Summary

NetName
OrgName
CIDR
RIR

APNIC

Country
Status

Abuse

Contact
RegDate

Updated

Whois

% Abuse contact for '1.51.0.0 - 1.51.255.255' is '[email protected]'

inetnum:        1.51.0.0 - 1.51.255.255
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:  2020-09-03T09:16:03Z
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 2024-07-04
mnt-by:         MAINT-CERNET-AP
last-modified:  2024-07-04T04:10:10Z
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
remarks:        [email protected] was validated on 2024-07-04
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2024-07-04T04:10:19Z
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

1.51.0.0/24 1.51.1.0/24 1.51.2.0/24 1.51.3.0/24
1.51.5.0/24 1.51.6.0/24 1.51.7.0/24 1.51.8.0/24
1.51.10.0/24 1.51.11.0/24 1.51.12.0/24 1.51.13.0/24
1.51.15.0/24 1.51.16.0/24 1.51.17.0/24 1.51.18.0/24
1.51.20.0/24 1.51.21.0/24 1.51.22.0/24 1.51.23.0/24
1.51.25.0/24 1.51.26.0/24 1.51.27.0/24 1.51.28.0/24
1.51.30.0/24 1.51.31.0/24 1.51.32.0/24 1.51.33.0/24
1.51.35.0/24 1.51.36.0/24 1.51.37.0/24 1.51.38.0/24
1.51.40.0/24 1.51.41.0/24 1.51.42.0/24 1.51.43.0/24
1.51.45.0/24 1.51.46.0/24 1.51.47.0/24 1.51.48.0/24
1.51.50.0/24 1.51.51.0/24 1.51.52.0/24 1.51.53.0/24
1.51.55.0/24 1.51.56.0/24 1.51.57.0/24 1.51.58.0/24
1.51.60.0/24 1.51.61.0/24 1.51.62.0/24 1.51.63.0/24
1.51.65.0/24 1.51.66.0/24 1.51.67.0/24 1.51.68.0/24
1.51.70.0/24 1.51.71.0/24 1.51.72.0/24 1.51.73.0/24
1.51.75.0/24 1.51.76.0/24 1.51.77.0/24 1.51.78.0/24
1.51.80.0/24 1.51.81.0/24 1.51.82.0/24 1.51.83.0/24
1.51.85.0/24 1.51.86.0/24 1.51.87.0/24 1.51.88.0/24
1.51.90.0/24 1.51.91.0/24 1.51.92.0/24 1.51.93.0/24
1.51.95.0/24 1.51.96.0/24 1.51.97.0/24 1.51.98.0/24
1.51.100.0/24 1.51.101.0/24 1.51.102.0/24 1.51.103.0/24
1.51.105.0/24 1.51.106.0/24 1.51.107.0/24 1.51.108.0/24
1.51.110.0/24 1.51.111.0/24 1.51.112.0/24 1.51.113.0/24
1.51.115.0/24 1.51.116.0/24 1.51.117.0/24 1.51.118.0/24
1.51.120.0/24 1.51.121.0/24 1.51.122.0/24 1.51.123.0/24
1.51.125.0/24 1.51.126.0/24 1.51.127.0/24 1.51.128.0/24
1.51.130.0/24 1.51.131.0/24 1.51.132.0/24 1.51.133.0/24
1.51.135.0/24 1.51.136.0/24 1.51.137.0/24 1.51.138.0/24
1.51.140.0/24 1.51.141.0/24 1.51.142.0/24 1.51.143.0/24
1.51.145.0/24 1.51.146.0/24 1.51.147.0/24 1.51.148.0/24
1.51.150.0/24 1.51.151.0/24 1.51.152.0/24 1.51.153.0/24
1.51.155.0/24 1.51.156.0/24 1.51.157.0/24 1.51.158.0/24
1.51.160.0/24 1.51.161.0/24 1.51.162.0/24 1.51.163.0/24
1.51.165.0/24 1.51.166.0/24 1.51.167.0/24 1.51.168.0/24
1.51.170.0/24 1.51.171.0/24 1.51.172.0/24 1.51.173.0/24
1.51.175.0/24 1.51.176.0/24 1.51.177.0/24 1.51.178.0/24
1.51.180.0/24 1.51.181.0/24 1.51.182.0/24 1.51.183.0/24
1.51.185.0/24 1.51.186.0/24 1.51.187.0/24 1.51.188.0/24
1.51.190.0/24 1.51.191.0/24 1.51.192.0/24 1.51.193.0/24
1.51.195.0/24 1.51.196.0/24 1.51.197.0/24 1.51.198.0/24
1.51.200.0/24 1.51.201.0/24 1.51.202.0/24 1.51.203.0/24
1.51.205.0/24 1.51.206.0/24 1.51.207.0/24 1.51.208.0/24
1.51.210.0/24 1.51.211.0/24 1.51.212.0/24 1.51.213.0/24
1.51.215.0/24 1.51.216.0/24 1.51.217.0/24 1.51.218.0/24
1.51.220.0/24 1.51.221.0/24 1.51.222.0/24 1.51.223.0/24
1.51.225.0/24 1.51.226.0/24 1.51.227.0/24 1.51.228.0/24
1.51.230.0/24 1.51.231.0/24 1.51.232.0/24 1.51.233.0/24
1.51.235.0/24 1.51.236.0/24 1.51.237.0/24 1.51.238.0/24
1.51.240.0/24 1.51.241.0/24 1.51.242.0/24 1.51.243.0/24
1.51.245.0/24 1.51.246.0/24 1.51.247.0/24 1.51.248.0/24
1.51.250.0/24 1.51.251.0/24 1.51.252.0/24 1.51.253.0/24
1.51.255.0/24