AS21738 ASPA Check - Rozint

Published

ROZINT - Rozint🇺🇸 - ASPA check for AS21738: the upstream transit providers AS21738 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS21738 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
17

How to read this ASPA check

The 4 providers below are the only networks allowed to appear directly above AS21738 in an AS-path. If AS21738 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

AS21738 peering topology: 4 upstream providers and 17 downstream customersUpstreams: AS1299, AS3257, AS6939, AS32097. Downstreams: AS6517, AS6589, AS23507, AS26006, AS30114, AS30690, AS47689, AS54148 and more.AS21738 - ROZINT - RozintAS21738ROZINT - RozintAS1299TWELVE99 Arelion Swed…AS1299 - TWELVE99 Arelion Sweden ABAS3257GTT-BACKBONE GTT Comm…AS3257 - GTT-BACKBONE GTT Communications Inc.AS6939HURRICANE - Hurricane…AS6939 - HURRICANE - Hurricane Electric LLCAS32097WII - WholeSale Inter…AS32097 - WII - WholeSale Internet, Inc.AS6517LAKENETWORKS-AS - LAK…AS6517 - LAKENETWORKS-AS - LAKENETWORKSAS6589ROZINT - RozintAS6589 - ROZINT - RozintAS23507AVSISP - AV SERVICES …AS23507 - AVSISP - AV SERVICES LLCAS26006EXODO - Exodo LLCAS26006 - EXODO - Exodo LLCAS30114DECIMA-LLC - Decima L…AS30114 - DECIMA-LLC - Decima LLCAS30690KAZEHANA-NETWORKS - K…AS30690 - KAZEHANA-NETWORKS - Kazehana Networks LLCAS47689Pudu Pudu, LLCAS47689 - Pudu Pudu, LLCAS54148DYNAMIC-QUANTUM-NETWO…AS54148 - DYNAMIC-QUANTUM-NETWORKS - Dynamic Quantum NetworksView all 17 downstreams →UPSTREAMSDOWNSTREAMS

Upstream Providers(4)

AS21738 authorizes these ASNs as upstream transit providers.

ASNName
AS1299🇸🇪TWELVE99 Arelion Sweden AB
AS3257🇺🇸GTT-BACKBONE GTT Communications Inc.
AS6939🇺🇸HURRICANE - Hurricane Electric LLC
AS32097🇺🇸WII - WholeSale Internet, Inc.

Downstream Customers(17)

These ASNs list AS21738 as an authorized upstream provider.

ASNName
AS6517🇺🇸LAKENETWORKS-AS - LAKENETWORKS
AS6589🇺🇸ROZINT - Rozint
AS23507🇺🇸AVSISP - AV SERVICES LLC
AS26006🇺🇸EXODO - Exodo LLC
AS30114🇺🇸DECIMA-LLC - Decima LLC
AS30690🇺🇸KAZEHANA-NETWORKS - Kazehana Networks LLC
AS47689🇺🇸Pudu Pudu, LLC
AS54148🇨🇦DYNAMIC-QUANTUM-NETWORKS - Dynamic Quantum Networks
AS199518🇺🇸GSHAPIRO-AS Gregory Shapiro
AS200242🇩🇪de-theirs Ember Ana Reimer
17 total
1 / 2

ASPA object expires: 2026-10-28

Related Tools and Guides

← Back to AS21738