Routing security
AS205901 JSOPN-AS woof-woof
Unclassified RIPE Educational/Research
Announcements
What this network originates
Every prefix observed with AS205901 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a12:bec4:1e10::/48 | RPKI valid | IRR | 30 |
| 2a12:bec4:1e11::/48 | RPKI valid | IRR | 30 |
| 193.23.203.0/24 | RPKI valid | IRR | 53 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS205901 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 193.23.203.0/24 | /24 | RIPENCC |
| 2a0d:d940:2001::/48 | /48 | RIPENCC |
| 2a12:bec4:1e10::/48 | /48 | RIPENCC |
| 2a12:bec4:1e11::/48 | /48 | RIPENCC |
| 2a12:bec4:1e12::/48 | /48 | 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 |
|---|---|---|---|
| AS58212 | dataforest GmbH | Declared | not observed |
| AS213520 | Senko Digital LLC | 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 AS205901 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 |
|---|---|---|---|---|---|
| 2a0d:d940:2001::/48 | RIPE | — | SCULK-FREEV6-MNT | 2025-09-12 | Not announced |
| 193.23.203.0/24 | RIPE | — | JSOPN-MNT | 2025-08-03 | Announced |
| 2a12:bec4:1e10::/48 | RIPE | — | JSOPN-MNT | 2025-11-23 | Announced |
| 2a12:bec4:1e11::/48 | RIPE | — | JSOPN-MNT | 2025-11-23 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS205901 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS205901:AS-JSOPN | PeeringDB | Declared by the operator as its own set |
AS-IFOG | ALTDB | Lists AS205901 as a direct member |
AS-IFOG | RIPE | Lists AS205901 as a direct member |
AS-PHPFRIENDS | RIPE | Lists AS205901 as a direct member |
AS205901:AS-JSOPN | RIPE | Lists AS205901 as a direct member |
AS213520:AS-SENKO | RIPE | Lists AS205901 as a direct member |
AS34872:AS-DOWNSTREAM-NL | ALTDB | Lists AS205901 as a direct member |
RPKI from rpki-client, validated 2026-10-28 12:15 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-28. Cross-check on bgp.he.net.