AS209740 ASPA Check - M3CONNECT
PublishedM3CONNECT m3connect GmbH🇩🇪 - ASPA check for AS209740: the upstream transit providers AS209740 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS209740 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.
How to read this ASPA check
The 5 providers below are the only networks allowed to appear directly above AS209740 in an AS-path. If AS209740 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(5)
AS209740 authorizes these ASNs as upstream transit providers.
| ASN | Name |
|---|---|
| AS3320 | 🇩🇪DTAG Deutsche Telekom AG |
| AS5405 | 🇩🇪INTERDOTLINK Inter.link GmbH |
| AS8220 | 🇬🇧COLT COLT Technology Services Group Limited |
| AS8422 | 🇩🇪NETCOLOGNE NetCologne Gesellschaft fur Telekommunikation mbH |
| AS34953 | 🇩🇪RELAIX RelAix Networks GmbH |
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
- AS209740 Overview - prefixes, BGP routes, peers, and RPKI status