AS4783 SYSTEX CORPORATION

Taiwan SYSNET-AS1 APNIC 7 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

40,960

IPv6 /48 networks

RPKI

7 valid0 no ROA

Peers and downstreams

Holder

AS name: SYSNET-AS1
Description: SYSTEX CORPORATION SYSNET BUSINESS UINT Taipei Taiwan R.O.C.
Organisation: SYSTEX CORPORATION
Abuse contact: Not published
Assigned: 1996-07-08
Registered: 2008-09-04
Record last changed: 2025-11-06 09:06 UTC

202.39.96.0/20 210.63.0.0/19 210.63.32.0/19 210.67.0.0/20 210.67.112.0/20 210.67.16.0/20 210.67.32.0/19

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 75/100

pass	Prefixes covered by valid ROAs 7 of 7 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
pass	Working abuse contact netservice@systex.com is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
pass	Registry record maintained Last changed 2025-11-06.	5/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/4783"><img src="https://ip-fd.net/badge/asn/4783/health.svg" alt="AS4783 network health on IP-FD.net"></a>

Markdown

[![AS4783 network health](https://ip-fd.net/badge/asn/4783/health.svg)](https://ip-fd.net/asn/4783)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

2026-10-04 04:15 UTC

Relationship changed

AS7481

upstream to peer

WHOIS

aut-num:        AS4783
as-name:        SYSNET-AS1
handle:         AS4783
remarks:        SYSTEX CORPORATION
remarks:        SYSNET BUSINESS UINT
remarks:        Taipei Taiwan R.O.C.
abuse:          IRT-SYSNET-TW (IRT-SYSNET-TW) <netservice@systex.com>
technical,administrative:JC4-AP (Jackie Chang) <harrison@ms1.hinet.net>
registration:   2008-09-04T06:40:27Z
last changed:   2025-11-06T09:06:02Z
source:         APNIC (RDAP)

Routing data

Updated 1 days ago

Registry record

Fetched 1 days ago from APNIC RDAP

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/4783

const res = await fetch('https://ip-fd.net/api/v1/asn/4783', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/4783', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/4783');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/4783", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

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