IP subnet details

121.251.234.0/24

AS138371  — China Education And Research Network (cernet)

Summary

Country
CN China
Domain cernet.net
Size 256
Registry APNIC
Network Name NJR-CERNET

Whois

[whois.apnic.net]



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] was validated on 2023-12-14
mnt-by: MAINT-CERNET-AP
last-modified: 2023-12-14T03:44:39Z
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 2023-12-14
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2023-12-14T03:44:51Z
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


route: 121.250.0.0/15
descr: CERNET
origin: AS4538
mnt-by: MAINT-CERNET-AP
last-modified: 2009-01-05T03:10:57Z
source: APNIC



CIDR IP address subranges within 121.251.234.0/24 subnet

  • 121.251.234.0/32
  • 121.251.234.1/32
  • 121.251.234.2/32
  • 121.251.234.3/32
  • 121.251.234.4/32
  • 121.251.234.5/32
  • 121.251.234.6/32
  • 121.251.234.7/32
  • 121.251.234.8/32
  • 121.251.234.9/32
  • 121.251.234.10/32
  • 121.251.234.11/32
  • 121.251.234.12/32
  • 121.251.234.13/32
  • 121.251.234.14/32
  • 121.251.234.15/32
  • 121.251.234.16/32
  • 121.251.234.17/32
  • 121.251.234.18/32
  • 121.251.234.19/32
  • 121.251.234.20/32
  • 121.251.234.21/32
  • 121.251.234.22/32
  • 121.251.234.23/32
  • 121.251.234.24/32
  • 121.251.234.25/32
  • 121.251.234.26/32
  • 121.251.234.27/32
  • 121.251.234.28/32
  • 121.251.234.29/32
  • 121.251.234.30/32
  • 121.251.234.31/32
  • 121.251.234.32/32
  • 121.251.234.33/32
  • 121.251.234.34/32
  • 121.251.234.35/32
  • 121.251.234.36/32
  • 121.251.234.37/32
  • 121.251.234.38/32
  • 121.251.234.39/32
  • 121.251.234.40/32
  • 121.251.234.41/32
  • 121.251.234.42/32
  • 121.251.234.43/32
  • 121.251.234.44/32
  • 121.251.234.45/32
  • 121.251.234.46/32
  • 121.251.234.47/32
  • 121.251.234.48/32
  • 121.251.234.49/32
  • 121.251.234.50/32
  • 121.251.234.51/32
  • 121.251.234.52/32
  • 121.251.234.53/32
  • 121.251.234.54/32
  • 121.251.234.55/32
  • 121.251.234.56/32
  • 121.251.234.57/32
  • 121.251.234.58/32
  • 121.251.234.59/32
  • 121.251.234.60/32
  • 121.251.234.61/32
  • 121.251.234.62/32
  • 121.251.234.63/32
  • 121.251.234.64/32
  • 121.251.234.65/32
  • 121.251.234.66/32
  • 121.251.234.67/32
  • 121.251.234.68/32
  • 121.251.234.69/32
  • 121.251.234.70/32
  • 121.251.234.71/32
  • 121.251.234.72/32
  • 121.251.234.73/32
  • 121.251.234.74/32
  • 121.251.234.75/32
  • 121.251.234.76/32
  • 121.251.234.77/32
  • 121.251.234.78/32
  • 121.251.234.79/32
  • 121.251.234.80/32
  • 121.251.234.81/32
  • 121.251.234.82/32
  • 121.251.234.83/32
  • 121.251.234.84/32
  • 121.251.234.85/32
  • 121.251.234.86/32
  • 121.251.234.87/32
  • 121.251.234.88/32
  • 121.251.234.89/32
  • 121.251.234.90/32
  • 121.251.234.91/32
  • 121.251.234.92/32
  • 121.251.234.93/32
  • 121.251.234.94/32
  • 121.251.234.95/32
  • 121.251.234.96/32
  • 121.251.234.97/32
  • 121.251.234.98/32
  • 121.251.234.99/32
  • 121.251.234.100/32
  • 121.251.234.101/32
  • 121.251.234.102/32
  • 121.251.234.103/32
  • 121.251.234.104/32
  • 121.251.234.105/32
  • 121.251.234.106/32
  • 121.251.234.107/32
  • 121.251.234.108/32
  • 121.251.234.109/32
  • 121.251.234.110/32
  • 121.251.234.111/32
  • 121.251.234.112/32
  • 121.251.234.113/32
  • 121.251.234.114/32
