What is ASN AS131630?

ASN AS131630 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS131630?

AS131630 is listed under Lazco Corporation.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS131630 Lazco Corporation | IPGeolocation.io

Lazco Corporation lazco.tw

TW 18 Routes

AS Data

AS131630

AS131630 – Lazco Corporation

AS Number	131630
AS Name	LAZCO
Organization	Lazco Corporation
Country	TW
Website	lazco.tw
Number of IPv4 Routes	7
Number of IPv6 Routes	11
ASN type	ISP
Registry	APNIC
Date Allocated	2011-07-21

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2402:4f20:9999::/48	AS131630	Lazco Corporation	Lazco Corporation	~1×10²⁴
2402:4f20:3::/48	AS131630	Lazco Corporation	Lazco Corporation	~1×10²⁴
2a14:7580:6000::/36	AS131630	Lazco Corporation	Lazco Corporation	~5×10²⁷
2a14:7580:f300::/40	AS131630	Lazco Corporation	Lazco Corporation	~309×10²⁴
2402:4f20::/32	AS131630	Lazco Corporation	Lazco Corporation	~79×10²⁷
2402:6420::/32	AS131630	Lazco Corporation	Lazco Corporation	~79×10²⁷
103.51.88.0/23	AS197537	Wisdom Cloud Internet Technology Pte. Ltd.	Wisdom Cloud Internet Technology Pte. Ltd.	512
160.30.99.0/24	AS131630	Lazco Corporation	Lazco Corporation	256
2402:4f20:10::/48	AS131630	Lazco Corporation	Lazco Corporation	~1×10²⁴
151.158.224.0/23	AS131630	Lazco Corporation	Lazco Corporation	512
2402:4f20:4::/48	AS131630	Lazco Corporation	Lazco Corporation	~1×10²⁴
103.196.172.0/23	AS197537	Wisdom Cloud Internet Technology Pte. Ltd.	Wisdom Cloud Internet Technology Pte. Ltd.	512
2402:4f20::/48	AS131630	Lazco Corporation	Lazco Corporation	~1×10²⁴
2a0f:85c1:390::/48	AS131630	Lazco Corporation	Lazco Corporation	~1×10²⁴
2402:4f20:1::/48	AS131630	Lazco Corporation	Lazco Corporation	~1×10²⁴
151.158.224.0/24	AS131630	Lazco Corporation	Lazco Corporation	256
162.4.236.0/23	AS197537	Wisdom Cloud Internet Technology Pte. Ltd.	Lazco Corporation	512
202.5.10.0/23	AS197537	Wisdom Cloud Internet Technology Pte. Ltd.	Wisdom Cloud Internet Technology Pte. Ltd.	512

Raw Whois Response

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

% Information related to 'AS131072 - AS132095'

as-block:       AS131072 - AS132095
descr:          APNIC 32-bit 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:  2009-09-29T05:34:08Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
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:  2026-08-26T00:40:00Z
source:         APNIC

% Information related to 'AS131584 - AS131639'

as-block:       AS131584 - AS131639
descr:          TWNIC-TW-4-byte-AS-BLOCK1
descr:          These AS numbers are further assigned by TWNIC
descr:          to TWNIC members
country:        TW
admin-c:        TWA2-AP
tech-c:         TWA2-AP
mnt-by:         MAINT-TW-TWNIC
mnt-lower:      MAINT-TW-TWNIC
last-modified:  2025-02-11T03:29:09Z
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 'AS131630'

% Abuse contact for 'AS131630' is 'haco@lazco.tw'

