Summary

NetName
BJR-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

2020-09-03T09:16:13Z

Whois

inetnum:        183.172.0.0 - 183.175.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        NS2.NET.EDU.CN
remarks:        DNS.EDU.CN
remarks:        DNS2.EDU.CN
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:  2020-09-03T09:16:13Z
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

183.172.0.0/24 183.172.1.0/24 183.172.2.0/24 183.172.3.0/24
183.172.5.0/24 183.172.6.0/24 183.172.7.0/24 183.172.8.0/24
183.172.10.0/24 183.172.11.0/24 183.172.12.0/24 183.172.13.0/24
183.172.15.0/24 183.172.16.0/24 183.172.17.0/24 183.172.18.0/24
183.172.20.0/24 183.172.21.0/24 183.172.22.0/24 183.172.23.0/24
183.172.25.0/24 183.172.26.0/24 183.172.27.0/24 183.172.28.0/24
183.172.30.0/24 183.172.31.0/24 183.172.32.0/24 183.172.33.0/24
183.172.35.0/24 183.172.36.0/24 183.172.37.0/24 183.172.38.0/24
183.172.40.0/24 183.172.41.0/24 183.172.42.0/24 183.172.43.0/24
183.172.45.0/24 183.172.46.0/24 183.172.47.0/24 183.172.48.0/24
183.172.50.0/24 183.172.51.0/24 183.172.52.0/24 183.172.53.0/24
183.172.55.0/24 183.172.56.0/24 183.172.57.0/24 183.172.58.0/24
183.172.60.0/24 183.172.61.0/24 183.172.62.0/24 183.172.63.0/24
183.172.65.0/24 183.172.66.0/24 183.172.67.0/24 183.172.68.0/24
183.172.70.0/24 183.172.71.0/24 183.172.72.0/24 183.172.73.0/24
183.172.75.0/24 183.172.76.0/24 183.172.77.0/24 183.172.78.0/24
183.172.80.0/24 183.172.81.0/24 183.172.82.0/24 183.172.83.0/24
183.172.85.0/24 183.172.86.0/24 183.172.87.0/24 183.172.88.0/24
183.172.90.0/24 183.172.91.0/24 183.172.92.0/24 183.172.93.0/24
183.172.95.0/24 183.172.96.0/24 183.172.97.0/24 183.172.98.0/24
183.172.100.0/24 183.172.101.0/24 183.172.102.0/24 183.172.103.0/24
183.172.105.0/24 183.172.106.0/24 183.172.107.0/24 183.172.108.0/24
183.172.110.0/24 183.172.111.0/24 183.172.112.0/24 183.172.113.0/24
183.172.115.0/24 183.172.116.0/24 183.172.117.0/24 183.172.118.0/24
183.172.120.0/24 183.172.121.0/24 183.172.122.0/24 183.172.123.0/24
183.172.125.0/24 183.172.126.0/24 183.172.127.0/24 183.172.128.0/24
183.172.130.0/24 183.172.131.0/24 183.172.132.0/24 183.172.133.0/24
183.172.135.0/24 183.172.136.0/24 183.172.137.0/24 183.172.138.0/24
183.172.140.0/24 183.172.141.0/24 183.172.142.0/24 183.172.143.0/24
183.172.145.0/24 183.172.146.0/24 183.172.147.0/24 183.172.148.0/24
183.172.150.0/24 183.172.151.0/24 183.172.152.0/24 183.172.153.0/24
183.172.155.0/24 183.172.156.0/24 183.172.157.0/24 183.172.158.0/24
183.172.160.0/24 183.172.161.0/24 183.172.162.0/24 183.172.163.0/24
183.172.165.0/24 183.172.166.0/24 183.172.167.0/24 183.172.168.0/24
183.172.170.0/24 183.172.171.0/24 183.172.172.0/24 183.172.173.0/24
183.172.175.0/24 183.172.176.0/24 183.172.177.0/24 183.172.178.0/24
183.172.180.0/24 183.172.181.0/24 183.172.182.0/24 183.172.183.0/24
183.172.185.0/24 183.172.186.0/24 183.172.187.0/24 183.172.188.0/24
183.172.190.0/24 183.172.191.0/24 183.172.192.0/24 183.172.193.0/24
183.172.195.0/24 183.172.196.0/24 183.172.197.0/24 183.172.198.0/24
183.172.200.0/24 183.172.201.0/24 183.172.202.0/24 183.172.203.0/24
183.172.205.0/24 183.172.206.0/24 183.172.207.0/24 183.172.208.0/24
183.172.210.0/24 183.172.211.0/24 183.172.212.0/24 183.172.213.0/24
183.172.215.0/24 183.172.216.0/24 183.172.217.0/24 183.172.218.0/24
183.172.220.0/24 183.172.221.0/24 183.172.222.0/24 183.172.223.0/24
183.172.225.0/24 183.172.226.0/24 183.172.227.0/24 183.172.228.0/24
183.172.230.0/24 183.172.231.0/24 183.172.232.0/24 183.172.233.0/24
183.172.235.0/24 183.172.236.0/24 183.172.237.0/24 183.172.238.0/24
183.172.240.0/24 183.172.241.0/24 183.172.242.0/24 183.172.243.0/24
183.172.245.0/24 183.172.246.0/24 183.172.247.0/24 183.172.248.0/24
183.172.250.0/24 183.172.251.0/24 183.172.252.0/24 183.172.253.0/24
183.172.255.0/24