View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	202.39.96.0/20	Systex Corporation SYSNET Business Department
	210.63.0.0/18	Systex Corporation SYSNET Business Department
	210.67.0.0/18	Systex Corporation SYSNET Business Department
	210.67.112.0/20	Systex Corporation SYSNET Business Department
	210.67.128.0/20	Taiwan Network Information Center

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation Policy naughty_jang Policy lucid_haslett

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS9924	Taiwan Fixed Network, Telco and Network Service Provider.	✔	✘
	AS4780	Digital United Inc.	✔	✘

---

Peers

	ASN	Description	IPv4	IPv6
	AS4780	Digital United Inc.	✔	✘
	AS9924	Taiwan Fixed Network, Telco and Network Service Provider.	✔	✘
	AS7481	TWIX Route Servers	✔	✘

aut-num:        AS4783
as-name:        
descr:          SYSTEX CORPORATION
descr:          SYSNET BUSINESS UINT
descr:          Taipei Taiwan R.O.C.
country:        TW
import:         from AS4778 action pref=101; accept ANY
import:         from AS4780 action pref=102; accept ANY
import:         from AS7481 action pref=103; accept ANY
import:         from AS7483 action pref=104; accept ANY
import:         from AS9311 action pref=105; accept ANY
export:         to AS4778 announce ANY
export:         to AS4780 announce ANY
export:         to AS7481 announce ANY
export:         to AS7483 announce ANY
export:         to AS9311 announce ANY
default:        to AS4780 action pref=101; networks ANY
admin-c:        JC4-AP
tech-c:         JC4-AP
abuse-c:        AT939-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-TWNIC-AP
last-modified:  2021-11-04T00:48:51Z
source:         APNIC

Last Update: 2025-04-25T03:22:13Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RADB	as-twig	3375
RADB	as-kddcustomer2	8208
RADB	as-telstra-intl-customers	10818
RADB	as-tfn-transit1	102
RADB	as-above-as-ap	21
RADB	as58453:as-asiaascust	24693
NTTCOM	as-tfn-transit1	102
RADB	as-seednet	275
RIPE	as-retn-actual-v4	11486
APNIC	as58453:as-asiaascust	24693
NTTCOM	as-systex	1
NTTCOM	as-kgex	13
RADB	as3491:as-customers-ap	66895
RADB	as3491:as-customers-na	39563
RADB	as-hurricane	23429
APNIC	as-hktcustomer	196
RADB	as-anc-customer-proxy-register	2404
LEVEL3	as-level3-origins-na	0