AS51057 ASPA Check - NEXXTRA

Published

NEXXTRA nexxtra GmbH🇩🇪 - ASPA check for AS51057: the upstream transit providers AS51057 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS51057 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.

ASPA Status
Published
Upstream Providers
2
Downstream Customers
0

How to read this ASPA check

The 2 providers below are the only networks allowed to appear directly above AS51057 in an AS-path. If AS51057 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

AS51057 peering topology: 2 upstream providers and 0 downstream customersUpstreams: AS174, AS1299. No downstreams.AS51057 - NEXXTRA nexxtra GmbHAS51057NEXXTRA nexxtra GmbHAS174COGENT-174 - Cogent C…AS174 - COGENT-174 - Cogent Communications, LLCAS1299TWELVE99 Arelion Swed…AS1299 - TWELVE99 Arelion Sweden ABUPSTREAMSDOWNSTREAMS

Upstream Providers(2)

AS51057 authorizes these ASNs as upstream transit providers.

ASNName
AS174🇺🇸COGENT-174 - Cogent Communications, LLC
AS1299🇸🇪TWELVE99 Arelion Sweden AB

ASPA object expires: 2026-10-28

Related Tools and Guides

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