  • 121.251.234.115/32
  • 121.251.234.116/32
  • 121.251.234.117/32
  • 121.251.234.118/32
  • 121.251.234.119/32
  • 121.251.234.120/32
  • 121.251.234.121/32
  • 121.251.234.122/32
  • 121.251.234.123/32
  • 121.251.234.124/32
  • 121.251.234.125/32
  • 121.251.234.126/32
  • 121.251.234.127/32
  • 121.251.234.128/32
  • 121.251.234.129/32
  • 121.251.234.130/32
  • 121.251.234.131/32
  • 121.251.234.132/32
  • 121.251.234.133/32
  • 121.251.234.134/32
  • 121.251.234.135/32
  • 121.251.234.136/32
  • 121.251.234.137/32
  • 121.251.234.138/32
  • 121.251.234.139/32
  • 121.251.234.140/32
  • 121.251.234.141/32
  • 121.251.234.142/32
  • 121.251.234.143/32
  • 121.251.234.144/32
  • 121.251.234.145/32
  • 121.251.234.146/32
  • 121.251.234.147/32
  • 121.251.234.148/32
  • 121.251.234.149/32
  • 121.251.234.150/32
  • 121.251.234.151/32
  • 121.251.234.152/32
  • 121.251.234.153/32
  • 121.251.234.154/32
  • 121.251.234.155/32
  • 121.251.234.156/32
  • 121.251.234.157/32
  • 121.251.234.158/32
  • 121.251.234.159/32
  • 121.251.234.160/32
  • 121.251.234.161/32
  • 121.251.234.162/32
  • 121.251.234.163/32
  • 121.251.234.164/32
  • 121.251.234.165/32
  • 121.251.234.166/32
  • 121.251.234.167/32
  • 121.251.234.168/32
  • 121.251.234.169/32
  • 121.251.234.170/32
  • 121.251.234.171/32
  • 121.251.234.172/32
  • 121.251.234.173/32
  • 121.251.234.174/32
  • 121.251.234.175/32
  • 121.251.234.176/32
  • 121.251.234.177/32
  • 121.251.234.178/32
  • 121.251.234.179/32
  • 121.251.234.180/32
  • 121.251.234.181/32
  • 121.251.234.182/32
  • 121.251.234.183/32
  • 121.251.234.184/32
  • 121.251.234.185/32
  • 121.251.234.186/32
  • 121.251.234.187/32
  • 121.251.234.188/32
  • 121.251.234.189/32
  • 121.251.234.190/32
  • 121.251.234.191/32
  • 121.251.234.192/32
  • 121.251.234.193/32
  • 121.251.234.194/32
  • 121.251.234.195/32
  • 121.251.234.196/32
  • 121.251.234.197/32
  • 121.251.234.198/32
  • 121.251.234.199/32
  • 121.251.234.200/32
  • 121.251.234.201/32
  • 121.251.234.202/32
  • 121.251.234.203/32
  • 121.251.234.204/32
  • 121.251.234.205/32
  • 121.251.234.206/32
  • 121.251.234.207/32
  • 121.251.234.208/32
  • 121.251.234.209/32
  • 121.251.234.210/32
  • 121.251.234.211/32
  • 121.251.234.212/32
  • 121.251.234.213/32
  • 121.251.234.214/32
  • 121.251.234.215/32
  • 121.251.234.216/32
  • 121.251.234.217/32
  • 121.251.234.218/32
  • 121.251.234.219/32
  • 121.251.234.220/32
  • 121.251.234.221/32
  • 121.251.234.222/32
  • 121.251.234.223/32
  • 121.251.234.224/32
  • 121.251.234.225/32
  • 121.251.234.226/32
  • 121.251.234.227/32
  • 121.251.234.228/32
  • 121.251.234.229/32
  • 121.251.234.230/32
  • 121.251.234.231/32
  • 121.251.234.232/32
  • 121.251.234.233/32
  • 121.251.234.234/32
  • 121.251.234.235/32
  • 121.251.234.236/32
  • 121.251.234.237/32
  • 121.251.234.238/32
  • 121.251.234.239/32
  • 121.251.234.240/32
  • 121.251.234.241/32
  • 121.251.234.242/32
  • 121.251.234.243/32
  • 121.251.234.244/32
  • 121.251.234.245/32
  • 121.251.234.246/32
  • 121.251.234.247/32
  • 121.251.234.248/32
  • 121.251.234.249/32
  • 121.251.234.250/32
  • 121.251.234.251/32
  • 121.251.234.252/32
  • 121.251.234.253/32
  • 121.251.234.254/32
  • 121.251.234.255/32

Get started with 100,000 free lookups: sign up