AS Name
NCTU-TW
Org Name
National Chiao Tung University,
Registry Region
Taiwan
Looking Glass
IPv4Prefixes

33

IPv6Prefixes

1

IPv4 NUMs

401,408

IPv6 NUMs(/64)

4,294,967,296

401,408 IPv4 Addresses
CIDR Description IP Num
120.104.0.0/16 TANET-NET Ministry of Education Computer Center 65536
120.105.0.0/16 TANET-NET Ministry of Education Computer Center 65536
120.106.0.0/18 TANET-NET Ministry of Education Computer Center 16384
120.106.64.0/21 TANET-NET Ministry of Education Computer Center 2048
120.106.72.0/21 TANET-NET Ministry of Education Computer Center 2048
120.106.80.0/20 TANET-NET Ministry of Education Computer Center 4096
120.106.96.0/20 TANET-NET Ministry of Education Computer Center 4096
120.106.112.0/21 TANET-NET Ministry of Education Computer Center 2048
120.106.120.0/24 TANET-NET Ministry of Education Computer Center 256
120.106.121.0/24 TANET-NET Ministry of Education Computer Center 256
120.106.122.0/24 TANET-NET Ministry of Education Computer Center 256
120.106.123.0/24 TANET-NET Ministry of Education Computer Center 256
120.106.124.0/24 TANET-NET Ministry of Education Computer Center 256
120.106.125.0/24 TANET-NET Ministry of Education Computer Center 256
120.106.126.0/24 TANET-NET Ministry of Education Computer Center 256
120.106.128.0/18 TANET-NET Ministry of Education Computer Center 16384
120.106.192.0/18 TANET-NET Ministry of Education Computer Center 16384
140.113.0.0/24 TANET Taiwan Academic Network 256
140.113.0.0/16 TANET Taiwan Academic Network 65536
140.126.0.0/16 TANET-BNETA imported inetnum object for MOEC 65536
163.19.0.0/16 TANET-B imported inetnum object for MOEC 65536
163.28.64.0/24 TANET-B imported inetnum object for MOEC 256
203.64.172.0/22 TANET Taiwan Academic Network 1024
203.64.176.0/21 TANET Taiwan Academic Network 2048
203.64.184.0/22 TANET Taiwan Academic Network 1024
203.68.172.0/22 TANET Taiwan Academic Network 1024
203.71.213.0/24 TANET Taiwan Academic Network 256
203.72.71.0/24 TWNIC-TW Taiwan Network Information Center 256
203.72.72.0/24 TWNIC-TW Taiwan Network Information Center 256
210.60.55.0/24 TANET Taiwan Academic Network 256
210.60.166.0/23 TANET Taiwan Academic Network 512
210.60.168.0/22 TANET Taiwan Academic Network 1024
210.240.200.0/23 TANET Taiwan Academic Network 512
CIDR Description IP NUMs(prefix /64)
2001:f18::/32 TWNCTU-NET National Chiao Tung University 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS3462 HINET - Chunghwa Telecom Co., Ltd., TW Taiwan 12,270,848 8,808,977,924,096 IPv4 IPv4
AS4780 SEEDNET - Digital United Inc., TW Taiwan 1,577,216 279,172,874,240 IPv4 IPv4
AS10133 TPIX-AS-TW - Chief Telecom Inc., TW Taiwan 512 4,294,967,296 IPv4 IPv4
AS18185 NTCU-AS-TW - 4F, No.114, Sec.1, Chung-Shiao W. Road, TW Taiwan 25,600 0 IPv4 IPv4 IPv6 IPv6

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
Taiwan TPIX-TW - Taipei Internet Exchange 203.163.222.33 1 Gbps 2016-03-14 21:10:33

Private Peering Facilities

Country/Region Name City Website Updated
Chief LY Building Taipei Taipei http://www.chief.com.tw 2016-03-14 20:57:05
CHT Taipei Banqiao IDC New Taipei City http://www.idc.hinet.net/chtidc_eng/ 2019-07-02 07:34:47
IP Address Domain NUMs Domains
120.104.0.1 51 web.ckjh.hc.edu.tw
120.104.0.3 1 special.hc.edu.tw
120.104.0.4 2 www.chjh.hc.edu.tw
120.104.0.81 1 library.cdjh.hc.edu.tw
120.104.0.85 1 semester.hhjh.hc.edu.tw
120.104.0.87 1 cur.cksh.hc.edu.tw
120.104.13.1 1 hcvs.hc.edu.tw
120.104.13.6 1 www.hcvs.hc.edu.tw
120.104.13.8 1 web.hcvs.hc.edu.tw
120.104.13.24 1 lib.hcvs.hc.edu.tw
as-block:       AS9216 - AS10239
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:  2009-05-19T07:00:23Z
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:       AS9915 - AS9924
descr:          TWNIC-TW-AS-BLOCK
remarks:        These AS numbers are further assigned by TWNIC
remarks:        to TWNIC members
admin-c:        TWA2-AP
tech-c:         TWA2-AP
mnt-by:         APNIC-HM
mnt-lower:      MAINT-TW-TWNIC
last-modified:  2017-06-29T23:49:13Z
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:         [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:  2020-01-02T03:54:20Z
source:         APNIC



aut-num:        AS9916
as-name:        NCTU-TW
descr:          National Chiao Tung University,
descr:          Hsinchu, Taiwan
country:        TW
import:         from AS3462
                action pref=10;
                accept AS3462
import:         from AS4780
                action pref=20;
                accept AS4780
import:         from AS7482
                action pref=20;
                accept AS7482
import:         from AS1659
                action pref=20;
                accept AS1659
import:         from AS7539
                action pref=20;
                accept AS7539
import:         from AS9415
                action pref=20;
                accept AS9415
import:         from AS9414
                action pref=20;
                accept AS9414
import:         from AS9310
                action pref=20;
                accept AS9310
export:         to AS3462
                announce AS9916
export:         to AS4780
                announce AS9916
export:         to AS7482
                announce AS9916
export:         to AS1659
                announce AS9916
export:         to AS7539
                announce AS9916
export:         to AS9415
                announce AS9916
export:         to AS9414
                announce AS9916
export:         to AS9310
                announce AS9916
default:        to AS1659
                action pref=5;
                networks ANY
default:        to AS7539
                action pref=10;
                networks ANY
admin-c:        LTC10-AP
tech-c:         CCS8-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-TWNIC-AP
last-modified:  2015-12-01T22:11:59Z
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:         Chen Chang Sheng
address:        National Chiao Tung University,
address:        No. 1001, Ta Hsueh Rd.,
address:        Hsinchu, Taiwan
country:        TW
phone:          +886 3 573 1721
fax-no:         +886 3 571 4031
e-mail:         [email protected]
nic-hdl:        CCS8-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:29:15Z
source:         APNIC

person:         Liu Ta Chun
address:        National Chiao Tung University,
address:        No. 1001, Ta Hsueh Rd.,
address:        Hsinchu, Taiwan
country:        TW
phone:          +886 3 573 1905
fax-no:         +886 3 571 4031
e-mail:         [email protected]
nic-hdl:        LTC10-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:29:15Z
source:         APNIC