131609 YUANCHENG-AS-TW Yuan Cheng Co., Ltd., TW
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS13335 CLOUDFLARENET - Cloudflare, Inc., US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 66237 AS131609 ORIGIN Originate: 256 /24.00 Transit: 0 /0.00 YUANCHENG-AS-TW Yuan Cheng Co., Ltd., 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 % 52393 AS131609 YUANCHENG-AS-TW Yuan Cheng Co., Ltd., TW 1 0 0 1 0 0.00% Prefix AS Path Aggregation Suggestion 45.204.133.0/24 4608 13335 131609
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS131609 1 More Specifics 1 Total Advertisements YUANCHENG-AS-TW Yuan Cheng Co., Ltd., TW
45.204.133.0/24 45.192.0.0/12
whois: 402332
IANA has recorded AS131609 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS131609\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 '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 'AS131609'
% Abuse contact for 'AS131609' is 'sean@yuancheng.app'
aut-num: AS131609
as-name: YUANCHENG-AS-TW
descr: Yuan Cheng Co., Ltd.
descr: 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417 , Taiwan (R.O.C.)
country: TW
admin-c: TR660-AP
tech-c: TR660-AP
mnt-by: MAINT-TW-TWNIC
mnt-irt: IRT-YUANCHENG-TW
import: from AS134823 action pref=100; accept ANY
import: from AS10133 action pref=99; accept ANY
export: to AS134823 announce AS131609
export: to AS10133 announce AS131609
default: to AS134823 action pref=10; networks ANY
last-modified: 2026-03-09T02:14:33Z
source: APNIC
irt: IRT-YUANCHENG-TW
address: Yuan Cheng Co., Ltd.
address: 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417, Taiwan (R.O.C.)
phone: +886937064595
e-mail: sean@yuancheng.app
abuse-mailbox: sean@yuancheng.app
admin-c: TR660-AP
tech-c: TR660-AP
remarks: (oid:YUANCHENG)
auth: # Filtered
last-modified: 2026-02-10T06:59:33Z
source: APNIC
mnt-by: MAINT-TW-TWNIC
role: TWNIC ROLE-YUANCHENG
nic-hdl: TR660-AP
address: Yuan Cheng Co., Ltd.
address: 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417, Taiwan (R.O.C.)
country: TW
phone: +886937064595
e-mail: sean@yuancheng.app
abuse-mailbox: sean@yuancheng.app
admin-c: SY3193-AP
tech-c: SY3193-AP
remarks: (hid:SY2602100A-TW)
last-modified: 2026-02-10T06:59:27Z
source: APNIC
mnt-by: MAINT-TW-TWNIC
% 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 1.88.48 (WHOIS-AU4)