AS63899
National Taiwan University of Science and Technology
AS63899 is National Taiwan University of Science and Technology (ntust.edu.tw). It announces 512 IPv4 addresses in 1 prefix, and 0 IPv6 prefixes.
Taiwan· APNIC· allocated 2014-11-19· Education
512
IPv4 addresses announced
1
IPv4 prefix
0
IPv6 prefixes
100.00%
of its routes RPKI-valid
512
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.
- Taiwan512 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CHUAN-CHAN-NET-A
- name
- National Taiwan University of Science and Technology
- country
- TW
- source
- apnic
- updated
- 2025-11-06
- descr
- National Taiwan University of Science and Technology / No.43, Keelung Rd., Sec.4, Daan Dist., / Taipei City,Taiwan
- maintainer
- MAINT-TW-TWNIC
- maintainer email
- chku@twnic.net.tw
- abuse
- AT939-AP
- abuse name
- ABUSE TWNICAP
- abuse email
- hostmaster@twnic.tw
- abuse phone
- +886-2-2737-6208
- abuse kind
- role
- admin
- JMX1-AP
- tech
- ECD1-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.
- 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 |
|---|---|---|---|---|
| 103.191.22.0/23 | Taiwan | Valid | 17 | 2026-10-02 |
00 · Evaluate
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01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.