AS Name
CNGI-BJ-IX2-AS-AP
Org Name
CERNET2 IX at Tsinghua University
Registry Region
China
Looking Glass
IPv4Prefixes

16

IPv6Prefixes

30

IPv4 NUMs

398,592

IPv6 NUMs(/64)

4,296,605,696

398,592 IPv4 Addresses
CIDR Description IP Num
58.207.0.0/16 COLBJ-CN ~{PBR5Nq7"U92?~}-~{!0=LS}MxV1M(35!1OnD?~}-~{11>)5XGx8_P#~} 65536
59.66.0.0/16 TSINGHUA-CN ~{Ge;*4sQ'~} 65536
101.5.0.0/16 TSINGHUA-CN ~{Ge;*4sQ'~} 65536
101.6.0.0/16 TSINGHUA-CN ~{Ge;*4sQ'~} 65536
183.172.0.0/24 TSINGHUA-CN ~{Ge;*4sQ'~} 256
183.172.0.0/16 TSINGHUA-CN ~{Ge;*4sQ'~} 65536
183.172.0.0/15 TSINGHUA-CN ~{Ge;*4sQ'~} 131072
183.173.0.0/24 TSINGHUA-CN ~{Ge;*4sQ'~} 256
183.173.0.0/17 TSINGHUA-CN ~{Ge;*4sQ'~} 32768
183.173.0.0/16 TSINGHUA-CN ~{Ge;*4sQ'~} 65536
202.38.109.0/24 CERNET-CN China Education and Research Network 256
202.38.112.0/24 CERNET-CN China Education and Research Network 256
202.112.0.0/24 CERBKB-CN China Education and Research Network Backbone 256
202.112.43.0/24 SHCOMP-CN CERNET super computer center 256
202.112.44.0/24 SHCOMP-CN CERNET super computer center 256
202.205.16.0/20 BJBI-CN ~{11>)9c2%Q'T:~} 4096
CIDR Description IP NUMs(prefix /64)
2001:250:2::/48 CERNET-CN-20000426 CERNET IPv6 Backbone 65536
2001:250:209::/48 CAU6-CERNET ~{VP9zE)R54sQ'~} 65536
2001:250:219::/48 CERNET-CN-20000426 CERNET IPv6 Backbone 65536
2001:250:21a::/48 CERNET-CN-20000426 CERNET IPv6 Backbone 65536
2001:250:227::/48 CERNET-CN-20000426 CERNET IPv6 Backbone 65536
2001:250:23b::/48 CERNET-CN-20000426 CERNET IPv6 Backbone 65536
2001:250:801::/48 HBU6-CERNET ~{:S114sQ'~} 65536
2001:250:803::/48 CERNET-CN-20000426 CERNET IPv6 Backbone 65536
2001:250:804::/48 CERNET-CN-20000426 CERNET IPv6 Backbone 65536
2001:250:80b::/48 CERNET-CN-20000426 CERNET IPv6 Backbone 65536
2001:da8:a0::/48 CER2BKB6-CERNET2 ~{9z<RMxBgVPPD~} 65536
2001:da8:211::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:21a::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:21f::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:222::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:225::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:232::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:23d::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:243::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:24c::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:24d::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:266::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:da8::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2001:da8:a400::/48 CNGI-CERNET2-CN-20031110 China Next Generation Internet CERNET2 65536
2402:7d80:240::/48 CAICTNET Chinese Academy of Telecommunication Research 65536
240c:c0a8::/34 CERNET China Education and Research Network 1073741824
240c:c0a8:4000::/34 CERNET China Education and Research Network 1073741824
240c:c0a8:8000::/34 CERNET China Education and Research Network 1073741824
240c:c0a8:8000::/33 CERNET China Education and Research Network 2147483648
240c:c0a8:c000::/34 CERNET China Education and Research Network 1073741824
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN China 17,171,712 16,842,752 IPv4 IPv4 IPv6 IPv6
AS23910 CNGI-CERNET2-AS-AP - China Next Generation Internet CERNET2, CN China 5,120 17,609,365,913,600 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS9405 TPS-CN-AS - Test platform Service Center, CN China 1,280 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS24302 CRIS-CERNET-AS - China Education and Research Network (CERNET), CN China 256 65,536 IPv4 IPv4 IPv6 IPv6
AS45576 CERNET2-TSINGHUA6-AS-AP - Tsinghua University, CN China 397,312 4,294,967,296 IPv6 IPv6
AS58448 AP-CONAC-AS-AP - CONAC (China Organizational Name Administration Center), CN China 1,024 524,288 IPv6 IPv6
AS58811 AP-CONAC-AS-AP - CONAC (China Organizational Name Administration Center), CN China 1,536 327,680 IPv6 IPv6
IP Address Domain NUMs Domains
58.207.252.11 1 www.pbb.edu.cn
58.207.252.18 1 itss.cernet.com
58.207.255.38 4 buaa.pbb.edu.cn
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:       AS24298 - AS24400
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:        AS24348
as-name:        CNGI-BJ-IX2-AS-AP
descr:          CERNET2 IX at Tsinghua University
descr:          CERNET Center
descr:          Beijing 100084, China
country:        CN
import:         from AS23910 action pref=10; accept ANY
import:         from AS4134 action pref=10; accept ANY
import:         from AS4837 action pref=10; accept ANY
import:         from AS7497 action pref=10; accept ANY
import:         from AS9808 action pref=10; accept ANY
import:         from AS9800 action pref=10; accept ANY
import:         from AS9394 action pref=10; accept ANY
import:         from AS4538 action pref=10; accept ANY
import:         from AS23912 action pref=10; accept ANY
import:         from AS4789 action pref=10; accept ANY
import:         from AS9407 action pref=10; accept ANY
import:         from AS17735 action pref=10; accept ANY
import:         from AS9405 action pref=10; accept ANY
import:         from AS23911 action pref=10; accept ANY
export:         to AS23910 announce ANY
export:         to AS4134 announce ANY
export:         to AS4837 announce ANY
export:         to AS7497 announce ANY
export:         to AS9808 announce ANY
export:         to AS9800 announce ANY
export:         to AS9394 announce ANY
export:         to AS4538 announce ANY
export:         to AS23912 announce ANY
export:         to AS4789 announce ANY
export:         to AS9407 announce ANY
export:         to AS17735 announce ANY
export:         to AS9405 announce ANY
export:         to AS23911 announce ANY
default:        to AS23910 action pref=10; networks ANY
remarks:        Multihome member of CERNET
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:29Z
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
remarks:        [email protected] was validated on 2021-03-25
mnt-by:         MAINT-CERNET-AP
last-modified:  2021-03-25T02:51:21Z
source:         APNIC

role:           ABUSE CERNETAP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
country:        ZZ
phone:          +86-10-62784301
e-mail:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2020-09-03T09:15:57Z
source:         APNIC

role:           CERNET Helpdesk
address:        CERNET Center
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
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC