AS11203 ASPA Check - Matrix Broadband

Published

MATRIX-BROADBAND - Matrix Broadband🇺🇸 - ASPA check for AS11203: the upstream transit providers AS11203 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS11203 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 AS11203 in an AS-path. If AS11203 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

AS11203 peering topology: 3 upstream providers and 0 downstream customersUpstreams: AS3356, AS7018, AS54048. No downstreams.AS11203 - MATRIX-BROADBAND - Matrix BroadbandAS11203MATRIX-BROADBAND - Ma…AS3356LEVEL3 - Level 3 Pare…AS3356 - LEVEL3 - Level 3 Parent, LLCAS7018ATT-INTERNET4 - ATT E…AS7018 - ATT-INTERNET4 - ATT Enterprises, LLCAS54048CVIN - Vast NetworksAS54048 - CVIN - Vast NetworksUPSTREAMSDOWNSTREAMS

Upstream Providers(3)

AS11203 authorizes these ASNs as upstream transit providers.

ASNName
AS3356🇺🇸LEVEL3 - Level 3 Parent, LLC
AS7018🇺🇸ATT-INTERNET4 - AT&T Enterprises, LLC
AS54048🇺🇸CVIN - Vast Networks

ASPA object expires: 2026-10-16

Related Tools and Guides

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