Autonomous System

AS4783 SYSTEX CORPORATION

ISPActiveTaiwanAPNIC

AS4783 (SYSNET-AS1) is an ISP network operated by SYSTEX CORPORATION in Taiwan, registered with APNIC. It has 7 IPv4 prefixes with 40,960 addresses, which makes it the 4,710th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses40,960in 7 prefixes
IPv6 prefixes0none
Size rank#4,710of 82,200 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationSYSTEX CORPORATION
AS nameSYSNET-AS1
Websitesystex.com
Country Taiwan (TW)
Network typeISP
RegistryAPNIC
Abuse contactnetservice@systex.com
Registered—
Last updated2025-11-06

IPv4 prefixes

7 prefixes · 40,960 addresses
NetworkAddressesFirst – last address
210.63.0.0/198,192210.63.0.0 – 210.63.31.255
210.63.32.0/198,192210.63.32.0 – 210.63.63.255
210.67.32.0/198,192210.67.32.0 – 210.67.63.255
202.39.96.0/204,096202.39.96.0 – 202.39.111.255
210.67.0.0/204,096210.67.0.0 – 210.67.15.255
210.67.16.0/204,096210.67.16.0 – 210.67.31.255
210.67.112.0/204,096210.67.112.0 – 210.67.127.255

IPv6 prefixes

No IPv6 prefixes.

Query AS4783 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS4783&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS4783, with or without a key:

curl "https://api.ipapi.is/?q=210.63.0.1"

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