Routing security
AS199476 SYNDICAT Niels Dettenbach
Unclassified RIPE
Announcements
What this network originates
Every prefix observed with AS199476 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a13:9d80::/48 | RPKI valid | IRR | 33 |
| 194.39.244.0/24 | RPKI valid | IRR | 55 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS199476 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 194.39.244.0/24 | /24 | RIPENCC |
| 2a13:9d80::/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 |
|---|---|---|---|
| AS34872 | Sarah Rossius trading as Servperso Systems | Declared | Observed |
| AS44066 | firstcolo GmbH | 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 AS199476 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 |
|---|---|---|---|---|---|
| 194.39.244.0/24 | RIPE | Syndicat IT & Internet - DE | SYNDICAT | 2026-07-09 | Announced |
| 2a13:9d80::/48 | RIPE | — | SYNDICAT | 2026-04-23 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS199476 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-FIRSTCOLO | RIPE | Lists AS199476 as a direct member |
AS-HURRICANEV6 | RADB | Lists AS199476 as a direct member |
AS-RETN-ACTUAL-V6 | RIPE | Lists AS199476 as a direct member |
AS-VOLGATELECOM-CUSTOMERS | RIPE | Lists AS199476 as a direct member |
AS199476:AS-SYNDICAT | RIPE | Lists AS199476 as a direct member |
AS34872:AS-DOWNSTREAM-NL | RIPE | Lists AS199476 as a direct member |
AS37989:AS-SG | APNIC | Lists AS199476 as a direct member |
RPKI from rpki-client, validated 2026-11-04 13:04 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-11-04. Cross-check on bgp.he.net.