AS203135 ASPA Check - CTNET B.V

Published

CTNET CTNET B.V.🇳🇱 - ASPA check for AS203135: the upstream transit providers AS203135 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS203135 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.

ASPA Status
Published
Upstream Providers
2
Downstream Customers
0

How to read this ASPA check

The 2 providers below are the only networks allowed to appear directly above AS203135 in an AS-path. If AS203135 uses a transit provider that is missing from this list, routers that enforce ASPA treat its routes through that provider as invalid, so the list should include every current and backup transit provider. Peers do not belong in it.

Step-by-step ASPA check guide - including how to validate an AS-path hop by hop.

Peering Topology

AS203135 peering topology: 2 upstream providers and 0 downstream customersUpstreams: AS43366, AS209390. No downstreams.AS203135 - CTNET CTNET B.V.AS203135CTNET CTNET B.V.AS43366OSSO OSSO B.V.AS43366 - OSSO OSSO B.V.AS209390VIADATA-AS CTNET ICT …AS209390 - VIADATA-AS CTNET ICT Infrastructuur B.VUPSTREAMSDOWNSTREAMS

Upstream Providers(2)

AS203135 authorizes these ASNs as upstream transit providers.

ASNName
AS43366🇳🇱OSSO OSSO B.V.
AS209390🇳🇱VIADATA-AS CTNET ICT Infrastructuur B.V

ASPA object expires: 2026-10-12

Related Tools and Guides

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