aut-num:        AS131630
country:        TW
as-name:        LAZCO
admin-c:        TR662-AP
tech-c:         TR662-AP
abuse-c:        TR662-AP
mnt-irt:        IRT-LAZCO-TW
descr:          Lazco Corporation
descr:          6 F.-4, No. 26, Sec. 2, Minquan E. Rd., Zhongshan Dist., Taipei City 104425, Taiwan (R.O.C.)
descr:          Taipei City
default:        to AS204844 action pref=100; networks AS131630:AS-LAZCO
default:        to AS20473  action pref=50;  networks AS131630:AS-LAZCO
default:        to AS134823 action pref=90;  networks AS131630:AS-LAZCO
default:        to AS6939   action pref=50;  networks AS131630:AS-LAZCO
default:        to AS32595  action pref=200; networks AS131630:AS-LAZCO
export:         to AS204844 announce AS131630:AS-LAZCO
export:         to AS20473  announce AS131630:AS-LAZCO
export:         to AS134823 announce AS131630:AS-LAZCO
export:         to AS6939   announce AS131630:AS-LAZCO
export:         to AS32595  announce AS131630:AS-LAZCO
import:         from AS204844 action pref=100; accept ANY
import:         from AS20473  action pref=50;  accept ANY
import:         from AS134823 action pref=90;  accept ANY
import:         from AS6939   action pref=50;  accept ANY
import:         from AS32595  action pref=200; accept ANY
remarks:        =========================================
remarks:        Geofeed https://cdn.lazco.tw/geofeed.csv
remarks:        =========================================
remarks:        Website https://www.lazco.tw
remarks:        =========================================
remarks:        (oid:LAZCO)
last-modified:  2026-11-11T10:04:51Z
source:         APNIC
mnt-by:         MAINT-TW-TWNIC

irt:            IRT-LAZCO-TW
address:        Lazco Corporation
address:        6F.-4, No. 26, Zhongshan Dist., Taipei City 104425, Taiwan (R.O.C.)
phone:          +886-928720711
e-mail:         haco@lazco.tw
abuse-mailbox:  haco@lazco.tw
admin-c:        TR662-AP
tech-c:         TR662-AP
remarks:        (oid:LAZCO)
auth:           # Filtered
last-modified:  2026-07-16T02:54:37Z
source:         APNIC
mnt-by:         MAINT-TW-TWNIC

role:           TWNIC ROLE-LAZCO
nic-hdl:        TR662-AP
address:        Lazco Corporation
address:        6 F.-4, No. 26, Sec. 2, Minquan E. Rd., Zhongshan Dist., Taipei City 104425, Taiwan (R.O.C.)
address:        Taipei City
country:        TW
phone:          +886-9-2872-0711
e-mail:         haco@lazco.tw
abuse-mailbox:  haco@lazco.tw
admin-c:        JL6393-AP
tech-c:         JL6393-AP
remarks:        (hid:JL5834-TW)
last-modified:  2026-11-11T10:11:28Z
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

