AS212522 ASPA Check - SIX ISP Service EG

Published

SIX-AS ISP Service eG🇩🇪 - ASPA check for AS212522: the upstream transit providers AS212522 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS212522 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.

ASPA Status
Published
Upstream Providers
3
Downstream Customers
1

How to read this ASPA check

The 3 providers below are the only networks allowed to appear directly above AS212522 in an AS-path. If AS212522 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

AS212522 peering topology: 3 upstream providers and 1 downstream customerUpstreams: AS553, AS33891, AS47147. Downstreams: AS14789.AS212522 - SIX-AS ISP Service eGAS212522SIX-AS ISP Service eGAS553BELWUE Universitaet S…AS553 - BELWUE Universitaet StuttgartAS33891CORE-BACKBONE Core-Ba…AS33891 - CORE-BACKBONE Core-Backbone GmbHAS47147AS-ANX Anexia Cloud S…AS47147 - AS-ANX Anexia Cloud Solutions GmbHAS14789CLOUDFLARENET - Cloud…AS14789 - CLOUDFLARENET - Cloudflare, Inc.UPSTREAMSDOWNSTREAMS

Upstream Providers(3)

AS212522 authorizes these ASNs as upstream transit providers.

ASNName
AS553🇩🇪BELWUE Universitaet Stuttgart
AS33891🇩🇪CORE-BACKBONE Core-Backbone GmbH
AS47147🇦🇹AS-ANX Anexia Cloud Solutions GmbH

Downstream Customers(1)

These ASNs list AS212522 as an authorized upstream provider.

ASNName
AS14789🇺🇸CLOUDFLARENET - Cloudflare, Inc.

ASPA object expires: 2026-10-27

Related Tools and Guides

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