AS8943 ASPA Check - JUMP Networks
PublishedJUMP Jump Networks Ltd🇬🇧 - ASPA check for AS8943: the upstream transit providers AS8943 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS8943 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.
How to read this ASPA check
The 2 providers below are the only networks allowed to appear directly above AS8943 in an AS-path. If AS8943 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(2)
AS8943 authorizes these ASNs as upstream transit providers.
| ASN | Name |
|---|---|
| AS1299 | 🇸🇪TWELVE99 Arelion Sweden AB |
| AS5405 | 🇩🇪INTERDOTLINK Inter.link GmbH |
Downstream Customers(6)
These ASNs list AS8943 as an authorized upstream provider.
| ASN | Name |
|---|---|
| AS43950 | 🇬🇧SPILSBY-AS Terence Froy trading as "Spilsby Internet Solutions" |
| AS44671 | 🇬🇧SKYLINE-ASN Skyline Networks & Consultancy Ltd |
| AS44934 | 🇬🇧ARACHSYS Arachsys Internet Services Ltd |
| AS200636 | 🇬🇧PARAVIRT Paravirt LTD |
| AS207080 | 🇬🇧Basil-Fillan Jack Fillan |
| AS210258 | 🇬🇧Wildanet Wildanet Ltd |
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
- AS8943 Overview - prefixes, BGP routes, peers, and RPKI status