06:490::/44 | 634 100% |
| 2a0e:aa06:490::/44 | Valid | RIR databaseRIPE | 634 100% |
| 2404:f4c0:f000::/44 | Valid | RIR databaseAPNIC | 197 31% |
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.
| Name | Database | ASNs | Sets | AS24239 in it | Not covered |
|---|---|---|---|---|---|
| AS209300:AS-CUSTOMERS | RIPE | 6 | 2 | 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
| Change | Prefix or set | Detail |
|---|---|---|
| Route object: none | 2a0c:b641:571::/48 | No 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. |
| Route object: none | 2a0e:aa06:49e::/48 | No 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. |
| Route object: none | 2a0e:aa06:490::/48 | No 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. |
| Route object: none | 2a0e:aa06:491::/48 | No 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. |
| Route object: none | 2a0e:aa06:492::/48 | No 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. |
| Route object: none | 2a0e:aa06:493::/48 | No 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. |
| Route object: none | 2a0e:aa06:494::/48 | No 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. |
| Route object: none | 2a0e:aa06:495::/48 | No 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. |
| Route object: none | 2a0e:aa06:496::/48 | No 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. |
| Route object: none | 2a0e:aa06:497::/48 | No 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. |
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).
| 44.30.120.0/24 | RADB | No ROA |
| 114.29.224.0/19 | NTTCOM | No ROA |
| 114.29.224.0/20 | NTTCOM, RADB | No ROA |
| 114.29.224.0/21 | NTTCOM, RADB | No ROA |
| 114.29.228.0/22 | NTTCOM, RADB | No ROA |
| 114.29.228.0/23 | NTTCOM, RADB | No ROA |
| 114.29.230.0/23 | NTTCOM, RADB | No ROA |
| 114.29.232.0/21 | NTTCOM, RADB | No ROA |
| 114.29.236.0/22 | NTTCOM, RADB | No ROA |
| 114.29.236.0/23 | NTTCOM, RADB | No ROA |
| 114.29.238.0/23 | NTTCOM, RADB | No ROA |
| 114.29.240.0/20 | NTTCOM, RADB | No ROA |
| 114.29.240.0/21 | NTTCOM, RADB | No ROA |
| 114.29.248.0/21 | NTTCOM, RADB | No ROA |
| 114.29.252.0/22 | NTTCOM, RADB | No ROA |
| 114.29.252.0/23 | NTTCOM, RADB | No ROA |
| 114.29.254.0/23 | NTTCOM, RADB | No ROA |
| 202.47.96.0/21 | RADB | No ROA |
| 202.47.96.0/22 | RADB | No ROA |
| 202.47.96.0/23 | RADB | No ROA |
| 202.47.96.0/24 | RADB | No ROA |
| 202.47.97.0/24 | RADB | No ROA |
| 202.47.98.0/23 | RADB | No ROA |
| 202.47.98.0/24 | RADB | No ROA |
| 202.47.99.0/24 | RADB | No ROA |
| 202.47.100.0/22 | RADB | No ROA |
| 202.47.100.0/23 | RADB | No ROA |
| 202.47.100.0/24 | RADB | No ROA |
| 202.47.101.0/24 | RADB | No ROA |
| 202.47.102.0/23 | RADB | No ROA |
