ASN Lookup Tool

Data Communication Business Group, twnic.net.tw TW TW 10 Routes

AS Data

AS131660

AS131660Data Communication Business Group,

AS Number 131660
AS Name CHTCDN
Organization Data Communication Business Group,(CHTCDN)
Country TW
Website twnic.net.tw
Number of IPv4 Routes 5
Number of IPv6 Routes 5
ASN type BUSINESS
Registry APNIC
Date Allocated N/A

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Use ASN data for AS131660 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
203.74.220.0/24 256
2001:b000:590::/48 ~1×10²⁴
2001:b000:570::/48 ~1×10²⁴
2001:b000:591::/48 ~1×10²⁴
168.95.245.0/24 256
203.74.221.0/24 256
2001:b000:571::/48 ~1×10²⁴
203.74.222.0/24 256
168.95.246.0/24 256
2001:b000:594::/48 ~1×10²⁴

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:        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 'AS131641 - AS131683'

as-block:       AS131641 - AS131683
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 'AS131660'

% Abuse contact for 'AS131660' is 'abuse@hinet.net'

aut-num:        AS131660
as-name:        CHTCDN
descr:          Data Communication Business Group,
descr:          Chunghwa Telecom Co.,Ltd.
descr:          No.21, Sec.1, Xinyi Rd., Taipei City
descr:          10048, Taiwan
country:        TW
import:         from AS7481 action pref=100; accept ANY AND NOT {0.0.0.0/0}
import:         from AS3462 action pref=80; accept ANY AND NOT {0.0.0.0/0}
export:         to AS7481 announce AS131660
export:         to AS3462 announce AS131660
default:        to AS3462 action pref=80; networks ANY
admin-c:        HN27-AP
tech-c:         HN27-AP
abuse-c:        AT939-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-HINET-AP
last-modified:  2025-11-07T01:10:43Z
source:         APNIC

irt:            IRT-HINET-AP
address:        Chunghwa Telecom Co.,Ltd.
address:        No.21-3, Sec. 1, Xinyi Rd., Taipei 10048, Taiwan, R.O.C.
address:        Taipei
phone:          +886-2-2322-3495
e-mail:         network-adm@hinet.net
abuse-mailbox:  abuse@hinet.net
admin-c:        TR391-AP
tech-c:         TR391-AP
remarks:        (oid:HINET)
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:20:07Z
source:         APNIC

role:           ABUSE TWNICAP
country:        ZZ
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone:          +000000000
e-mail:         hostmaster@twnic.tw
admin-c:        TWA2-AP
tech-c:         TWA2-AP
nic-hdl:        AT939-AP
remarks:        Generated from irt object IRT-TWNIC-AP
remarks:        hostmaster@twnic.tw was validated on 2025-05-23
abuse-mailbox:  hostmaster@twnic.tw
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-23T00:02:10Z
source:         APNIC

person:         HINET Network-Adm
address:        CHTD, Chunghwa Telecom Co., Ltd.
address:        No. 21, Sec. 21, Hsin-Yi Rd.,
address:        Taipei Taiwan 100
country:        TW
phone:          +886 2 2322 3495
phone:          +886 2 2322 3442
phone:          +886 2 2344 3007
fax-no:         +886 2 2344 2513
fax-no:         +886 2 2395 5671
e-mail:         network-adm@hinet.net
nic-hdl:        HN27-AP
remarks:        (hid:HN184-TW)
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-08-28T07:34:45Z
source:         APNIC

% Information related to 'AS131072 - AS132095'

as-block:       AS131072 - AS132095
descr:          APNIC 32-bit ASN block
admin-c:        IA55-AP
tech-c:         IH123-AP
mnt-by:         MNT-APJII-ID
mnt-lower:      MNT-APJII-ID
last-modified:  2026-02-25T07:12:54Z
source:         IDNIC

role:           ID-NIC ADMINISTRATORS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
admin-c:        IH288-AP
tech-c:         IH288-AP
nic-hdl:        IA55-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2026-02-25T04:06:45Z
source:         IDNIC

role:           ID-NIC HOSTMASTERS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
remarks:        spam and abuse report : abuse@apjii.or.id
remarks:        technical and routing : support@apjii.or.id
remarks:        administrative request : admin@apjii.or.id
remarks:        IDNIC hostmasters role object
admin-c:        IH1-AP
tech-c:         IH1-AP
nic-hdl:        IH123-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2024-07-10T05:48:59Z
source:         IDNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)

Parsed Whois Response

Peers

AS Number Description Country
AS7481 Data Communication Business Group TW
AS9505 Chunghwa Telecom Co., Ltd. TW
AS3462 Chunghwa Telecom Co., Ltd. TW
AS3462 Data Communication Business Group TW
AS9505 Taiwan Internet Gateway TW
AS9680 HiNet Service Center in U.S.A TW

Upstreams

AS Number Description Country
AS9505 Chunghwa Telecom Co., Ltd. TW
AS3462 Chunghwa Telecom Co., Ltd. TW
AS9680 HiNet Service Center in U.S.A TW

Contacts

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Frequently Asked Questions

ASN AS131660 is an Autonomous System Number used to identify a network for BGP internet routing.
AS131660 is listed under Data Communication Business Group,.
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.