AS402657 ASPA Check - QuestMark

Published

QUESTMARK - QuestMark🇺🇸 - ASPA check for AS402657: the upstream transit providers AS402657 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS402657 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
0

How to read this ASPA check

The 3 providers below are the only networks allowed to appear directly above AS402657 in an AS-path. If AS402657 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

AS402657 peering topology: 3 upstream providers and 0 downstream customersUpstreams: AS174, AS7018, AS16509. No downstreams.AS402657 - QUESTMARK - QuestMarkAS402657QUESTMARK - QuestMarkAS174COGENT-174 - Cogent C…AS174 - COGENT-174 - Cogent Communications, LLCAS7018ATT-INTERNET4 - ATT E…AS7018 - ATT-INTERNET4 - ATT Enterprises, LLCAS16509AMAZON-02 - Amazon.co…AS16509 - AMAZON-02 - Amazon.com, Inc.UPSTREAMSDOWNSTREAMS

Upstream Providers(3)

AS402657 authorizes these ASNs as upstream transit providers.

ASNName
AS174🇺🇸COGENT-174 - Cogent Communications, LLC
AS7018🇺🇸ATT-INTERNET4 - AT&T Enterprises, LLC
AS16509🇺🇸AMAZON-02 - Amazon.com, Inc.

ASPA object expires: 2026-10-28

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