Network · data from 2026-11-12
AS131958 Tama Cable Network
Registry name: t-net - Tama Cable Network Co.,Ltd., JP · PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS131958, 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.
| 133.226.176.0/21 | Valid | Other IRR onlyJPIRR | 673 100% |
| 202.233.72.0/22 | Valid | Other IRR onlyJPIRR | 673 100% |
| 103.144.122.0/23 | Valid | Other IRR onlyJPIRR | 672 100% |
| 133.32.192.0/21 | Valid | Other IRR onlyJPIRR | 672 100% |
| 133.238.64.0/18 | Valid | Other IRR onlyJPIRR, RADB | 672 100% |
| 157.14.64.0/20 | Valid | Other IRR onlyJPIRR | 672 100% |
| 2405:6cc0::/32 | Valid | Other IRR onlyJPIRR | 634 100% |
AS-SET
PeeringDB's irr_as_set for AS131958: AS131958. 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 (AS131958 isn't in the set, or no route object for AS131958 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 | AS131958 in it | Not covered | |
|---|---|---|---|---|---|---|
| AS131958 | A single AS number, not a set: AS131958 (this network), 11 route objects. | |||||
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 11 are in fix.csv.
- Route object: RIR7
- Route object: not announced4
| Change | Prefix or set | Detail |
|---|---|---|
| Route object: RIR | 133.226.176.0/21 | Route object only in JPIRR. Add it in the RIR database for the space. |
| Route object: RIR | 202.233.72.0/22 | Route object only in JPIRR. Add it in the RIR database for the space. |
| Route object: RIR | 103.144.122.0/23 | Route object only in JPIRR. Add it in the RIR database for the space. |
| Route object: RIR | 133.32.192.0/21 | Route object only in JPIRR. Add it in the RIR database for the space. |
| Route object: RIR | 133.238.64.0/18 | Route object only in JPIRR, RADB. Add it in the RIR database for the space. |
| Route object: RIR | 157.14.64.0/20 | Route object only in JPIRR. Add it in the RIR database for the space. |
| Route object: RIR | 2405:6cc0::/32 | Route object only in JPIRR. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS131958 whose prefix no peer sees AS131958 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 103.144.122.0/24 | JPIRR | Valid |
| 103.144.123.0/24 | JPIRR | Valid |
| 133.32.196.0/23 | JPIRR | Valid |
| 133.32.198.0/23 | JPIRR | Valid |
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.