National Center for High-performance Computing
AS7539 is National Center for High-performance Computing (twaren.net). It announces 86,528 IPv4 addresses in 14 prefixes, and 1 IPv6 prefixes.
Taiwan· APNIC· allocated 1997-03-22· 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.
- Taiwan86,528 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- TWAREN-TW
- name
- National Center for High-performance Computing
- country
- TW
- source
- apnic
- updated
- 2025-11-06
- descr
- National Center for High-performance Computing / HsinChu Taiwan 300
- 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
- nNA6-AP
- admin name
- nchc Network Administrator
- admin email
- noc@twaren.net
- admin phone
- +886-6-505-0945
- admin kind
- role
- admin country
- TW
- tech
- nNA6-AP
- tech name
- nchc Network Administrator
- tech email
- noc@twaren.net
- tech phone
- +886-6-505-0945
- tech kind
- role
- tech country
- TW
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 IP38best_proxy_switcher0.04%
- proxyseller, geonode, iproyal0.00%
- None here
- None here
- None here
- None here
- Hosting IP8,4489.76%
- None here
- None here
- None here
- SSH IP2,8383.28%
- SMTP IP2,0662.39%
- 0.09%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 103.124.72.0/22 | Taiwan | valid | 19 | 2026-10-02 |
| 103.124.72.0/24 | Taiwan | valid | 4 | 2026-10-02 |
| 103.124.73.0/24 | Taiwan | valid | 4 | 2026-10-02 |
| 103.160.220.0/23 | Taiwan | valid | 4 | 2026-10-02 |
| 120.101.64.0/22 | Taiwan | invalid:origin | 1 | 2026-10-02 |
| 140.110.0.0/16 | Taiwan | valid | 19 | 2026-10-02 |
| 140.110.200.0/21 | Taiwan | valid | 17 | 2026-10-02 |
| 140.110.215.0/24 | Taiwan | valid | 17 | 2026-10-02 |
| 203.145.200.0/21 | Taiwan | valid | 18 | 2026-10-02 |
| 203.145.208.0/20 | Taiwan | valid | 19 | 2026-10-02 |
| 211.73.64.0/19 | Taiwan | valid | 19 | 2026-10-02 |
| 211.73.68.0/23 | Taiwan | valid | 4 | 2026-10-02 |
| 211.73.72.0/24 | Taiwan | valid | 4 | 2026-10-02 |
| 211.79.48.0/20 | Taiwan | valid | 19 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:e10::/32 | Taiwan | valid | 20 | 2026-10-02 |
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