AS2605 ASPA Check - CESNET Z.S.P.O

Published

CESNET CESNET z.s.p.o.🇨🇿 - ASPA check for AS2605: the upstream transit providers AS2605 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS2605 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 AS2605 in an AS-path. If AS2605 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

AS2605 peering topology: 3 upstream providers and 0 downstream customersUpstreams: AS174, AS2852, AS6762. No downstreams.AS2605 - CESNET CESNET z.s.p.o.AS2605CESNET CESNET z.s.p.o.AS174COGENT-174 - Cogent C…AS174 - COGENT-174 - Cogent Communications, LLCAS2852CESNET2 CESNET z.s.p.…AS2852 - CESNET2 CESNET z.s.p.o.AS6762SEABONE-NET TELECOM I…AS6762 - SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.UPSTREAMSDOWNSTREAMS

Upstream Providers(3)

AS2605 authorizes these ASNs as upstream transit providers.

ASNName
AS174🇺🇸COGENT-174 - Cogent Communications, LLC
AS2852🇨🇿CESNET2 CESNET z.s.p.o.
AS6762🇮🇹SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.

ASPA object expires: 2026-10-27

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