AS39225 ASPA Check - FCIO ALT Flying Circus Internet Operations
PublishedFCIO-ALT Flying Circus Internet Operations GmbH🇩🇪 - ASPA check for AS39225: the upstream transit providers AS39225 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS39225 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.
ASPA Status
Published
Upstream Providers
1
Downstream Customers
0
How to read this ASPA check
AS39225 publishes provider AS0: it declares itself transit-free. A BGP path in which any network appears directly above AS39225 as its provider is ASPA-invalid.
Step-by-step ASPA check guide - including how to validate an AS-path hop by hop.
Peering Topology
Upstream Providers(1)
AS39225 authorizes these ASNs as upstream transit providers.
| ASN | Name |
|---|---|
| Tier 1 | Transit-free - declares no upstream provider |
ASPA object expires: 2026-10-12
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
- AS39225 Overview - prefixes, BGP routes, peers, and RPKI status