Routing security
AS56821 KNVNET1-AS
Unclassified APNIC
Announcements
What this network originates
Every prefix observed with AS56821 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a02:4007::/32 | RPKI valid | IRR | 30 |
| 2a14:9880::/32 | RPKI valid | IRR | 30 |
| 89.239.24.0/21 | RPKI valid | IRR | 53 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS56821 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 89.239.24.0/21 | /21 | RIPENCC |
| 2a02:4007::/32 | /32 | RIPENCC |
| 2a14:9880::/32 | /32 | RIPENCC |
ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.
RPKI · ASPA
Declared transit providers
This network has signed an ASPA record naming its transit providers. Each is compared against the upstreams observed in routing paths.
| AS | Network | ASPA | Routing paths |
|---|---|---|---|
| AS16019 | Vodafone Czech Republic a.s. | Declared | Observed |
An observed upstream that is not declared is not necessarily a leak: our upstream inference cannot tell a transit provider from a peer seen in the same position. A declared provider that is never observed is usually a backup path.
IRR
Registered route objects
Route objects naming AS56821 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 89.239.24.0/21 | RIPE | — | MNT-GREPA | 2018-09-18 | Announced |
| 2a02:4007::/32 | RIPE | — | MNT-GREPA | 2018-09-18 | Announced |
| 2a14:9880::/32 | RIPE | — | LIR-CZ-KNVNET1-1-MNT | 2025-02-26 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS56821 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-SET-GREPA | RIPE | Lists AS56821 as a direct member |
AS-STARNETCZ | RIPE | Lists AS56821 as a direct member |
AS-STARNETSRO | RIPE | Lists AS56821 as a direct member |
AS44489:AS-SET-STARNET | RIPE | Lists AS56821 as a direct member |
AS56821:AS-KNVNET | RIPE | Lists AS56821 as a direct member |
RPKI from rpki-client, validated 2026-10-16 12:09 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-16. Cross-check on bgp.he.net.