Summary

NetName
CDR-CERNET
OrgName
China Education and Research Network
CIDR
RIR

APNIC

Country

Status

ALLOCATED PORTABLE

RegDate

Updated

2020-09-03T09:16:07Z

Whois

inetnum:        223.128.0.0 - 223.129.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:07Z
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] is invalid
mnt-by:         MAINT-CERNET-AP
last-modified:  2023-12-13T13:07:11Z
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

CIDR

223.128.128.0/24 223.128.129.0/24 223.128.130.0/24 223.128.131.0/24
223.128.133.0/24 223.128.134.0/24 223.128.135.0/24 223.128.136.0/24
223.128.138.0/24 223.128.139.0/24 223.128.140.0/24 223.128.141.0/24
223.128.143.0/24 223.128.144.0/24 223.128.145.0/24 223.128.146.0/24
223.128.148.0/24 223.128.149.0/24 223.128.150.0/24 223.128.151.0/24
223.128.153.0/24 223.128.154.0/24 223.128.155.0/24 223.128.156.0/24
223.128.158.0/24 223.128.159.0/24 223.128.160.0/24 223.128.161.0/24
223.128.163.0/24 223.128.164.0/24 223.128.165.0/24 223.128.166.0/24
223.128.168.0/24 223.128.169.0/24 223.128.170.0/24 223.128.171.0/24
223.128.173.0/24 223.128.174.0/24 223.128.175.0/24 223.128.176.0/24
223.128.178.0/24 223.128.179.0/24 223.128.180.0/24 223.128.181.0/24
223.128.183.0/24 223.128.184.0/24 223.128.185.0/24 223.128.186.0/24
223.128.188.0/24 223.128.189.0/24 223.128.190.0/24 223.128.191.0/24
223.128.193.0/24 223.128.194.0/24 223.128.195.0/24 223.128.196.0/24
223.128.198.0/24 223.128.199.0/24 223.128.200.0/24 223.128.201.0/24
223.128.203.0/24 223.128.204.0/24 223.128.205.0/24 223.128.206.0/24
223.128.208.0/24 223.128.209.0/24 223.128.210.0/24 223.128.211.0/24
223.128.213.0/24 223.128.214.0/24 223.128.215.0/24 223.128.216.0/24
223.128.218.0/24 223.128.219.0/24 223.128.220.0/24 223.128.221.0/24
223.128.223.0/24 223.128.224.0/24 223.128.225.0/24 223.128.226.0/24
223.128.228.0/24 223.128.229.0/24 223.128.230.0/24 223.128.231.0/24
223.128.233.0/24 223.128.234.0/24 223.128.235.0/24 223.128.236.0/24
223.128.238.0/24 223.128.239.0/24 223.128.240.0/24 223.128.241.0/24
223.128.243.0/24 223.128.244.0/24 223.128.245.0/24 223.128.246.0/24
223.128.248.0/24 223.128.249.0/24 223.128.250.0/24 223.128.251.0/24
223.128.253.0/24 223.128.254.0/24 223.128.255.0/24