Yijia Xu
AS210352 is Yijia Xu (zerowolf.cn). It announces 256 IPv4 addresses in 1 prefix, and 16 IPv6 prefixes.
China· RIPE NCC· allocated 2025-04-16· ISP
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Taiwan256 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- YijiaXu
- name
- Yijia Xu
- org
- ORG-ZN29-RIPE
- org name
- Yijia Xu
- org address
- Shaoxing, Zhejiang
- org country
- CN
- country
- CN
- source
- ripe
- status
- ASSIGNED
- created
- 2025-04-16
- updated
- 2025-10-24
- maintainer
- RIPE-NCC-END-MNT|ZEROWOLF-MNT
- abuse name
- ZEROWOLF-NOC
- abuse email
- z@ski.ink
- abuse phone
- +17208282999
- 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
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 199.19.20.0/24 | Taiwan | Valid | 17 | 2026-10-27 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2406:840:9178::/48 | Taiwan | Valid | 18 | 2026-10-02 |
| 2602:f92a:a47d::/48 | Taiwan | Valid | 18 | 2026-10-02 |
| 2a0f:1cc5:f00::/48 | Taiwan | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f01::/48 | Hong Kong | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f02::/48 | Japan | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f03::/48 | Germany | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f04::/48 | Germany | Valid | 19 | 2026-10-27 |
| 2a0f:1cc5:f05::/48 | Hong Kong | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f06::/48 | United States | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f07::/48 | Japan | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f08::/48 | Australia | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f09::/48 | United States | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f10::/48 | South Africa | Valid | 19 | 2026-10-02 |
| 2a0f:1cc5:f12::/48 | Hong Kong | Valid | 19 | 2026-10-10 |
| 2a0f:1cc5:f13::/48 | Singapore | Valid | 19 | 2026-10-16 |
| 2a0f:1cc5:fff::/48 | Antarctica | 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.