IP subnet details

202.206.128.0/18

AS4538  — China Education And Research Network Center

Summary

Country
CN China
Domain cernet.net
Size 16,384
Registry APNIC
Network Name BJR-CERNET

Whois

inetnum: 202.204.0.0 - 202.207.255.255
netname: BJR-CERNET
descr: China Education and Research Network
descr: Beijing Regional Network
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: 2020-09-03T09:16:26Z
source: APNIC

irt: IRT-CERNET-AP
address: Network Center,
address: FIT-3-220, 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: [email protected] was validated on 2026-03-05
mnt-by: MAINT-CERNET-AP
last-modified: 2026-05-25T09:07:47Z
source: APNIC

role: ABUSE CERNETAP
country: ZZ
address: Network Center,
address: FIT-3-220, Tsinghua Univ
address: Beijing 100084, China
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 2026-03-05
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2026-03-05T06:40:20Z
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: 202.204.0.0/14
descr: CERNET
origin: AS4538
mnt-by: MAINT-CERNET-AP
last-modified: 2026-06-16T08:44:52Z
source: APNIC

CIDR IP address subranges within 202.206.128.0/18 subnet

  • 202.206.128.0/24
  • 202.206.129.0/24
  • 202.206.130.0/24
  • 202.206.131.0/24
  • 202.206.132.0/24
  • 202.206.133.0/24
  • 202.206.134.0/24
  • 202.206.135.0/24
  • 202.206.136.0/24
  • 202.206.137.0/24
  • 202.206.138.0/24
  • 202.206.139.0/24
  • 202.206.140.0/24
  • 202.206.141.0/24
  • 202.206.142.0/24
  • 202.206.143.0/24
  • 202.206.144.0/24
  • 202.206.145.0/24
  • 202.206.146.0/24
  • 202.206.147.0/24
  • 202.206.148.0/24
  • 202.206.149.0/24
  • 202.206.150.0/24
  • 202.206.151.0/24
  • 202.206.152.0/24
  • 202.206.153.0/24
  • 202.206.154.0/24
  • 202.206.155.0/24
  • 202.206.156.0/24
  • 202.206.157.0/24
  • 202.206.158.0/24
  • 202.206.159.0/24
  • 202.206.160.0/24
  • 202.206.161.0/24
  • 202.206.162.0/24
  • 202.206.163.0/24
  • 202.206.164.0/24
  • 202.206.165.0/24
  • 202.206.166.0/24
  • 202.206.167.0/24
  • 202.206.168.0/24
  • 202.206.169.0/24
  • 202.206.170.0/24
  • 202.206.171.0/24
  • 202.206.172.0/24
  • 202.206.173.0/24
  • 202.206.174.0/24
  • 202.206.175.0/24
  • 202.206.176.0/24
  • 202.206.177.0/24
  • 202.206.178.0/24
  • 202.206.179.0/24
  • 202.206.180.0/24
  • 202.206.181.0/24
  • 202.206.182.0/24
  • 202.206.183.0/24
  • 202.206.184.0/24
  • 202.206.185.0/24
  • 202.206.186.0/24
  • 202.206.187.0/24
  • 202.206.188.0/24
  • 202.206.189.0/24
  • 202.206.190.0/24
  • 202.206.191.0/24

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