Summary

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

APNIC

Country

Status

ALLOCATED PORTABLE

RegDate

Updated

2020-09-03T09:15:58Z

Whois

inetnum:        121.248.0.0 - 121.251.255.255
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:  2020-09-03T09:15:58Z
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:  2024-07-03T13:05:44Z
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

121.248.0.0/24 121.248.1.0/24 121.248.2.0/24 121.248.3.0/24
121.248.5.0/24 121.248.6.0/24 121.248.7.0/24 121.248.8.0/24
121.248.10.0/24 121.248.11.0/24 121.248.12.0/24 121.248.13.0/24
121.248.15.0/24 121.248.16.0/24 121.248.17.0/24 121.248.18.0/24
121.248.20.0/24 121.248.21.0/24 121.248.22.0/24 121.248.23.0/24
121.248.25.0/24 121.248.26.0/24 121.248.27.0/24 121.248.28.0/24
121.248.30.0/24 121.248.31.0/24 121.248.32.0/24 121.248.33.0/24
121.248.35.0/24 121.248.36.0/24 121.248.37.0/24 121.248.38.0/24
121.248.40.0/24 121.248.41.0/24 121.248.42.0/24 121.248.43.0/24
121.248.45.0/24 121.248.46.0/24 121.248.47.0/24 121.248.48.0/24
121.248.50.0/24 121.248.51.0/24 121.248.52.0/24 121.248.53.0/24
121.248.55.0/24 121.248.56.0/24 121.248.57.0/24 121.248.58.0/24
121.248.60.0/24 121.248.61.0/24 121.248.62.0/24 121.248.63.0/24
121.248.65.0/24 121.248.66.0/24 121.248.67.0/24 121.248.68.0/24
121.248.70.0/24 121.248.71.0/24 121.248.72.0/24 121.248.73.0/24
121.248.75.0/24 121.248.76.0/24 121.248.77.0/24 121.248.78.0/24
121.248.80.0/24 121.248.81.0/24 121.248.82.0/24 121.248.83.0/24
121.248.85.0/24 121.248.86.0/24 121.248.87.0/24 121.248.88.0/24
121.248.90.0/24 121.248.91.0/24 121.248.92.0/24 121.248.93.0/24
121.248.95.0/24 121.248.96.0/24 121.248.97.0/24 121.248.98.0/24
121.248.100.0/24 121.248.101.0/24 121.248.102.0/24 121.248.103.0/24
121.248.105.0/24 121.248.106.0/24 121.248.107.0/24 121.248.108.0/24
121.248.110.0/24 121.248.111.0/24 121.248.112.0/24 121.248.113.0/24
121.248.115.0/24 121.248.116.0/24 121.248.117.0/24 121.248.118.0/24
121.248.120.0/24 121.248.121.0/24 121.248.122.0/24 121.248.123.0/24
121.248.125.0/24 121.248.126.0/24 121.248.127.0/24 121.248.128.0/24
121.248.130.0/24 121.248.131.0/24 121.248.132.0/24 121.248.133.0/24
121.248.135.0/24 121.248.136.0/24 121.248.137.0/24 121.248.138.0/24
121.248.140.0/24 121.248.141.0/24 121.248.142.0/24 121.248.143.0/24
121.248.145.0/24 121.248.146.0/24 121.248.147.0/24 121.248.148.0/24
121.248.150.0/24 121.248.151.0/24 121.248.152.0/24 121.248.153.0/24
121.248.155.0/24 121.248.156.0/24 121.248.157.0/24 121.248.158.0/24
121.248.160.0/24 121.248.161.0/24 121.248.162.0/24 121.248.163.0/24
121.248.165.0/24 121.248.166.0/24 121.248.167.0/24 121.248.168.0/24
121.248.170.0/24 121.248.171.0/24 121.248.172.0/24 121.248.173.0/24
121.248.175.0/24 121.248.176.0/24 121.248.177.0/24 121.248.178.0/24
