Wende Tan
AS209300 is Wende Tan (twd2.net). It announces 256 IPv4 addresses in 1 prefixes, and 5 IPv6 prefixes.
China· RIPE· allocated 2019-03-01· 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.
- United Kingdom256 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- TWD2-NET
- name
- Wende Tan
- org
- ORG-WT43-RIPE
- org name
- Wende Tan
- org address
- Department of Computing, Imperial College London, Huxley Building, 180 Queen's Gate, London, SW7 2RH, UNITED KINGDOM
- org country
- CN
- country
- CN
- source
- ripe
- status
- ASSIGNED
- created
- 2019-03-01
- updated
- 2026-04-30
- descr
- TWD2 Education and Research Network / London, United Kingdom
- maintainer
- RIPE-NCC-END-MNT|twd2-mnt
- abuse
- WTNN1-RIPE
- abuse name
- TWD2 Education and Research Network NOC
- abuse email
- twd2.me+abuse@gmail.com
- 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
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 44.30.120.0/24 | United Kingdom | not found | 16 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2404:f4c0:f000::/44also AS24239 | China | valid | 11 | 2026-10-02 |
| 2404:f4c0:f001::/48 | China | valid | 19 | 2026-10-02 |
| 2404:f4c0:f002::/48 | China | valid | 18 | 2026-10-02 |
| 2a05:1085::/32 | United Kingdom | valid | 19 | 2026-10-02 |
| 2a0c:b641:573::/48 | United Kingdom | valid | 19 | 2026-10-02 |
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