AS59747 ASPA Check - NIX DR NIX.CZ Z.S.P.O

Published

NIX-DR NIX.CZ z.s.p.o.🇨🇿 - ASPA check for AS59747: the upstream transit providers AS59747 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS59747 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 AS59747 in an AS-path. If AS59747 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

AS59747 peering topology: 4 upstream providers and 0 downstream customersUpstreams: AS5610, AS6855, AS6881, AS8251. No downstreams.AS59747 - NIX-DR NIX.CZ z.s.p.o.AS59747NIX-DR NIX.CZ z.s.p.o.AS5610O2-CZECH-REPUBLIC O2 …AS5610 - O2-CZECH-REPUBLIC O2 Czech Republic, a.s.AS6855SK-TELEKOM Slovak Tel…AS6855 - SK-TELEKOM Slovak Telekom, a.s.AS6881NIXCZ NIX.CZ z.s.p.o.AS6881 - NIXCZ NIX.CZ z.s.p.o.AS8251NFX_ZSPO FreeTel, s.r…AS8251 - NFX_ZSPO FreeTel, s.r.o.UPSTREAMSDOWNSTREAMS

Upstream Providers(4)

AS59747 authorizes these ASNs as upstream transit providers.

ASNName
AS5610🇨🇿O2-CZECH-REPUBLIC O2 Czech Republic, a.s.
AS6855🇸🇰SK-TELEKOM Slovak Telekom, a.s.
AS6881🇨🇿NIXCZ NIX.CZ z.s.p.o.
AS8251🇨🇿NFX_ZSPO FreeTel, s.r.o.

ASPA object expires: 2026-10-27

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