AS20012 ASPA Check - Interworks Networking Services

Published

CHILLER-CITY - Interworks Networking Services🇺🇸 - ASPA check for AS20012: the upstream transit providers AS20012 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS20012 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.

ASPA Status
Published
Upstream Providers
4
Downstream Customers
0

How to read this ASPA check

The 4 providers below are the only networks allowed to appear directly above AS20012 in an AS-path. If AS20012 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

AS20012 peering topology: 4 upstream providers and 0 downstream customersUpstreams: AS174, AS209, AS3356, AS22773. No downstreams.AS20012 - CHILLER-CITY - Interworks Networking ServicesAS20012CHILLER-CITY - Interw…AS174COGENT-174 - Cogent C…AS174 - COGENT-174 - Cogent Communications, LLCAS209CENTURYLINK-US-LEGACY…AS209 - CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLCAS3356LEVEL3 - Level 3 Pare…AS3356 - LEVEL3 - Level 3 Parent, LLCAS22773ASN-CXA-ALL-CCI-22773…AS22773 - ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc.UPSTREAMSDOWNSTREAMS

Upstream Providers(4)

AS20012 authorizes these ASNs as upstream transit providers.

ASNName
AS174🇺🇸COGENT-174 - Cogent Communications, LLC
AS209🇺🇸CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC
AS3356🇺🇸LEVEL3 - Level 3 Parent, LLC
AS22773🇺🇸ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc.

ASPA object expires: 2026-10-28

Related Tools and Guides

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