AS209137 ASPA Check - Springo

Published

Springo Springo Srl🇮🇹 - ASPA check for AS209137: the upstream transit providers AS209137 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS209137 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 AS209137 in an AS-path. If AS209137 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

AS209137 peering topology: 2 upstream providers and 0 downstream customersUpstreams: AS174, AS12874. No downstreams.AS209137 - Springo Springo SrlAS209137Springo Springo SrlAS174COGENT-174 - Cogent C…AS174 - COGENT-174 - Cogent Communications, LLCAS12874FASTWEB Fastweb SpAAS12874 - FASTWEB Fastweb SpAUPSTREAMSDOWNSTREAMS

Upstream Providers(2)

AS209137 authorizes these ASNs as upstream transit providers.

ASNName
AS174🇺🇸COGENT-174 - Cogent Communications, LLC
AS12874🇮🇹FASTWEB Fastweb SpA

ASPA object expires: 2026-10-23

Related Tools and Guides

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