| 202.47.102.0/24 | RADB | No ROA |
| 202.47.103.0/24 | RADB | No ROA |
| 202.71.32.0/20 | NTTCOM | No ROA |
| 202.71.32.0/21 | NTTCOM, RADB | No ROA |
| 202.71.32.0/22 | NTTCOM, RADB | No ROA |
| 202.71.32.0/23 | NTTCOM, RADB | No ROA |
| 202.71.32.0/24 | NTTCOM, RADB | No ROA |
| 202.71.33.0/24 | NTTCOM | No ROA |
| 202.71.34.0/23 | NTTCOM, RADB | No ROA |
| 202.71.34.0/24 | NTTCOM | No ROA |
| 202.71.35.0/24 | NTTCOM, RADB | No ROA |
| 202.71.36.0/22 | NTTCOM, RADB | No ROA |
| 202.71.36.0/23 | NTTCOM, RADB | No ROA |
| 202.71.36.0/24 | NTTCOM, RADB | No ROA |
| 202.71.37.0/24 | NTTCOM | No ROA |
| 202.71.38.0/23 | NTTCOM, RADB | No ROA |
| 202.71.38.0/24 | NTTCOM | No ROA |
| 202.71.39.0/24 | NTTCOM | No ROA |
| 202.71.40.0/21 | NTTCOM, RADB | No ROA |
| 202.71.40.0/22 | NTTCOM, RADB | No ROA |
| 202.71.40.0/23 | NTTCOM, RADB | No ROA |
| 202.71.40.0/24 | NTTCOM | No ROA |
| 202.71.41.0/24 | NTTCOM, RADB | No ROA |
| 202.71.42.0/23 | NTTCOM, RADB | No ROA |
| 202.71.42.0/24 | NTTCOM, RADB | No ROA |
| 202.71.43.0/24 | NTTCOM, RADB | No ROA |
| 202.71.44.0/22 | NTTCOM, RADB | No ROA |
| 202.71.44.0/23 | NTTCOM, RADB | No ROA |
| 202.71.44.0/24 | NTTCOM | No ROA |
| 202.71.45.0/24 | NTTCOM | No ROA |
| 202.71.46.0/23 | NTTCOM, RADB | No ROA |
| 202.71.46.0/24 | NTTCOM | No ROA |
| 202.71.47.0/24 | NTTCOM | No ROA |
| 2404:f4c0:f000::/45 | APNIC | Valid |
| 2404:f4c0:f000::/46 | APNIC | Valid |
| 2404:f4c0:f000::/47 | APNIC | Valid |
| 2404:f4c0:f000::/48 | APNIC | Valid |
| 2404:f4c0:f001::/48 | APNIC | Valid |
| 2404:f4c0:f002::/47 | APNIC | Valid |
| 2404:f4c0:f002::/48 | APNIC | Valid |
| 2404:f4c0:f003::/48 | APNIC | Valid |
| 2404:f4c0:f004::/46 | APNIC | Valid |
| 2404:f4c0:f004::/47 | APNIC | Valid |
| 2404:f4c0:f004::/48 | APNIC | Valid |
| 2404:f4c0:f005::/48 | APNIC | Valid |
| 2404:f4c0:f006::/47 | APNIC | Valid |
| 2404:f4c0:f006::/48 | APNIC | Valid |
| 2404:f4c0:f007::/48 | APNIC | Valid |
| 2404:f4c0:f008::/45 | APNIC | Valid |
| 2404:f4c0:f008::/46 | APNIC | Valid |
| 2404:f4c0:f008::/47 | APNIC | Valid |
| 2404:f4c0:f008::/48 | APNIC | Valid |
| 2404:f4c0:f009::/48 | APNIC | Valid |
| 2404:f4c0:f00a::/47 | APNIC | Valid |
| 2404:f4c0:f00a::/48 | APNIC | Valid |
| 2404:f4c0:f00b::/48 | APNIC | Valid |
| 2404:f4c0:f00c::/46 | APNIC | Valid |
| 2404:f4c0:f00c::/47 | APNIC | Valid |
| 2404:f4c0:f00c::/48 | APNIC | Valid |
| 2404:f4c0:f00d::/48 | APNIC | Valid |
| 2404:f4c0:f00e::/47 | APNIC | Valid |
| 2404:f4c0:f00e::/48 | APNIC | Valid |
| 2404:f4c0:f00f::/48 | APNIC | Valid |
| 2a05:1085::/32 | RIPE | Valid |
| 2a0c:b641:570::/44 | RIPE | Valid |
| 2a0e:b107:740::/44 | RIPE | Invalid: 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.