AS Name
TEIN2-NORTH-AP
Org Name
Trans-Eurasia Information Network (TEIN2) - North
Registry Region
China
Looking Glass
IPv4Prefixes

2

IPv6Prefixes

2

IPv4 NUMs

4,096

IPv6 NUMs(/64)

4,294,967,296

4,096 IPv4 Addresses
CIDR Description IP Num
202.179.240.0/21 TEIN2-CERNET Trans-Eurasia Information Network (TEIN2) 2048
202.179.240.0/20 TEIN2-CERNET Trans-Eurasia Information Network (TEIN2) 4096
CIDR Description IP NUMs(prefix /64)
2001:254::/33 CERNET2-ZJETC6 Educational Technology Center of Zhejiang Province 2147483648
2001:254::/32 CERNET2-ZJETC6 Educational Technology Center of Zhejiang Province 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS24287 TEIN2-JP - National Institute of Informatics, JP Japan 256 65,536 IPv4 IPv4 IPv6 IPv6
AS24490 TEIN2-SG-AP - Trans-Eurasia Information Network (TEIN2) - SG, CN China 2,048 2,147,483,648 IPv4 IPv4 IPv6 IPv6
AS22388 TRANSPAC - Indiana University, US United States 256 65,536 IPv4 IPv4 IPv6 IPv6
AS23911 CNGI-BJIX-AS-AP - China Next Generation Internet Beijing IX, CN China 512 4,295,032,832 IPv4 IPv4
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS9821 DOST-PH-AP - Advanced Science and Technology Institute, PH Philippines 10,240 4,294,967,296 IPv4 IPv4
AS23911 CNGI-BJIX-AS-AP - China Next Generation Internet Beijing IX, CN China 512 4,295,032,832 IPv4 IPv4
AS24175 VINAREN-AS-AP - National Agency for Scientific and Technological Information, VN Viet Nam 8,192 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS24287 TEIN2-JP - National Institute of Informatics, JP Japan 256 65,536 IPv4 IPv4
AS24475 THAIREN-TRANSIT-AS-AP - Office of Info.Tech. Admin. for Educational Development, TH Thailand 256 65,536 IPv4 IPv4
AS24490 TEIN2-SG-AP - Trans-Eurasia Information Network (TEIN2) - SG, CN China 2,048 2,147,483,648 IPv4 IPv4 IPv6 IPv6
AS137207 JUCC-AS-AP - Joint Universities Computer Centre Limited, HK Hong Kong 1,024 4,294,967,296 IPv4 IPv4
AS9270 APAN-KR-AS - National Infomation Society Agency, KR Republic of Korea 18,432 4,294,967,296 IPv4 IPv4
as-block:       AS23552 - AS24575
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
remarks:        AS23889 has been transfered to AfriNIC
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2009-09-29T06:04:16Z
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:       AS24431 - AS24517
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:  2008-09-04T06:40:26Z
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



aut-num:        AS24489
as-name:        TEIN2-NORTH-AP
descr:          Trans-Eurasia Information Network (TEIN2) - North
descr:          China Education and Research Network Center
descr:          Tsinghua University, Beijing 100084, China
country:        CN
import:         from AS4538
                action pref=10;
                accept ANY
import:         from AS7660
                action pref=10;
                accept ANY
import:         from AS20965
                action pref=10;
                accept ANY
export:         to AS4538
                announce AS24489
export:         to AS7660
                announce AS24489
export:         to AS20965
                announce AS24489
default:        to AS20965
                action pref=10;
                networks ANY
admin-c:        CER-AP
tech-c:         CER-AP
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-lower:      MAINT-CERNET-AP
last-modified:  2019-06-09T22:41:44Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-11-26T03:14:01Z
source:         APNIC

role:           CERNET Helpdesk
address:        Room 224, Main Building
address:        Tsinghua University
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
remarks:        [email protected]
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
remarks:        Point of Contact for admin-c
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-06T00:10:30Z
source:         APNIC