AS203958 ASPA Check - KUL EDU Katolicki Uniwersytet Lubelski Jana Pawla II
PublishedKUL-EDU-AS Katolicki Uniwersytet Lubelski Jana Pawla IIšµš± - ASPA check for AS203958: the upstream transit providers AS203958 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS203958 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.
How to read this ASPA check
The provider below is the only network allowed to appear directly above AS203958 in an AS-path. If AS203958 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
Upstream Providers(1)
AS203958 authorizes these ASNs as upstream transit providers.
| ASN | Name |
|---|---|
| AS12324 | šµš±LUBMAN-EDU-AS Maria Curie-Sklodowska University |
ASPA object expires: 2026-10-27
Related Tools and Guides
- How to run an ASPA check - read and verify an ASPA record step by step
- ASPA explained - how provider authorization stops route leaks
- ASPA Check tool - check the ASPA record of any other ASN
- RPKI & ROA Lookup - validate prefixes and check ASPA records for any ASN
- Global ASPA Adoption Statistics - transit-free ASNs, top upstream providers, adoption trends
- AS203958 Overview - prefixes, BGP routes, peers, and RPKI status