asn.dev

Autonomous system

AS17713 NSYSU-TW National Sun Yat-sen University

Unclassified APNIC

IPv4 addresses 65.54K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly TW
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

National Sun Yat-sen University

Taiwan, Province of China · AI-generated

education university taiwan

NSYSU-TW is operated by National Sun Yat-sen University.

What it's used for

  • The space carries university infrastructure, indicated by the netname T-NSYSU.EDU.TW-NET and the registrant Ministry of Education Computer Center.
  • The AS announces 65536 IPv4 addresses within a single /16 prefix (140.117.0.0/16) and maintains 2 observed neighbours, a ratio consistent with an institutional access network rather than a transit provider.

Notable

  • The RDAP registrant is listed as unknown for the primary prefix, while the registry holder is identified as the Ministry of Education Computer Center.
  • The address inventory consists of a single contiguous /16 block with no IPv6 prefixes announced.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS9264Academia Sinica7

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 65.54K addresses IPv6 0 prefixes

CountryNamePrefixes
TWTaiwan, Province of China1

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS17713
Registry name
NSYSU-TW
Abuse contact
noc@mail.moe.gov.tw
Registered
2008-09-04
Last changed
2025-11-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
42 authorising AS17713
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS17713

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 440 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check