AS Name Org Name IPv4Prefixes IPv6Prefixes IPv4 NUMs IPv6 NUMs(/64) Registry Region Looking Glass
GBTC-TW Great Taipei Broadband Company Ltd. 9 0 12,288 0 Taiwan
12,288 IPv4 Addresses
CIDR Description IP Num
61.65.192.0/20 GTBC-NET country: TW Great Taipei Broadband Co.,Ltd 4096
61.65.192.0/19 GTBC-NET country: TW Great Taipei Broadband Co.,Ltd 8192
61.65.208.0/20 GTBC-NET country: TW Great Taipei Broadband Co.,Ltd 4096
61.67.0.0/22 GTBC-NET Great Taipei Broadband Co.,Ltd 1024
61.67.0.0/20 GTBC-NET Great Taipei Broadband Co.,Ltd 4096
61.67.4.0/22 GTBC-NET Great Taipei Broadband Co.,Ltd 1024
61.67.8.0/24 GTBC-NET Great Taipei Broadband Co.,Ltd 256
61.67.8.0/22 GTBC-NET Great Taipei Broadband Co.,Ltd 1024
61.67.12.0/22 GTBC-NET Great Taipei Broadband Co.,Ltd 1024
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd., TW Taiwan 702,720 279,172,874,240 IPv4 IPv4
AS18046 DONGFONG-TW DongFong Technology Co. Ltd., TW Taiwan 66,560 4,294,967,296 IPv4 IPv4
IP Address Domain NUMs Domains
61.67.4.5 1 mrtg.gtbc.com.tw
61.67.4.55 4 gtbc.com.tw
61.67.6.88 4 ns.mmarco.idv.tw
61.67.6.193 1 mail07.masterlink.com.tw
61.67.6.194 1 mail07.masterlink.com.tw
61.67.6.195 1 mail07.masterlink.com.tw
61.67.6.196 1 mail07.masterlink.com.tw
61.67.6.200 3 dl_pts.masterlink.com.tw
61.67.6.202 1 eopen.masterlink.com.tw
61.67.6.204 1 feopen.masterlink.com.tw
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:         [email protected]
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         [email protected]
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC


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:        4F-2, No. 9 Sec. 2, Roosevelt Rd.,
address:        Taipei, Taiwan, 100
country:        TW
phone:          +886-2-23411313
fax-no:         +886-2-23968871
e-mail:         [email protected]
admin-c:        ck373-AP
tech-c:         TW922-AP
tech-c:         NS10-AP
nic-hdl:        TWA2-AP
notify:         [email protected]
mnt-by:         MAINT-TW-TWNIC
last-modified:  2019-05-23T08:05:03Z
source:         APNIC



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
notify:         [email protected]
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-TWNIC-AP
last-modified:  2016-10-17T00:33:12Z
source:         apnic

irt:            IRT-TWNIC-AP
address:        Taipei, Taiwan, 100
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TWA2-AP
tech-c:         TWA2-AP
auth:           # Filtered
remarks:        Please note that TWNIC is not an ISP and is not empowered
remarks:        to investigate complaints of network abuse.
mnt-by:         MAINT-TW-TWNIC
last-modified:  2015-10-08T07:58:24Z
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:         [email protected]
nic-hdl:        TK223-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:29:21Z
source:         APNIC