AS18047
National Tsing-Hua University
AS18047 is National Tsing-Hua University. It announces 73,728 IPv4 addresses in 2 prefixes, and 0 IPv6 prefixes.
Taiwan· APNIC· allocated 2001-11-09· education
73,728
IPv4 addresses announced
2
IPv4 prefixes
0
IPv6 prefixes
100.00%
of its routes RPKI-valid
73,728
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Taiwan73,728 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- NTHU-TW
- name
- National Tsing-Hua University
- country
- TW
- source
- apnic
- updated
- 2025-11-06
- descr
- National Tsing-Hua University / Hsinchu, Taiwan
- maintainer
- MAINT-TW-TWNIC
- maintainer email
- chku@twnic.net.tw
- abuse
- AT939-AP
- abuse name
- ABUSE TWNICAP
- abuse email
- hostmaster@twnic.tw
- abuse kind
- role
- admin
- SC547-AP
- tech
- SC547-AP
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.
- VPN IP235draytek, vpngate0.32%
- geonix, proxyseller, geonode0.18%
- None here
- None here
- None here
- None here
- Hosting IP20,48027.78%
- None here
- None here
- None here
- SSH IP1,1851.61%
- SMTP IP220.03%
- 0.06%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 120.127.160.0/19 | Taiwan | valid | 19 | 2026-10-02 |
| 140.114.0.0/16 | Taiwan | valid | 19 | 2026-10-02 |
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