AS39531 ASPA Check - ALTER NET Alter NET

Published

ALTER-NET-AS Alter-NET SRL🇷🇴 - ASPA check for AS39531: the upstream transit providers AS39531 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS39531 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 AS39531 in an AS-path. If AS39531 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

AS39531 peering topology: 4 upstream providers and 0 downstream customersUpstreams: AS5483, AS6204, AS9002, AS12302. No downstreams.AS39531 - ALTER-NET-AS Alter-NET SRLAS39531ALTER-NET-AS Alter-NE…AS5483MAGYAR-TELEKOM-MAIN-A…AS5483 - MAGYAR-TELEKOM-MAIN-AS Magyar Telekom Plc.AS6204ZET-NET INTERKVM HOST…AS6204 - ZET-NET INTERKVM HOST SRLAS9002RETN-AS RETN LimitedAS9002 - RETN-AS RETN LimitedAS12302Vodafone_Ro Vodafone …AS12302 - Vodafone_Ro Vodafone Romania S.A.UPSTREAMSDOWNSTREAMS

Upstream Providers(4)

AS39531 authorizes these ASNs as upstream transit providers.

ASNName
AS5483🇭🇺MAGYAR-TELEKOM-MAIN-AS Magyar Telekom Plc.
AS6204🇷🇴ZET-NET INTERKVM HOST SRL
AS9002🇬🇧RETN-AS RETN Limited
AS12302🇷🇴Vodafone_Ro Vodafone Romania S.A.

ASPA object expires: 2026-10-27

Related Tools and Guides

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