Autonomous system
AS4783 SYSNET-AS1 SYSTEX CORPORATION
Unclassified APNIC
Summary
SYSTEX Corporation
enterprise hosting legacy
SYSNET-AS1 — the network of SYSTEX Corporation, a large Taiwanese IT services and systems integration company headquartered in Taipei.
What it's used for
- SYSTEX's own corporate network and the infrastructure behind its managed services.
- Hosting, systems integration, and outsourcing services for enterprise and government clients.
Notable
- SYSTEX (listed in Taiwan as 6214) was established in 1997 and is among the country's largest IT service providers, with thousands of employees and tens of thousands of enterprise and public-sector customers.
- Its work spans cloud services, software development and integration, data services, and infrastructure — so the address space behind this ASN is a mix of corporate and customer-facing hosted systems.
Interesting
SYSNETwas SYSTEX's network business unit; the handle has outlived the branding, which is a common pattern for ASNs registered in the 1990s.
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 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 40.96K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TW | Taiwan, Province of China | 4 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS4783- Registry name
- SYSNET-AS1
- Abuse contact
- netservice@systex.com
- Registered
- 2008-09-04
- Last changed
- 2025-11-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 10 authorising AS4783
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 15 naming AS4783
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 1,783 prefixes, as published 2026-10-17. 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