AS207727 ASPA Check - A5N Asbjorn Sloth Tonnesen Trading A5n

Published

A5N Asbjorn Sloth Tonnesen trading as a5n🇩🇰 - ASPA check for AS207727: the upstream transit providers AS207727 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS207727 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.

ASPA Status
Published
Upstream Providers
2
Downstream Customers
1

How to read this ASPA check

The 2 providers below are the only networks allowed to appear directly above AS207727 in an AS-path. If AS207727 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

AS207727 peering topology: 2 upstream providers and 1 downstream customerUpstreams: AS42541, AS205235. Downstreams: AS208327.AS207727 - A5N Asbjorn Sloth Tonnesen trading as a5nAS207727A5N Asbjorn Sloth Ton…AS42541FIBERBY Fiberby ApSAS42541 - FIBERBY Fiberby ApSAS205235LABITAT LabitatAS205235 - LABITAT LabitatAS208327TOKE-DK Toke Hoiland-…AS208327 - TOKE-DK Toke Hoiland-JorgensenUPSTREAMSDOWNSTREAMS

Upstream Providers(2)

AS207727 authorizes these ASNs as upstream transit providers.

ASNName
AS42541🇩🇰FIBERBY Fiberby ApS
AS205235🇩🇰LABITAT Labitat

Downstream Customers(1)

These ASNs list AS207727 as an authorized upstream provider.

ASNName
AS208327🇩🇰TOKE-DK Toke Hoiland-Jorgensen

ASPA object expires: 2026-10-27

Related Tools and Guides

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