ASN Lookup Tool

IMPROVE SYSTEM TECHNOLOGY CO., LTD. istvc.com.tw TW TW 2 Routes

AS Data

AS9920

AS9920IMPROVE SYSTEM TECHNOLOGY CO., LTD.

AS Number 9920
AS Name ISTVC-AS-TW
Organization IMPROVE SYSTEM TECHNOLOGY CO., LTD.
Country TW
Website istvc.com.tw
Number of IPv4 Routes 1
Number of IPv6 Routes 1
ASN type BUSINESS
Registry APNIC
Date Allocated N/A

ASN Intelligence API for production workflows

Use ASN data for AS9920 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Powered by ASN data

IP Ranges

Route # IPs
2407:e4c0:1::/48 ~1×10²⁴
103.173.95.0/24 256

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS9249 - AS10239'

as-block:       AS9249 - AS10239
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2022-09-22T22:36:45Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS9915 - AS9924'

as-block:       AS9915 - AS9924
descr:          TWNIC-TW-AS-BLOCK
remarks:        These AS numbers are further assigned by TWNIC
remarks:        to TWNIC members
admin-c:        TWA2-AP
tech-c:         TWA2-AP
mnt-by:         APNIC-HM
mnt-lower:      MAINT-TW-TWNIC
last-modified:  2017-06-29T23:49:13Z
source:         APNIC

role:           TWNIC Whois Administrator
address:        Taiwan Network Information Center
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist.,
address:        Taipei, Taiwan, 105
country:        TW
phone:          +886-2-25289696
fax-no:         +886-2-25287756
e-mail:         hostmaster@twnic.net.tw
admin-c:        ck373-AP
tech-c:         TW922-AP
tech-c:         NS10-AP
nic-hdl:        TWA2-AP
notify:         hostmaster@twnic.net.tw
mnt-by:         MAINT-TW-TWNIC
last-modified:  2020-01-02T03:54:20Z
source:         APNIC

% Information related to 'AS9920'

% Abuse contact for 'AS9920' is 'tonychang22@istvc.com.tw'

aut-num:        AS9920
country:        TW
as-name:        ISTVC-AS-TW
admin-c:        TR413-AP
tech-c:         TR413-AP
abuse-c:        TR413-AP
mnt-irt:        IRT-ISTVC-TW
descr:          IMPROVE SYSTEM TECHNOLOGY CO., LTD.
descr:          19F-2., No. 37, Sec. 2, Sanmin Rd., Banqiao Dist., New Taipei City 220
default:        to AS41051 action pref=4; networks ANY
default:        to AS20473 action pref=2; networks ANY
default:        to AS17408 action pref=2; networks ANY
export:         to AS41051 announce AS9920
export:         to AS20473 announce AS9920
export:         to AS17408 announce AS9920
import:         from AS41051 accept ANY
import:         from AS20473 accept ANY
import:         from AS17408 accept ANY
remarks:        (oid:ISTVC)
last-modified:  2026-06-21T05:37:00Z
source:         APNIC
mnt-by:         MAINT-TW-TWNIC

irt:            IRT-ISTVC-TW
address:        IMPROVE SYSTEM TECHNOLOGY CO., LTD.
address:        19F-2., No. 37, Sec. 2, Sanmin Rd., Banqiao Dist.,
address:        New Taipei City 220
e-mail:         tonychang22@istvc.com.tw
abuse-mailbox:  tonychang22@istvc.com.tw
admin-c:        TR413-AP
tech-c:         TR413-AP
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2026-03-03T00:51:38Z
source:         APNIC

role:           TWNIC ROLE-ISTVC
nic-hdl:        TR413-AP
address:        IMPROVE SYSTEM TECHNOLOGY CO., LTD.
address:        19F-2., No. 37, Sec. 2, Sanmin Rd., Banqiao Dist., New Taipei City 220
country:        TW
phone:          +886-2-29569810
e-mail:         proton@istvc.com.tw
abuse-mailbox:  proton@istvc.com.tw
admin-c:        PC1087-AP
tech-c:         PC1087-AP
remarks:        (hid:PC0916-S-TW)
last-modified:  2026-01-09T09:55:25Z
source:         APNIC
mnt-by:         MAINT-TW-TWNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

