Summary

NetName
OrgName
CIDR
RIR

APNIC

Country
Status

Abuse

Contact
RegDate

Updated

Routing

AS Desc Country IPv4 NUMs IPv6 NUMs
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN China 17172736 17970298617856

Whois

% Abuse contact for '202.112.0.0 - 202.121.255.255' is '[email protected]'

inetnum:        202.112.0.0 - 202.121.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing, 100084
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:29Z
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

202.121.0.0/24 202.121.1.0/24 202.121.2.0/24 202.121.3.0/24
202.121.5.0/24 202.121.6.0/24 202.121.7.0/24 202.121.8.0/24
202.121.10.0/24 202.121.11.0/24 202.121.12.0/24 202.121.13.0/24
202.121.15.0/24 202.121.16.0/24 202.121.17.0/24 202.121.18.0/24
202.121.20.0/24 202.121.21.0/24 202.121.22.0/24 202.121.23.0/24
202.121.25.0/24 202.121.26.0/24 202.121.27.0/24 202.121.28.0/24
202.121.30.0/24 202.121.31.0/24 202.121.32.0/24 202.121.33.0/24
202.121.35.0/24 202.121.36.0/24 202.121.37.0/24 202.121.38.0/24
202.121.40.0/24 202.121.41.0/24 202.121.42.0/24 202.121.43.0/24
202.121.45.0/24 202.121.46.0/24 202.121.47.0/24 202.121.48.0/24
202.121.50.0/24 202.121.51.0/24 202.121.52.0/24 202.121.53.0/24
202.121.55.0/24 202.121.56.0/24 202.121.57.0/24 202.121.58.0/24
202.121.60.0/24 202.121.61.0/24 202.121.62.0/24 202.121.63.0/24
202.121.65.0/24 202.121.66.0/24 202.121.67.0/24 202.121.68.0/24
202.121.70.0/24 202.121.71.0/24 202.121.72.0/24 202.121.73.0/24
202.121.75.0/24 202.121.76.0/24 202.121.77.0/24 202.121.78.0/24
202.121.80.0/24 202.121.81.0/24 202.121.82.0/24 202.121.83.0/24
202.121.85.0/24 202.121.86.0/24 202.121.87.0/24 202.121.88.0/24
202.121.90.0/24 202.121.91.0/24 202.121.92.0/24 202.121.93.0/24
202.121.95.0/24 202.121.96.0/24 202.121.97.0/24 202.121.98.0/24
202.121.100.0/24 202.121.101.0/24 202.121.102.0/24 202.121.103.0/24
202.121.105.0/24 202.121.106.0/24 202.121.107.0/24 202.121.108.0/24
202.121.110.0/24 202.121.111.0/24 202.121.112.0/24 202.121.113.0/24
202.121.115.0/24 202.121.116.0/24 202.121.117.0/24 202.121.118.0/24
202.121.120.0/24 202.121.121.0/24 202.121.122.0/24 202.121.123.0/24
202.121.125.0/24 202.121.126.0/24 202.121.127.0/24 202.121.128.0/24
202.121.130.0/24 202.121.131.0/24 202.121.132.0/24 202.121.133.0/24
202.121.135.0/24 202.121.136.0/24 202.121.137.0/24 202.121.138.0/24
202.121.140.0/24 202.121.141.0/24 202.121.142.0/24 202.121.143.0/24
202.121.145.0/24 202.121.146.0/24 202.121.147.0/24 202.121.148.0/24
202.121.150.0/24 202.121.151.0/24 202.121.152.0/24 202.121.153.0/24
202.121.155.0/24 202.121.156.0/24 202.121.157.0/24 202.121.158.0/24
202.121.160.0/24 202.121.161.0/24 202.121.162.0/24 202.121.163.0/24
202.121.165.0/24 202.121.166.0/24 202.121.167.0/24 202.121.168.0/24
202.121.170.0/24 202.121.171.0/24 202.121.172.0/24 202.121.173.0/24
202.121.175.0/24 202.121.176.0/24 202.121.177.0/24 202.121.178.0/24
202.121.180.0/24 202.121.181.0/24 202.121.182.0/24 202.121.183.0/24
202.121.185.0/24 202.121.186.0/24 202.121.187.0/24 202.121.188.0/24
202.121.190.0/24 202.121.191.0/24 202.121.192.0/24 202.121.193.0/24
202.121.195.0/24 202.121.196.0/24 202.121.197.0/24 202.121.198.0/24
202.121.200.0/24 202.121.201.0/24 202.121.202.0/24 202.121.203.0/24
202.121.205.0/24 202.121.206.0/24 202.121.207.0/24 202.121.208.0/24
202.121.210.0/24 202.121.211.0/24 202.121.212.0/24 202.121.213.0/24
202.121.215.0/24 202.121.216.0/24 202.121.217.0/24 202.121.218.0/24
202.121.220.0/24 202.121.221.0/24 202.121.222.0/24 202.121.223.0/24
202.121.225.0/24 202.121.226.0/24 202.121.227.0/24 202.121.228.0/24
202.121.230.0/24 202.121.231.0/24 202.121.232.0/24 202.121.233.0/24
202.121.235.0/24 202.121.236.0/24 202.121.237.0/24 202.121.238.0/24
202.121.240.0/24 202.121.241.0/24 202.121.242.0/24 202.121.243.0/24
202.121.245.0/24 202.121.246.0/24 202.121.247.0/24 202.121.248.0/24
202.121.250.0/24 202.121.251.0/24 202.121.252.0/24 202.121.253.0/24
202.121.255.0/24