121.248.180.0/24 121.248.181.0/24 121.248.182.0/24 121.248.183.0/24
121.248.185.0/24 121.248.186.0/24 121.248.187.0/24 121.248.188.0/24
121.248.190.0/24 121.248.191.0/24 121.248.192.0/24 121.248.193.0/24
121.248.195.0/24 121.248.196.0/24 121.248.197.0/24 121.248.198.0/24
121.248.200.0/24 121.248.201.0/24 121.248.202.0/24 121.248.203.0/24
121.248.205.0/24 121.248.206.0/24 121.248.207.0/24 121.248.208.0/24
121.248.210.0/24 121.248.211.0/24 121.248.212.0/24 121.248.213.0/24
121.248.215.0/24 121.248.216.0/24 121.248.217.0/24 121.248.218.0/24
121.248.220.0/24 121.248.221.0/24 121.248.222.0/24 121.248.223.0/24
121.248.225.0/24 121.248.226.0/24 121.248.227.0/24 121.248.228.0/24
121.248.230.0/24 121.248.231.0/24 121.248.232.0/24 121.248.233.0/24
121.248.235.0/24 121.248.236.0/24 121.248.237.0/24 121.248.238.0/24
121.248.240.0/24 121.248.241.0/24 121.248.242.0/24 121.248.243.0/24
121.248.245.0/24 121.248.246.0/24 121.248.247.0/24 121.248.248.0/24
121.248.250.0/24 121.248.251.0/24 121.248.252.0/24 121.248.253.0/24
121.248.255.0/24 121.249.0.0/24 121.249.1.0/24 121.249.2.0/24
121.249.4.0/24 121.249.5.0/24 121.249.6.0/24 121.249.7.0/24
121.249.9.0/24 121.249.10.0/24 121.249.11.0/24 121.249.12.0/24
121.249.14.0/24 121.249.15.0/24 121.249.16.0/24 121.249.17.0/24
121.249.19.0/24 121.249.20.0/24 121.249.21.0/24 121.249.22.0/24
121.249.24.0/24 121.249.25.0/24 121.249.26.0/24 121.249.27.0/24
121.249.29.0/24 121.249.30.0/24 121.249.31.0/24 121.249.32.0/24
121.249.34.0/24 121.249.35.0/24 121.249.36.0/24 121.249.37.0/24
121.249.39.0/24 121.249.40.0/24 121.249.41.0/24 121.249.42.0/24
121.249.44.0/24 121.249.45.0/24 121.249.46.0/24 121.249.47.0/24
121.249.49.0/24 121.249.50.0/24 121.249.51.0/24 121.249.52.0/24
121.249.54.0/24 121.249.55.0/24 121.249.56.0/24 121.249.57.0/24
121.249.59.0/24 121.249.60.0/24 121.249.61.0/24 121.249.62.0/24
121.249.64.0/24 121.249.65.0/24 121.249.66.0/24 121.249.67.0/24
121.249.69.0/24 121.249.70.0/24 121.249.71.0/24 121.249.72.0/24
121.249.74.0/24 121.249.75.0/24 121.249.76.0/24 121.249.77.0/24
121.249.79.0/24 121.249.80.0/24 121.249.81.0/24 121.249.82.0/24
121.249.84.0/24 121.249.85.0/24 121.249.86.0/24 121.249.87.0/24
121.249.89.0/24 121.249.90.0/24 121.249.91.0/24 121.249.92.0/24
121.249.94.0/24 121.249.95.0/24 121.249.96.0/24 121.249.97.0/24
121.249.99.0/24 121.249.100.0/24 121.249.101.0/24 121.249.102.0/24
121.249.104.0/24 121.249.105.0/24 121.249.106.0/24 121.249.107.0/24
121.249.109.0/24 121.249.110.0/24 121.249.111.0/24 121.249.112.0/24
121.249.114.0/24 121.249.115.0/24 121.249.116.0/24 121.249.117.0/24
121.249.119.0/24 121.249.120.0/24 121.249.121.0/24 121.249.122.0/24
121.249.124.0/24 121.249.125.0/24 121.249.126.0/24 121.249.127.0/24
121.249.129.0/24 121.249.130.0/24 121.249.131.0/24 121.249.132.0/24
121.249.134.0/24 121.249.135.0/24 121.249.136.0/24 121.249.137.0/24
