131660 CHTCDN Data Communication Business Group, TW
Adjacency: 3 Upstream: 3 Downstream: 0
Upstream Adjacent AS list
AS3462 HINET Data Communication Business Group, TW
AS9505 TWGATE-AP Taiwan Internet Gateway, TW
AS9680 HINETUSA HiNet Service Center in U.S.A, TW
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 33646 AS131660 ORIGIN Originate: 1280 /21.68 Transit: 0 /0.00 CHTCDN Data Communication Business Group, TW
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 24727 AS131660 CHTCDN Data Communication Business Group, TW 5 2 1 4 1 20.00% Prefix AS Path Aggregation Suggestion 168.95.245.0/24 4777 2516 3462 131660 168.95.246.0/24 4777 2497 3462 131660 203.74.220.0/23 4608 7575 9680 131660 + Announce - aggregate of 203.74.220.0/24 (4608 7575 9680 131660) and 203.74.221.0/24 (4608 7575 9680 131660) 203.74.220.0/24 4608 7575 9680 131660 - Withdrawn - aggregated with 203.74.221.0/24 (4608 7575 9680 131660) 203.74.221.0/24 4608 7575 9680 131660 - Withdrawn - aggregated with 203.74.220.0/24 (4608 7575 9680 131660) 203.74.222.0/24 4608 7575 9505 131660
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS131660 5 More Specifics 5 Total Advertisements CHTCDN Data Communication Business Group, TW
168.95.245.0/24 168.95.0.0/16
168.95.246.0/24 168.95.0.0/16
203.74.220.0/24 203.74.0.0/15
203.74.221.0/24 203.74.0.0/15
203.74.222.0/24 203.74.0.0/15
whois: 402332
IANA has recorded AS131660 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS131660\n % [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 1.88.47 (WHOIS-AU4)