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS131072 - AS132095",
    "description" : [ "APNIC 32-bit ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2009-09-29",
    "source" : "APNIC"
  }, {
    "as_block" : "AS131584 - AS131639",
    "country" : "TW",
    "description" : [ "TWNIC-TW-4-byte-AS-BLOCK1", "These AS numbers are further assigned by TWNIC", "to TWNIC members" ],
    "admin_contacts" : [ "TWA2-AP" ],
    "tech_contacts" : [ "TWA2-AP" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "mnt_lower" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2025-02-11",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS131630",
    "as_name" : "LAZCO",
    "description" : [ "Lazco Corporation", "6 F.-4, No. 26, Sec. 2, Minquan E. Rd., Zhongshan Dist., Taipei City 104425, Taiwan (R.O.C.)", "Taipei City" ],
    "country" : "TW",
    "import" : [ "from AS204844 action pref=100; accept ANY", "from AS20473  action pref=50;  accept ANY", "from AS134823 action pref=90;  accept ANY", "from AS6939   action pref=50;  accept ANY", "from AS32595  action pref=200; accept ANY" ],
    "export" : [ "to AS204844 announce AS131630:AS-LAZCO", "to AS20473  announce AS131630:AS-LAZCO", "to AS134823 announce AS131630:AS-LAZCO", "to AS6939   announce AS131630:AS-LAZCO", "to AS32595  announce AS131630:AS-LAZCO" ],
    "default" : [ "to AS204844 action pref=100; networks AS131630:AS-LAZCO", "to AS20473  action pref=50;  networks AS131630:AS-LAZCO", "to AS134823 action pref=90;  networks AS131630:AS-LAZCO", "to AS6939   action pref=50;  networks AS131630:AS-LAZCO", "to AS32595  action pref=200; networks AS131630:AS-LAZCO" ],
    "admin_contacts" : [ "TR662-AP" ],
    "tech_contacts" : [ "TR662-AP" ],
    "abuse_contacts" : [ "TR662-AP" ],
    "remarks" : [ "=========================================", "Geofeed https://cdn.lazco.tw/geofeed.csv", "=========================================", "Website https://www.lazco.tw", "=========================================", "(oid:LAZCO)" ],
    "mnt_irt" : [ "IRT-LAZCO-TW" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2026-11-11",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-LAZCO-TW",
    "address" : [ "Lazco Corporation", "6F.-4, No. 26, Zhongshan Dist., Taipei City 104425, Taiwan (R.O.C.)" ],
    "city" : "Taipei City",
    "zip_code" : "104425",
    "country" : "TAIWAN R.O.C.",
    "email" : [ "haco@lazco.tw" ],
    "abuse_mailbox" : [ "haco@lazco.tw" ],
    "phone" : [ "+886-928720711" ],
    "admin_contacts" : [ "TR662-AP" ],
    "tech_contacts" : [ "TR662-AP" ],
    "remarks" : [ "(oid:LAZCO)" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2026-07-16",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "TR662-AP",
    "name" : "TWNIC ROLE-LAZCO",
    "address" : [ "Lazco Corporation", "6 F.-4, No. 26, Sec. 2, Minquan E. Rd., Zhongshan Dist., Taipei City 104425, Taiwan (R.O.C.)", "Taipei City" ],
    "street" : "Sec. 2 Minquan E. Rd. Zhongshan Dist.",
    "city" : "R.o.c. Taipei City",
    "zip_code" : "104425",
    "country" : "TW",
    "email" : [ "haco@lazco.tw" ],
    "abuse_mailbox" : [ "haco@lazco.tw" ],
    "phone" : [ "+886-9-2872-0711" ],
    "admin_contacts" : [ "JL6393-AP" ],
    "tech_contacts" : [ "JL6393-AP" ],
    "remarks" : [ "(hid:JL5834-TW)" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2026-11-11",
    "source" : "APNIC",
    "addressCountry" : "TAIWAN"
  } ],
  "technical_contacts" : [ {
    "handle" : "TR662-AP",
    "name" : "TWNIC ROLE-LAZCO",
    "address" : [ "Lazco Corporation", "6 F.-4, No. 26, Sec. 2, Minquan E. Rd., Zhongshan Dist., Taipei City 104425, Taiwan (R.O.C.)", "Taipei City" ],
    "street" : "Sec. 2 Minquan E. Rd. Zhongshan Dist.",
    "city" : "R.o.c. Taipei City",
    "zip_code" : "104425",
    "country" : "TW",
    "email" : [ "haco@lazco.tw" ],
    "abuse_mailbox" : [ "haco@lazco.tw" ],
    "phone" : [ "+886-9-2872-0711" ],
    "admin_contacts" : [ "JL6393-AP" ],
    "tech_contacts" : [ "JL6393-AP" ],
    "remarks" : [ "(hid:JL5834-TW)" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2026-11-11",
    "source" : "APNIC",
    "addressCountry" : "TAIWAN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "TR662-AP",
    "name" : "TWNIC ROLE-LAZCO",
    "address" : [ "Lazco Corporation", "6 F.-4, No. 26, Sec. 2, Minquan E. Rd., Zhongshan Dist., Taipei City 104425, Taiwan (R.O.C.)", "Taipei City" ],
    "street" : "Sec. 2 Minquan E. Rd. Zhongshan Dist.",
    "city" : "R.o.c. Taipei City",
    "zip_code" : "104425",
    "country" : "TW",
    "email" : [ "haco@lazco.tw" ],
    "abuse_mailbox" : [ "haco@lazco.tw" ],
    "phone" : [ "+886-9-2872-0711" ],
    "admin_contacts" : [ "JL6393-AP" ],
    "tech_contacts" : [ "JL6393-AP" ],
    "remarks" : [ "(hid:JL5834-TW)" ],
    "mnt_by" : [ "MAINT-TW-TWNIC" ],
    "date_updated" : "2026-11-11",
    "source" : "APNIC",
    "addressCountry" : "TAIWAN"
  } ]
}

