Routing security
AS59747 NIX-DR
Unclassified RIPE
Announcements
What this network originates
Every prefix observed with AS59747 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2001:148f:fffc::/48 | RPKI valid | IRR | 30 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS59747 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 91.207.230.0/24 | /24 | RIPENCC |
| 91.207.231.0/24 | /24 | RIPENCC |
| 2001:148f:fffc::/48 | /48 | RIPENCC |
| 2a02:38:1111::/48 | /48 | RIPENCC |
| 2a02:39::/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 |
|---|---|---|---|
| AS5610 | O2 Czech Republic, a.s. | Declared | Observed |
| AS6855 | Slovak Telekom, a.s. | Declared | Observed |
| AS6881 | NIX.CZ z.s.p.o. | Declared | not observed |
| AS8251 | FreeTel, s.r.o. | Declared | Observed |
| AS6939 | Hurricane Electric LLC | not declared | Observed |
| AS8218 | Zayo Infrastructure France SA | not declared | Observed |
| AS24482 | SG.GS | not declared | Observed |
| AS29504 | Freenet Liberec, z.s. | not 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 AS59747 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 |
|---|---|---|---|---|---|
| 91.207.230.0/24 | RIPE | — | AS6881-MNT | 2022-03-04 | Not announced |
| 2a02:38:1111::/48 | RIPE | — | AS6881-MNT | 2022-03-04 | Not announced |
| 2001:148f:fffc::/48 | RIPE | SRVHOSTING | CZ-NIC-MNT | 2022-04-05 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS59747 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-CTIOL | RIPE | Lists AS59747 as a direct member |
AS-DIALTELECOMRO | RIPE | Lists AS59747 as a direct member |
AS6881:AS-NIX-DR | RIPE | Lists AS59747 as a direct member |
RPKI from rpki-client, validated 2026-10-13 12:16 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-13. Cross-check on bgp.he.net.