AS205838 ASPA Check - IVB Services Ivory Van Boeschoten Trading IVB Netwerk
PublishedIVB-Services Ivory van Boeschoten trading as IVB Netwerk🇳🇱 - ASPA check for AS205838: the upstream transit providers AS205838 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS205838 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 AS205838 in an AS-path. If AS205838 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)
AS205838 authorizes these ASNs as upstream transit providers.
| ASN | Name |
|---|---|
| AS212762 | 🇳🇱CK-IT-AS Casper Krook trading as Ck IT Solutions |
Downstream Customers(1)
These ASNs list AS205838 as an authorized upstream provider.
| ASN | Name |
|---|---|
| AS210355 | 🇳🇱Firestar-Services Jelle Mulder |
ASPA object expires: 2026-10-29
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
- AS205838 Overview - prefixes, BGP routes, peers, and RPKI status