121.249.139.0/24 121.249.140.0/24 121.249.141.0/24 121.249.142.0/24
121.249.144.0/24 121.249.145.0/24 121.249.146.0/24 121.249.147.0/24
121.249.149.0/24 121.249.150.0/24 121.249.151.0/24 121.249.152.0/24
121.249.154.0/24 121.249.155.0/24 121.249.156.0/24 121.249.157.0/24
121.249.159.0/24 121.249.160.0/24 121.249.161.0/24 121.249.162.0/24
121.249.164.0/24 121.249.165.0/24 121.249.166.0/24 121.249.167.0/24
121.249.169.0/24 121.249.170.0/24 121.249.171.0/24 121.249.172.0/24
121.249.174.0/24 121.249.175.0/24 121.249.176.0/24 121.249.177.0/24
121.249.179.0/24 121.249.180.0/24 121.249.181.0/24 121.249.182.0/24
121.249.184.0/24 121.249.185.0/24 121.249.186.0/24 121.249.187.0/24
121.249.189.0/24 121.249.190.0/24 121.249.191.0/24 121.249.192.0/24
121.249.194.0/24 121.249.195.0/24 121.249.196.0/24 121.249.197.0/24
121.249.199.0/24 121.249.200.0/24 121.249.201.0/24 121.249.202.0/24
121.249.204.0/24 121.249.205.0/24 121.249.206.0/24 121.249.207.0/24
121.249.209.0/24 121.249.210.0/24 121.249.211.0/24 121.249.212.0/24
121.249.214.0/24 121.249.215.0/24 121.249.216.0/24 121.249.217.0/24
121.249.219.0/24 121.249.220.0/24 121.249.221.0/24 121.249.222.0/24
121.249.224.0/24 121.249.225.0/24 121.249.226.0/24 121.249.227.0/24
121.249.229.0/24 121.249.230.0/24 121.249.231.0/24 121.249.232.0/24
121.249.234.0/24 121.249.235.0/24 121.249.236.0/24 121.249.237.0/24
121.249.239.0/24 121.249.240.0/24 121.249.241.0/24 121.249.242.0/24
121.249.244.0/24 121.249.245.0/24 121.249.246.0/24 121.249.247.0/24
121.249.249.0/24 121.249.250.0/24 121.249.251.0/24 121.249.252.0/24
121.249.254.0/24 121.249.255.0/24 121.250.0.0/24 121.250.1.0/24
121.250.3.0/24 121.250.4.0/24 121.250.5.0/24 121.250.6.0/24
121.250.8.0/24 121.250.9.0/24 121.250.10.0/24 121.250.11.0/24
121.250.13.0/24 121.250.14.0/24 121.250.15.0/24 121.250.16.0/24
121.250.18.0/24 121.250.19.0/24 121.250.20.0/24 121.250.21.0/24
121.250.23.0/24 121.250.24.0/24 121.250.25.0/24 121.250.26.0/24
121.250.28.0/24 121.250.29.0/24 121.250.30.0/24 121.250.31.0/24
121.250.33.0/24 121.250.34.0/24 121.250.35.0/24 121.250.36.0/24
121.250.38.0/24 121.250.39.0/24 121.250.40.0/24 121.250.41.0/24
121.250.43.0/24 121.250.44.0/24 121.250.45.0/24 121.250.46.0/24
121.250.48.0/24 121.250.49.0/24 121.250.50.0/24 121.250.51.0/24
121.250.53.0/24 121.250.54.0/24 121.250.55.0/24 121.250.56.0/24
121.250.58.0/24 121.250.59.0/24 121.250.60.0/24 121.250.61.0/24
121.250.63.0/24 121.250.64.0/24 121.250.65.0/24 121.250.66.0/24
121.250.68.0/24 121.250.69.0/24 121.250.70.0/24 121.250.71.0/24
121.250.73.0/24 121.250.74.0/24 121.250.75.0/24 121.250.76.0/24
121.250.78.0/24 121.250.79.0/24 121.250.80.0/24 121.250.81.0/24
121.250.83.0/24 121.250.84.0/24 121.250.85.0/24 121.250.86.0/24
121.250.88.0/24 121.250.89.0/24 121.250.90.0/24 121.250.91.0/24
