18413 GBTC-TW - Great Taipei Broadband Company Ltd., TW
Adjacency: 3 Upstream: 3 Downstream: 0
Upstream Adjacent AS list
AS9919 NCIC-TW - New Century InfoComm Tech Co., Ltd., TW
AS9924 TFN-TW - Taiwan Fixed Network, Telco and Network Service Provider., TW
AS18046 DONGFONG-TW - DongFong Technology Co. Ltd., TW
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 8903 AS18413 ORIGIN Originate: 12800 /18.36 Transit: 0 /0.00 GBTC-TW - Great Taipei Broadband Company 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 % 12334 AS18413 GBTC-TW - Great Taipei Broadband Company Ltd. 8 4 1 5 3 37.50% Prefix AS Path Aggregation Suggestion 61.65.192.0/20 4608 7575 3491 9924 18413 61.67.0.0/20 4608 7575 3491 9924 18413 61.67.0.0/21 4777 2497 4780 9919 18413 + Announce - aggregate of 61.67.0.0/22 (4777 2497 4780 9919 18413) and 61.67.4.0/22 (4777 2497 4780 9919 18413) 61.67.0.0/22 4777 2497 4780 9919 18413 - Withdrawn - aggregated with 61.67.4.0/22 (4777 2497 4780 9919 18413) 61.67.4.0/22 4777 2497 4780 9919 18413 - Withdrawn - aggregated with 61.67.0.0/22 (4777 2497 4780 9919 18413) 61.67.4.0/24 4608 7575 9002 18046 18413 61.67.8.0/22 4608 7575 3491 9924 18413 - Withdrawn - matching aggregate 61.67.0.0/20 4608 7575 3491 9924 18413 61.67.9.0/24 4777 2497 4780 9919 18413 61.67.12.0/22 4608 7575 3491 9924 18413 - Withdrawn - matching aggregate 61.67.0.0/20 4608 7575 3491 9924 18413
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS18413 8 More Specifics 8 Total Advertisements GBTC-TW - Great Taipei Broadband Company Ltd., TW
61.65.192.0/20 61.64.0.0/15
61.67.0.0/20 61.67.0.0/18
61.67.0.0/22 61.67.0.0/18
61.67.4.0/22 61.67.0.0/18
61.67.4.0/24 61.67.0.0/18
61.67.8.0/22 61.67.0.0/18
61.67.9.0/24 61.67.0.0/18
61.67.12.0/22 61.67.0.0/18
whois: 402603
IANA has recorded AS18413 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS18413\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS17653 - AS18431'
as-block: AS17653 - AS18431
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: 2019-01-08T23:19:07Z
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 'AS18410 - AS18429'
as-block: AS18410 - AS18429
descr: TWNIC-TW-AS-BLOCK8
remarks: These AS numbers are further assigned by TWNIC
remarks: to TWNIC members
admin-c: TWA2-AP
tech-c: TWA2-AP
mnt-by: MAINT-TW-TWNIC
mnt-lower: MAINT-TW-TWNIC
last-modified: 2008-09-04T06:40:26Z
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 'AS18413'
% Abuse contact for 'AS18413' is 'leoxue@gtbc.com.tw'
aut-num: AS18413
as-name: GBTC-TW
descr: Great Taipei Broadband Company Ltd.
descr: Internet Service Provider
descr: 8F, 33, Lane 11, Kwang Fu N. Rd.,Taipei,Taiwan 105,R.O.C.
country: TW
import: from AS4780 action pref=200; accept ANY
import: from AS4747 action pref=100; accept AS413
import: from AS4747 action pref=300; accept ANY
import: from AS9416 action pref=400; accept ANY
export: to AS4780 announce as18413
export: to AS4747 announce as18413
export: to AS9416 announce as18413
default: to AS4780 action pref=100;networks ANY
admin-c: TK223-AP
admin-c: TK223-AP
tech-c: TK223-AP
abuse-c: AT939-AP
notify: kao@gtbc.com.tw
mnt-by: MAINT-TW-TWNIC
mnt-irt: IRT-GTBC-TW
last-modified: 2025-11-06T09:25:34Z
source: APNIC
irt: IRT-GTBC-TW
address: Great Taipei Broadband Co.,Ltd
address: 1F, 33, Lane 11, Kwang Fu N. Rd. Taipei
address: Taipei
phone: +886-2-3765-1166 ext. 301
e-mail: leoxue@gtbc.com.tw
abuse-mailbox: leoxue@gtbc.com.tw
admin-c: TR386-AP
tech-c: TR386-AP
remarks: (oid:GTBC)
mnt-by: MAINT-TW-TWNIC
last-modified: 2025-11-06T07:19:41Z
source: APNIC
auth: # Filtered
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: Terry Kao
address: Great Taipei Broadband Co.,Ltd
address: 8F, 33, Lane 11, Kwang Fu N. Rd.
address: Taipei Taiwan 105
country: TW
phone: +886-2-3765-1166
fax-no: +886-2-3765-1414
e-mail: kao@gtbc.com.tw
nic-hdl: TK223-AP
mnt-by: MAINT-TW-TWNIC
last-modified: 2008-09-04T07:29:21Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)