Peers

AS Number	Description	Country
AS131645	KLICKKLACK CO., LTD.	TW
AS32595	Liberally Network, LLC	US
AS131147	Taiwan Li Run Ltd.	TW
AS10133	Chief Telecom Inc.	TW
AS9505	Chunghwa Telecom Co., Ltd.	TW
AS131651	Lazco Corporation	TW
AS14537	Continent 8 LLC	US
AS215248	Bastiaan Mathijs Brink	NL
AS18046	DongFong Technology Co. Ltd.	TW
AS215993	LIU AN LUN	TW
AS3856	Packet Clearing House, Inc.	US
AS16509	Amazon.com, Inc.	US
AS9264	The most preeminent academic institute in Taiwan, the Republic of China	TW
AS38856	Walks Cloud Inc.	TW
AS714	Apple Inc.	US
AS207529	NYANLOLI LTD	GB
AS38841	kbro CO. Ltd.	TW
AS14447	Infinitron Internet LLC	US
AS24429	Zhejiang Taobao Network Co.,Ltd	CN
AS403168	Sun Digital Dev LLC	US
AS204844	NCSE NETWORK LTD	GB
AS63900	ZUSO Generation Co., Ltd.	TW
AS9244	Diyixian.com Limited	TW
AS17415	Ming Yi Tea Farm	TW
AS10099	China Unicom Hong Kong Operations Limited	HK
AS60326	0xDEADBEEF LTD	SC
AS134823	Sky Digital Co., Ltd.	TW
AS142046	1033 Network Information Co.	TW
AS198954	JIAN HUI EN	TW
AS131638	ZUSO Generation Co., Ltd.	TW
AS131624	Dowtek Corporation	TW
AS6507	Riot Games, Inc	US
AS214084	CHUN HSIANG HSIEH	TW
AS138915	Kaopu Cloud HK Limited	HK
AS152615	Chummy Technology Ltd.	TW
AS27523	Kawaii Networks LLC	US
AS215934	XU JIA QIAN	TW
AS42473	ANEXIA Internetdienstleistungs GmbH	AT
AS15412	Global Cloud Xchange	GB
AS18422	Industrial Technology Research Institute	TW
AS218985	YU WANG	CN
AS216123	ZHU YUAN JIANG	TW
AS204508	Gatterer Manuel trading as MLGT	IT
AS30114	Decima LLC	US
AS17408	Maintain by Chief Telecom	TW
AS32787	Akamai Technologies, Inc.	US
AS131610	Dowtek Corporation	TW
AS58807	China Mobile International Limited	HK
AS140570	Hong Kong Beecloud System Technology Services Limited	HK
AS215619	RED COKE DEVELOPMENT LTD	GB
AS395596	Infinirc LLC	US
AS207314	CHIU NGAI MAN	HK
AS204463	Xin Zhao	CA
AS18041	Taiwan Digital Streaming Co.	TW
AS213430	HSIANG LI CHAN	TW
AS4780	Digital United Inc.	TW
AS213605	Liu HaoRan	CN
AS17413	Dodo Ltd.	TW
AS204539	Axivora Connect Ltd	GB
AS152619	Very Fast Network LTD	TW

Upstreams

AS Number	Description	Country
AS131657	Hong Da Storage Equipment Co., Ltd.	TW
AS32595	Liberally Network, LLC	US
AS10133	Chief Telecom Inc.	TW
AS6939	Hurricane Electric LLC	US
AS20473	The Constant Company, LLC	US
AS204844	NCSE NETWORK LTD	GB
AS17408	Maintain by Chief Telecom	TW

Downstreams

AS Number	Description	Country
AS131610	Dowtek Corporation	TW
AS131147	Taiwan Li Run Ltd.	TW
AS24381	Infininet Global Pty Ltd	AU
AS131651	Lazco Corporation	TW
AS131624	Dowtek Corporation	TW
AS214084	CHUN HSIANG HSIEH	TW
AS215191	StoneApp Network	TW
AS403050	Sun Digital Dev LLC	US
AS205592	HUANG CHI HAN	TW
AS403167	Sun Digital Dev LLC	US
AS403168	Sun Digital Dev LLC	US
AS197000	Reseaux IP Europeens Network Coordination Centre RIPE NCC	NL
AS197537	WISDOM CLOUD INTERNET TECHNOLOGY PTE. LTD.	SG
AS213428	CHIEH SHENG LIN	TW