Autonomous system
AS18426 STPI-AS-TW National Applied Research Laboratories
Unclassified APNIC
Summary
National Applied Research Laboratories
research government business
STPI-AS-TW is operated by National Applied Research Laboratories.
What it's used for
- The address space carries infrastructure for a national research institution, as indicated by the netname
STPI-TWand the holder's identity as a government-affiliated research body. - The AS announces 2048 IPv4 addresses within a single prefix (
203.145.192.0/21) and maintains 2 observed neighbours, a ratio consistent with a small, self-contained internal network rather than a transit or large-scale access provider.
Notable
- The RDAP registrant for the announced prefix is listed as
unknown, while the netname isSTPI-TW, which aligns with the AS handle and the registry holder name. - The address inventory consists of a single contiguous /21 block, suggesting a consolidated internal estate for the laboratory's facilities.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 2.05K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TW | Taiwan, Province of China | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS18426- Registry name
- STPI-AS-TW
- Abuse contact
- noc@twaren.net
- Registered
- 2008-09-04
- Last changed
- 2025-11-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS18426
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS18426
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: 442 networks and 1,781 prefixes, as published 2026-10-16. 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