Summary

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

APNIC

Country

Status

ALLOCATED PORTABLE

Abuse

Contact
RegDate

Updated

2020-09-03T09:16:00Z

Routing

AS Desc Country IPv4 NUMs IPv6 NUMs

Whois

inetnum:        121.48.0.0 - 121.49.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu 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:  2020-09-03T09:16:00Z
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 was validated on 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        abuse@cernet.edu.cn was validated on 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
source:         APNIC

Graph

CIDR

121.48.0.0/24 121.48.1.0/24 121.48.2.0/24 121.48.3.0/24
121.48.5.0/24 121.48.6.0/24 121.48.7.0/24 121.48.8.0/24
121.48.10.0/24 121.48.11.0/24 121.48.12.0/24 121.48.13.0/24
121.48.15.0/24 121.48.16.0/24 121.48.17.0/24 121.48.18.0/24
121.48.20.0/24 121.48.21.0/24 121.48.22.0/24 121.48.23.0/24
121.48.25.0/24 121.48.26.0/24 121.48.27.0/24 121.48.28.0/24
121.48.30.0/24 121.48.31.0/24 121.48.32.0/24 121.48.33.0/24
121.48.35.0/24 121.48.36.0/24 121.48.37.0/24 121.48.38.0/24
121.48.40.0/24 121.48.41.0/24 121.48.42.0/24 121.48.43.0/24
121.48.45.0/24 121.48.46.0/24 121.48.47.0/24 121.48.48.0/24
121.48.50.0/24 121.48.51.0/24 121.48.52.0/24 121.48.53.0/24
121.48.55.0/24 121.48.56.0/24 121.48.57.0/24 121.48.58.0/24
121.48.60.0/24 121.48.61.0/24 121.48.62.0/24 121.48.63.0/24
121.48.65.0/24 121.48.66.0/24 121.48.67.0/24 121.48.68.0/24
121.48.70.0/24 121.48.71.0/24 121.48.72.0/24 121.48.73.0/24
121.48.75.0/24 121.48.76.0/24 121.48.77.0/24 121.48.78.0/24
121.48.80.0/24 121.48.81.0/24 121.48.82.0/24 121.48.83.0/24
121.48.85.0/24 121.48.86.0/24 121.48.87.0/24 121.48.88.0/24
121.48.90.0/24 121.48.91.0/24 121.48.92.0/24 121.48.93.0/24
121.48.95.0/24 121.48.96.0/24 121.48.97.0/24 121.48.98.0/24
121.48.100.0/24 121.48.101.0/24 121.48.102.0/24 121.48.103.0/24
121.48.105.0/24 121.48.106.0/24 121.48.107.0/24 121.48.108.0/24
121.48.110.0/24 121.48.111.0/24 121.48.112.0/24 121.48.113.0/24
121.48.115.0/24 121.48.116.0/24 121.48.117.0/24 121.48.118.0/24
121.48.120.0/24 121.48.121.0/24 121.48.122.0/24 121.48.123.0/24
121.48.125.0/24 121.48.126.0/24 121.48.127.0/24 121.48.128.0/24
121.48.130.0/24 121.48.131.0/24 121.48.132.0/24 121.48.133.0/24
121.48.135.0/24 121.48.136.0/24 121.48.137.0/24 121.48.138.0/24
121.48.140.0/24 121.48.141.0/24 121.48.142.0/24 121.48.143.0/24
121.48.145.0/24 121.48.146.0/24 121.48.147.0/24 121.48.148.0/24
121.48.150.0/24 121.48.151.0/24 121.48.152.0/24 121.48.153.0/24
121.48.155.0/24 121.48.156.0/24 121.48.157.0/24 121.48.158.0/24
121.48.160.0/24 121.48.161.0/24 121.48.162.0/24 121.48.163.0/24
121.48.165.0/24 121.48.166.0/24 121.48.167.0/24 121.48.168.0/24
121.48.170.0/24 121.48.171.0/24 121.48.172.0/24 121.48.173.0/24
121.48.175.0/24 121.48.176.0/24 121.48.177.0/24 121.48.178.0/24
121.48.180.0/24 121.48.181.0/24 121.48.182.0/24 121.48.183.0/24
121.48.185.0/24 121.48.186.0/24 121.48.187.0/24 121.48.188.0/24
121.48.190.0/24 121.48.191.0/24 121.48.192.0/24 121.48.193.0/24
121.48.195.0/24 121.48.196.0/24 121.48.197.0/24 121.48.198.0/24
121.48.200.0/24 121.48.201.0/24 121.48.202.0/24 121.48.203.0/24
121.48.205.0/24 121.48.206.0/24 121.48.207.0/24 121.48.208.0/24
121.48.210.0/24 121.48.211.0/24 121.48.212.0/24 121.48.213.0/24
121.48.215.0/24 121.48.216.0/24 121.48.217.0/24 121.48.218.0/24
121.48.220.0/24 121.48.221.0/24 121.48.222.0/24 121.48.223.0/24
121.48.225.0/24 121.48.226.0/24 121.48.227.0/24 121.48.228.0/24
121.48.230.0/24 121.48.231.0/24 121.48.232.0/24 121.48.233.0/24
121.48.235.0/24 121.48.236.0/24 121.48.237.0/24 121.48.238.0/24
121.48.240.0/24 121.48.241.0/24 121.48.242.0/24 121.48.243.0/24
121.48.245.0/24 121.48.246.0/24 121.48.247.0/24 121.48.248.0/24
121.48.250.0/24 121.48.251.0/24 121.48.252.0/24 121.48.253.0/24
121.48.255.0/24