Summary

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

APNIC

Country / Region

Status

ALLOCATED PORTABLE

Abuse

abuse@cernet.edu.cn

Contact

abuse@cernet.edu.cn

helpdesk@cernet.edu.cn

RegDate

Updated

2020-09-03T09:16:12Z

Routing

AS Desc Country / Region IPv4 NUMs IPv6 NUMs
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN China 17177856 17961706979328

Whois

inetnum:        223.2.0.0 - 223.3.255.255
netname:        NJR-CERNET
descr:          China Education and Research Network
descr:          Nanjing 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:  2020-09-03T09:16:12Z
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:         abuse@cernet.edu.cn
abuse-mailbox:  abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn 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:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
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

Graph

CIDR

223.3.0.0/24 223.3.1.0/24 223.3.2.0/24 223.3.3.0/24
223.3.5.0/24 223.3.6.0/24 223.3.7.0/24 223.3.8.0/24
223.3.10.0/24 223.3.11.0/24 223.3.12.0/24 223.3.13.0/24
223.3.15.0/24 223.3.16.0/24 223.3.17.0/24 223.3.18.0/24
223.3.20.0/24 223.3.21.0/24 223.3.22.0/24 223.3.23.0/24
223.3.25.0/24 223.3.26.0/24 223.3.27.0/24 223.3.28.0/24
223.3.30.0/24 223.3.31.0/24 223.3.32.0/24 223.3.33.0/24
223.3.35.0/24 223.3.36.0/24 223.3.37.0/24 223.3.38.0/24
223.3.40.0/24 223.3.41.0/24 223.3.42.0/24 223.3.43.0/24
223.3.45.0/24 223.3.46.0/24 223.3.47.0/24 223.3.48.0/24
223.3.50.0/24 223.3.51.0/24 223.3.52.0/24 223.3.53.0/24
223.3.55.0/24 223.3.56.0/24 223.3.57.0/24 223.3.58.0/24
223.3.60.0/24 223.3.61.0/24 223.3.62.0/24 223.3.63.0/24
223.3.65.0/24 223.3.66.0/24 223.3.67.0/24 223.3.68.0/24
223.3.70.0/24 223.3.71.0/24 223.3.72.0/24 223.3.73.0/24
223.3.75.0/24 223.3.76.0/24 223.3.77.0/24 223.3.78.0/24
223.3.80.0/24 223.3.81.0/24 223.3.82.0/24 223.3.83.0/24
223.3.85.0/24 223.3.86.0/24 223.3.87.0/24 223.3.88.0/24
223.3.90.0/24 223.3.91.0/24 223.3.92.0/24 223.3.93.0/24
223.3.95.0/24 223.3.96.0/24 223.3.97.0/24 223.3.98.0/24
223.3.100.0/24 223.3.101.0/24 223.3.102.0/24 223.3.103.0/24
223.3.105.0/24 223.3.106.0/24 223.3.107.0/24 223.3.108.0/24
223.3.110.0/24 223.3.111.0/24 223.3.112.0/24 223.3.113.0/24
223.3.115.0/24 223.3.116.0/24 223.3.117.0/24 223.3.118.0/24
223.3.120.0/24 223.3.121.0/24 223.3.122.0/24 223.3.123.0/24
223.3.125.0/24 223.3.126.0/24 223.3.127.0/24 223.3.128.0/24
223.3.130.0/24 223.3.131.0/24 223.3.132.0/24 223.3.133.0/24
223.3.135.0/24 223.3.136.0/24 223.3.137.0/24 223.3.138.0/24
223.3.140.0/24 223.3.141.0/24 223.3.142.0/24 223.3.143.0/24
223.3.145.0/24 223.3.146.0/24 223.3.147.0/24 223.3.148.0/24
223.3.150.0/24 223.3.151.0/24 223.3.152.0/24 223.3.153.0/24
223.3.155.0/24 223.3.156.0/24 223.3.157.0/24 223.3.158.0/24
223.3.160.0/24 223.3.161.0/24 223.3.162.0/24 223.3.163.0/24
223.3.165.0/24 223.3.166.0/24 223.3.167.0/24 223.3.168.0/24
223.3.170.0/24 223.3.171.0/24 223.3.172.0/24 223.3.173.0/24
223.3.175.0/24 223.3.176.0/24 223.3.177.0/24 223.3.178.0/24
223.3.180.0/24 223.3.181.0/24 223.3.182.0/24 223.3.183.0/24
223.3.185.0/24 223.3.186.0/24 223.3.187.0/24 223.3.188.0/24
223.3.190.0/24 223.3.191.0/24 223.3.192.0/24 223.3.193.0/24
223.3.195.0/24 223.3.196.0/24 223.3.197.0/24 223.3.198.0/24
223.3.200.0/24 223.3.201.0/24 223.3.202.0/24 223.3.203.0/24
223.3.205.0/24 223.3.206.0/24 223.3.207.0/24 223.3.208.0/24
223.3.210.0/24 223.3.211.0/24 223.3.212.0/24 223.3.213.0/24
223.3.215.0/24 223.3.216.0/24 223.3.217.0/24 223.3.218.0/24
223.3.220.0/24 223.3.221.0/24 223.3.222.0/24 223.3.223.0/24
223.3.225.0/24 223.3.226.0/24 223.3.227.0/24 223.3.228.0/24
223.3.230.0/24 223.3.231.0/24 223.3.232.0/24 223.3.233.0/24
223.3.235.0/24 223.3.236.0/24 223.3.237.0/24 223.3.238.0/24
223.3.240.0/24 223.3.241.0/24 223.3.242.0/24 223.3.243.0/24
223.3.245.0/24 223.3.246.0/24 223.3.247.0/24 223.3.248.0/24
223.3.250.0/24 223.3.251.0/24 223.3.252.0/24 223.3.253.0/24
223.3.255.0/24