zhenyun sun
AS204921 is zhenyun sun (as204921.net). It announces 768 IPv4 addresses in 6 prefixes, and 19 IPv6 prefixes.
United Kingdom· RIPE· allocated 2025-10-10· education
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- YunZheng-Network
- name
- zhenyun sun
- org
- ORG-ZS89-RIPE
- org name
- zhenyun sun
- org address
- Tartu mnt 67/1-13b, Harjuuma, 10115, Tallinn, Estonia
- org country
- GB
- country
- GB
- source
- ripe
- status
- ASSIGNED
- created
- 2025-10-10
- updated
- 2026-09-09
- descr
- Yunzheng.Space Research Network
- remarks
- Geofeed: https://files.yunzheng.space/webdav/geofeed.csv / | UPSTREAMS / | RAID NETWORK - TPE / | STE NETWORK - AMS / | IDC Cube - HKG / | Sky Digital Co., Ltd. - TPE / | HE.NET - TPE / | AboveNet - TPE / | Bling Network Ltd - FRA / | HYW GLOBAL LLC - TYO / | CYBERVERSE LLC - TYO / | INTERNET EXCHNAGE POINTS / - CXIX | Great Lakes / - STUIX | stuix.io / - TPIX-TW | tpix.net.tw / b222bfa2d373adb3b9314a52c0f4512b
- maintainer
- RIPE-NCC-END-MNT|ZYS-MNT
- abuse name
- Abuse contact role object
- abuse email
- noc@as204921.net
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- cliproxy, anyip, infiniteproxies1.69%
- None here
- None here
- None here
- None here
- Hosting IP25633.33%
- None here
- None here
- None here
- SSH IP273.52%
- None here
- 0.78%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 177.177.80.0/22 | Taiwan | valid | 17 | 2026-10-02 |
| 177.177.80.0/23 | Taiwan | valid | 17 | 2026-10-02 |
| 177.177.80.0/24 | Taiwan | valid | 17 | 2026-10-02 |
| 177.177.81.0/24 | Hong Kong | valid | 16 | 2026-10-02 |
| 177.177.82.0/23 | Taiwan | valid | 17 | 2026-10-02 |
| 177.177.83.0/24 | Taiwan | valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2602:f3ff:83::/48 | Taiwan | valid | 19 | 2026-10-02 |
| 2a0e:aa07:e250::/44 | Taiwan | valid | 19 | 2026-10-02 |
| 2a0e:aa07:e251::/48 | Japan | valid | 19 | 2026-10-02 |
| 2a0e:aa07:e252::/48 | Taiwan | valid | 19 | 2026-10-02 |
| 2a0e:aa07:e253::/48 | Hong Kong | valid | 19 | 2026-10-02 |
| 2a0e:aa07:e256::/48 | Germany | valid | 19 | 2026-10-02 |
| 2a0e:aa07:e25b::/48 | The Netherlands | valid | 19 | 2026-10-02 |
| 2a12:cb41:801::/48 | Taiwan | valid | 19 | 2026-10-02 |
| 2a12:cb41:802::/48 | Japan | valid | 19 | 2026-10-02 |
| 2a12:cb41:803::/48 | Hong Kong | valid | 19 | 2026-10-02 |
| 2a12:cb41:804::/48 | Hong Kong | valid | 19 | 2026-10-02 |
| 2a12:cb41:805::/48 | Germany | valid | 19 | 2026-10-02 |
| 2a12:cb41:806::/48 | The Netherlands | valid | 19 | 2026-10-02 |
| 2a12:cb41:808::/48 | Japan | valid | 19 | 2026-10-02 |
| 2a12:cb41:809::/48 | The Netherlands | valid | 19 | 2026-10-02 |
| 2a12:cb41:80a::/48 | Germany | valid | 19 | 2026-10-02 |
| 2a12:cb41:80b::/48 | Israel | valid | 18 | 2026-10-02 |
| 2a12:cb41:80c::/48 | South Africa | valid | 18 | 2026-10-02 |
| 2a12:cb41:80d::/48 | Singapore | valid | 18 | 2026-10-02 |
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.