121.250.93.0/24 121.250.94.0/24 121.250.95.0/24 121.250.96.0/24
121.250.98.0/24 121.250.99.0/24 121.250.100.0/24 121.250.101.0/24
121.250.103.0/24 121.250.104.0/24 121.250.105.0/24 121.250.106.0/24
121.250.108.0/24 121.250.109.0/24 121.250.110.0/24 121.250.111.0/24
121.250.113.0/24 121.250.114.0/24 121.250.115.0/24 121.250.116.0/24
121.250.118.0/24 121.250.119.0/24 121.250.120.0/24 121.250.121.0/24
121.250.123.0/24 121.250.124.0/24 121.250.125.0/24 121.250.126.0/24
121.250.128.0/24 121.250.129.0/24 121.250.130.0/24 121.250.131.0/24
121.250.133.0/24 121.250.134.0/24 121.250.135.0/24 121.250.136.0/24
121.250.138.0/24 121.250.139.0/24 121.250.140.0/24 121.250.141.0/24
121.250.143.0/24 121.250.144.0/24 121.250.145.0/24 121.250.146.0/24
121.250.148.0/24 121.250.149.0/24 121.250.150.0/24 121.250.151.0/24
121.250.153.0/24 121.250.154.0/24 121.250.155.0/24 121.250.156.0/24
121.250.158.0/24 121.250.159.0/24 121.250.160.0/24 121.250.161.0/24
121.250.163.0/24 121.250.164.0/24 121.250.165.0/24 121.250.166.0/24
121.250.168.0/24 121.250.169.0/24 121.250.170.0/24 121.250.171.0/24
121.250.173.0/24 121.250.174.0/24 121.250.175.0/24 121.250.176.0/24
121.250.178.0/24 121.250.179.0/24 121.250.180.0/24 121.250.181.0/24
121.250.183.0/24 121.250.184.0/24 121.250.185.0/24 121.250.186.0/24
121.250.188.0/24 121.250.189.0/24 121.250.190.0/24 121.250.191.0/24
121.250.193.0/24 121.250.194.0/24 121.250.195.0/24 121.250.196.0/24
121.250.198.0/24 121.250.199.0/24 121.250.200.0/24 121.250.201.0/24
121.250.203.0/24 121.250.204.0/24 121.250.205.0/24 121.250.206.0/24
121.250.208.0/24 121.250.209.0/24 121.250.210.0/24 121.250.211.0/24
121.250.213.0/24 121.250.214.0/24 121.250.215.0/24 121.250.216.0/24
121.250.218.0/24 121.250.219.0/24 121.250.220.0/24 121.250.221.0/24
121.250.223.0/24 121.250.224.0/24 121.250.225.0/24 121.250.226.0/24
121.250.228.0/24 121.250.229.0/24 121.250.230.0/24 121.250.231.0/24
121.250.233.0/24 121.250.234.0/24 121.250.235.0/24 121.250.236.0/24
121.250.238.0/24 121.250.239.0/24 121.250.240.0/24 121.250.241.0/24
121.250.243.0/24 121.250.244.0/24 121.250.245.0/24 121.250.246.0/24
121.250.248.0/24 121.250.249.0/24 121.250.250.0/24 121.250.251.0/24
121.250.253.0/24 121.250.254.0/24 121.250.255.0/24 121.251.0.0/24
121.251.2.0/24 121.251.3.0/24 121.251.4.0/24 121.251.5.0/24
121.251.7.0/24 121.251.8.0/24 121.251.9.0/24 121.251.10.0/24
121.251.12.0/24 121.251.13.0/24 121.251.14.0/24 121.251.15.0/24
121.251.17.0/24 121.251.18.0/24 121.251.19.0/24 121.251.20.0/24
121.251.22.0/24 121.251.23.0/24 121.251.24.0/24 121.251.25.0/24
121.251.27.0/24 121.251.28.0/24 121.251.29.0/24 121.251.30.0/24
121.251.32.0/24 121.251.33.0/24 121.251.34.0/24 121.251.35.0/24
121.251.37.0/24 121.251.38.0/24 121.251.39.0/24 121.251.40.0/24
121.251.42.0/24 121.251.43.0/24 121.251.44.0/24 121.251.45.0/24
