AS204921
zhenyun sun
Scanned 1 day ago
🔄 Rescan

📋 Summary

IP address summary information
Namezhenyun sun
WebsiteYunzheng.Space Research Network
IPv4 addresses512
IPv6 addresses~2^84
ASN typeTransit
RegistryRIPE NCC
AllocatedOct 10, 2025
UpdatedMay 29, 2026

📊 IP Ranges

IPv4: 2 | IPv6: 12
NetblockIP Count
2a0e:aa07:e256::/48 0
2a12:cb41:801::/48 0
2a0e:aa07:e252::/48 0
2a12:cb41:804::/48 0
2a0e:aa07:e250::/44 0
2a0e:aa07:e258::/48 0
2a12:cb41:803::/48 0
2a0e:aa07:e254::/48 0
2a0e:aa07:e251::/48 0
2a0e:aa07:e253::/48 0
2a0e:aa07:e259::/48 0
142.249.115.0/24 256
142.249.114.0/24 256
2a12:cb41:802::/48 0

Prefix data from RIPE Stat / RIR allocation records.

📄 WHOIS

RIPE NCC
HandleAS204921
NameYunZheng-Network
Organizationzhenyun sun
Statusactive
AllocatedOct 10, 2025
UpdatedMay 29, 2026

Contacts

Registrantzhenyun sun
Abuse ContactAbuse contact role object <noc@as204921.net>
Admin ContactZHENYUN SUN
Tech ContactZHENYUN SUN
Phone+852-31651702
AddressTartu mnt 67/1-13b, Harjuuma 10115 Tallinn Estonia

Source: RIPE NCC

🔗 Peers

7 peers for this ASN
ASNNameCountry
AS17408 AboveNet Communications Taiwan -
AS204211 LOCYAN-NETWORK-AS Hangzhou Yingyun Network Technology Co., Ltd. -
AS205794 RTTW-AS JINZE YANG -
AS31500 GNM-AS Global Network Management Inc -
AS34549 MEER-AS meerfarbig GmbH & Co. KG -
AS48646 STEFAN6 SDRmedia Verwaltungs GmbH -
AS8298 IPNG IPng Networks GmbH -

Peer data from RIPE Stat ASN neighbours.

⬆️ Upstreams

12 upstreams
ASNName
AS11421 HYW
AS140096 JINX CO., LIMITED
AS18423 RAID Networks Co., Ltd.
AS199310 QFLink-AS XIN BING XIAN
AS204844 NCSE-NETWORK-Global NCSE NETWORK LTD
AS216211 CYBERVERSE-BACKBONE CYBERVERSE LLC
AS25091 IP-Max IP-Max SA
AS36530 IDC Cube
AS40792 CYBERVERSE
AS44324 MOEDOVE-AS MoeDove LLC
AS51087 BLING-AS Bling Network Ltd
AS6939 Hurricane Electric LLC

Upstream data from RIPE Stat routing history.

⬇️ Downstreams

4 downstreams
ASNNameCountry
AS201705 XLI-NET Xinrun Li -
AS207529 NyanLoliNetwork NYANLOLI LTD -
AS208223 FOXO-AS SHU-HAO TUNG -
AS214933 BAKAPUB-NETWORK Bingxin Liu -

🔒 RPKI / ROA

Source: rpki.zorn.ltd
PrefixOrigin ASNMax LengthValidity
142.249.115.0/24 AS204921 /24 ✓ Valid
142.249.114.0/24 AS204921 /24 ✓ Valid

RPKI validation powered by rpki.zorn.ltd (Routinator).

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