AS204921 ASPA Check - YunZheng Network Zhenyun Sun

Published

YunZheng-Network zhenyun sun🇬🇧 - ASPA check for AS204921: the upstream transit providers AS204921 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS204921 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.

ASPA Status
Published
Upstream Providers
16
Downstream Customers
4

How to read this ASPA check

The 16 providers below are the only networks allowed to appear directly above AS204921 in an AS-path. If AS204921 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

AS204921 peering topology: 16 upstream providers and 4 downstream customersUpstreams: AS6939, AS11421, AS11967, AS17408, AS18423, AS36530, AS40792, AS44324 and more. Downstreams: AS207529, AS208223, AS210352, AS211575.AS204921 - YunZheng-Network zhenyun sunAS204921YunZheng-Network zhen…AS6939HURRICANE - Hurricane…AS6939 - HURRICANE - Hurricane Electric LLCAS11421HYWG-BACKBONE - HYWAS11421 - HYWG-BACKBONE - HYWAS11967HOP179 Hop179 OUAS11967 - HOP179 Hop179 OUAS17408ABOVE-AS-AP - AboveNe…AS17408 - ABOVE-AS-AP - AboveNet Communications TaiwanAS18423RAID-AS-TW - RAID Net…AS18423 - RAID-AS-TW - RAID Networks Co., Ltd.AS36530FUTURE-LAIN - IDC CubeAS36530 - FUTURE-LAIN - IDC CubeAS40792CYBERVERSE - CYBERVER…AS40792 - CYBERVERSE - CYBERVERSEAS44324MOEDOVE-AS MoeDove LLCAS44324 - MOEDOVE-AS MoeDove LLCView all 16 upstreams →AS207529NyanLoliNetwork NYANL…AS207529 - NyanLoliNetwork NYANLOLI LTDAS208223FOXO-AS SHU-HAO TUNGAS208223 - FOXO-AS SHU-HAO TUNGAS210352YijiaXu Yijia XuAS210352 - YijiaXu Yijia XuAS211575RuiNetwork Rui FengAS211575 - RuiNetwork Rui FengUPSTREAMSDOWNSTREAMS

Upstream Providers(16)

AS204921 authorizes these ASNs as upstream transit providers.

ASNName
AS6939🇺🇸HURRICANE - Hurricane Electric LLC
AS11421🇺🇸HYWG-BACKBONE - HYW
AS11967🇪🇪HOP179 Hop179 OU
AS17408🇹🇼ABOVE-AS-AP - AboveNet Communications Taiwan
AS18423RAID-AS-TW - RAID Networks Co., Ltd.
AS36530🇺🇸FUTURE-LAIN - IDC Cube
AS40792🇺🇸CYBERVERSE - CYBERVERSE
AS44324🇺🇸MOEDOVE-AS MoeDove LLC
AS51087🇬🇧BLING-AS Bling Network Ltd
AS140096🇭🇰JINX-AS-AP - JINX CO., LIMITED
16 total
1 / 2

Downstream Customers(4)

These ASNs list AS204921 as an authorized upstream provider.

ASNName
AS207529🇬🇧NyanLoliNetwork NYANLOLI LTD
AS208223🇹🇼FOXO-AS SHU-HAO TUNG
AS210352🇨🇳YijiaXu Yijia Xu
AS211575🇨🇳RuiNetwork Rui Feng

ASPA object expires: 2026-10-27

Related Tools and Guides

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