AS62523 ASPA Check - CIRBN

Published

CIRBN-LLC - CIRBN, LLC🇺🇸 - ASPA check for AS62523: the upstream transit providers AS62523 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS62523 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
1

How to read this ASPA check

The 3 providers below are the only networks allowed to appear directly above AS62523 in an AS-path. If AS62523 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

AS62523 peering topology: 3 upstream providers and 1 downstream customerUpstreams: AS174, AS3257, AS6939. Downstreams: AS399440.AS62523 - CIRBN-LLC - CIRBN, LLCAS62523CIRBN-LLC - CIRBN, LLCAS174COGENT-174 - Cogent C…AS174 - COGENT-174 - Cogent Communications, LLCAS3257GTT-BACKBONE GTT Comm…AS3257 - GTT-BACKBONE GTT Communications Inc.AS6939HURRICANE - Hurricane…AS6939 - HURRICANE - Hurricane Electric LLCAS399440AS-HEARTLANDFIBER - H…AS399440 - AS-HEARTLANDFIBER - Heartland Fiber, Inc.UPSTREAMSDOWNSTREAMS

Upstream Providers(3)

AS62523 authorizes these ASNs as upstream transit providers.

ASNName
AS174🇺🇸COGENT-174 - Cogent Communications, LLC
AS3257🇺🇸GTT-BACKBONE GTT Communications Inc.
AS6939🇺🇸HURRICANE - Hurricane Electric LLC

Downstream Customers(1)

These ASNs list AS62523 as an authorized upstream provider.

ASNName
AS399440🇺🇸AS-HEARTLANDFIBER - Heartland Fiber, Inc.

ASPA object expires: 2026-10-28

Related Tools and Guides

← Back to AS62523