121.251.47.0/24 121.251.48.0/24 121.251.49.0/24 121.251.50.0/24
121.251.52.0/24 121.251.53.0/24 121.251.54.0/24 121.251.55.0/24
121.251.57.0/24 121.251.58.0/24 121.251.59.0/24 121.251.60.0/24
121.251.62.0/24 121.251.63.0/24 121.251.64.0/24 121.251.65.0/24
121.251.67.0/24 121.251.68.0/24 121.251.69.0/24 121.251.70.0/24
121.251.72.0/24 121.251.73.0/24 121.251.74.0/24 121.251.75.0/24
121.251.77.0/24 121.251.78.0/24 121.251.79.0/24 121.251.80.0/24
121.251.82.0/24 121.251.83.0/24 121.251.84.0/24 121.251.85.0/24
121.251.87.0/24 121.251.88.0/24 121.251.89.0/24 121.251.90.0/24
121.251.92.0/24 121.251.93.0/24 121.251.94.0/24 121.251.95.0/24
121.251.97.0/24 121.251.98.0/24 121.251.99.0/24 121.251.100.0/24
121.251.102.0/24 121.251.103.0/24 121.251.104.0/24 121.251.105.0/24
121.251.107.0/24 121.251.108.0/24 121.251.109.0/24 121.251.110.0/24
121.251.112.0/24 121.251.113.0/24 121.251.114.0/24 121.251.115.0/24
121.251.117.0/24 121.251.118.0/24 121.251.119.0/24 121.251.120.0/24
121.251.122.0/24 121.251.123.0/24 121.251.124.0/24 121.251.125.0/24
121.251.127.0/24 121.251.128.0/24 121.251.129.0/24 121.251.130.0/24
121.251.132.0/24 121.251.133.0/24 121.251.134.0/24 121.251.135.0/24
121.251.137.0/24 121.251.138.0/24 121.251.139.0/24 121.251.140.0/24
121.251.142.0/24 121.251.143.0/24 121.251.144.0/24 121.251.145.0/24
121.251.147.0/24 121.251.148.0/24 121.251.149.0/24 121.251.150.0/24
121.251.152.0/24 121.251.153.0/24 121.251.154.0/24 121.251.155.0/24
121.251.157.0/24 121.251.158.0/24 121.251.159.0/24 121.251.160.0/24
121.251.162.0/24 121.251.163.0/24 121.251.164.0/24 121.251.165.0/24
121.251.167.0/24 121.251.168.0/24 121.251.169.0/24 121.251.170.0/24
121.251.172.0/24 121.251.173.0/24 121.251.174.0/24 121.251.175.0/24
121.251.177.0/24 121.251.178.0/24 121.251.179.0/24 121.251.180.0/24
121.251.182.0/24 121.251.183.0/24 121.251.184.0/24 121.251.185.0/24
121.251.187.0/24 121.251.188.0/24 121.251.189.0/24 121.251.190.0/24
121.251.192.0/24 121.251.193.0/24 121.251.194.0/24 121.251.195.0/24
121.251.197.0/24 121.251.198.0/24 121.251.199.0/24 121.251.200.0/24
121.251.202.0/24 121.251.203.0/24 121.251.204.0/24 121.251.205.0/24
121.251.207.0/24 121.251.208.0/24 121.251.209.0/24 121.251.210.0/24
121.251.212.0/24 121.251.213.0/24 121.251.214.0/24 121.251.215.0/24
121.251.217.0/24 121.251.218.0/24 121.251.219.0/24 121.251.220.0/24
121.251.222.0/24 121.251.223.0/24 121.251.224.0/24 121.251.225.0/24
121.251.227.0/24 121.251.228.0/24 121.251.229.0/24 121.251.230.0/24
121.251.232.0/24 121.251.233.0/24 121.251.234.0/24 121.251.235.0/24
121.251.237.0/24 121.251.238.0/24 121.251.239.0/24 121.251.240.0/24
121.251.242.0/24 121.251.243.0/24 121.251.244.0/24 121.251.245.0/24
121.251.247.0/24 121.251.248.0/24 121.251.249.0/24 121.251.250.0/24
121.251.252.0/24 121.251.253.0/24 121.251.254.0/24 121.251.255.0/24