Network · data from 2026-11-12
AS12303 .hu Domain Registry
Registry name: ISZT-AS Magyarorszagi Internet Szolgaltatok Tanacsa Tudomanyos Egyesulet, HU · PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS12303, 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.
| 5.28.0.0/22 | No ROA | RIR databaseRIPE | 667 99% |
| 2a00:e6a0::/40 | No ROA | RIR databaseRIPE | 635 100% |
AS-SET
PeeringDB's irr_as_set for AS12303: RIPE::AS-ISZT. 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 (AS12303 isn't in the set, or no route object for AS12303 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 | AS12303 in it | Not covered |
|---|---|---|---|---|---|
| RIPE::AS-ISZT | RIPE | 4 | 1 | 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 5 are in fix.csv.
- ROA: none2
- Route object: not announced3
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 5.28.0.0/22 | No ROA covers it. Add a ROA for AS12303, maxLength 22. |
| ROA: none | 2a00:e6a0::/40 | No ROA covers it. Add a ROA for AS12303, maxLength 40. |
Route objects not announced
Route objects with origin AS12303 whose prefix no peer sees AS12303 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 91.120.248.0/24 | RIPE | Invalid: origin |
| 2001:738:4::/48 | RIPE | Valid |
| 2a00:e6a0:3::/48 | RIPE | No 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.