Peers

AS Number Description Country
AS131645 KLICKKLACK CO., LTD. TW
AS10135 EASPNET Inc. TW
AS10133 Chief Telecom Inc. TW
AS133375 CHUAN KAI INTERNATIONAL CO., LTD TW
AS131643 Chirue Technology Co., Ltd. TW
AS14537 Continent 8 LLC US
AS215248 Bastiaan Mathijs Brink NL
AS18046 DongFong Technology Co. Ltd. TW
AS131659 NETEASE TW
AS9264 Academia Sinica TW
AS3856 Packet Clearing House, Inc. US
AS4862 Orange Business AS for Asia HK
AS38841 kbro CO. Ltd. TW
AS24429 Zhejiang Taobao Network Co.,Ltd CN
AS204844 NCSE NETWORK LTD GB
AS63900 ZUSO Generation Co., Ltd. TW
AS134823 Sky Digital Co., Ltd. TW
AS131638 ZUSO Generation Co., Ltd. TW
AS15412 Flag Telecom UK Limited GB
AS9244 Diyixian.com (TW) Limited TW
AS6507 Riot Games, Inc US
AS133182 Running River Network Technology Limited HK
AS138915 Kaopu Cloud HK Limited HK
AS152615 Chummy Technology Ltd. TW
AS18422 Industrial Technology Research Institute TW
AS150768 Cloud Walker Co., Ltd. TW
AS17408 Maintain by Chief Telecom TW
AS58807 China Mobile International Limited HK
AS140570 Hong Kong Beecloud System Technology Services Limited HK
AS150770 SHINE TECH INFORMATION COMPANY LIMITED TW
AS17718 Taiwan Network Information center TW
AS18041 Taiwan Digital Streaming Co. TW
AS9922 New Kaohsiung Broadband LTD. TW
AS4780 Digital United Inc. TW
AS19679 Dropbox, Inc. US
AS18411 EDT Network Services Limited Co,Ltd. TW
AS38851 TNET Communication Inc. 10F., No.78, Sec. 2, Chongxin Rd., Sanchong Dist.,New Taipei City, Taiwan (R.O.C Taiwan 241) TW
AS7656 Taiwan Network Access Point TW
AS23764 CTGNet HK
AS204921 zhenyun sun GB
AS131584 Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
AS18419 DaDa Broadband LTD. TW
AS10310 Yahoo Holdings Inc. US
AS62468 VpsQuan L.L.C. US
AS25152 Reseaux IP Europeens Network Coordination Centre (RIPE NCC) NL
AS147049 PacketHub S.A. AU
AS40676 Psychz Networks US
AS141742 Magna Hosting Ltd TW
AS131607 Digidom CableTV Co., LTD. TW
AS2687 AT&T Enterprises, LLC US
AS41051 FREETRANSIT Project CH
AS9416 KBT Co., LTD 4F., No.57, Dongxing Rd., Xinyi Dist., Taipei City 110, Taiwan (R.O.C.) TW
AS19551 Incapsula Inc US
AS131596 TBC TW
AS131644 Taiwan Network Information Center TW
AS131149 Yuan-Jhen Info., Co., Ltd TW
AS42 WoodyNet, Inc. US
AS57976 Blizzard Entertainment, Inc US
AS44324 MoeDove LLC US
AS9917 Li Jing Info Limited TW

Upstreams

AS Number Description Country
AS10133 Chief Telecom Inc. TW
AS6939 Hurricane Electric LLC US
AS137409 GSL Networks Pty LTD AU
AS17408 Maintain by Chief Telecom TW

Contacts

Ready to get started?Get Started with IP Intelligence API Today

CTA Illustration

Frequently Asked Questions

ASN AS9920 is an Autonomous System Number used to identify a network for BGP internet routing.
AS9920 is listed under IMPROVE SYSTEM TECHNOLOGY CO., LTD..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.