Summary
| Country |
 China
|
| Domain | cernet.net |
| Size | 256 |
| IP Range |
222.199.50.0 – 222.199.50.255
Convert CIDR to IP range
|
| Registry | APNIC |
| Network Name | BJR-CERNET |
Whois
inetnum: 222.199.0.0 - 222.199.255.255
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: 2020-09-03T09:16:05Z
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: 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: abuse@cernet.edu.cn was validated on 2026-09-10
mnt-by: MAINT-CERNET-AP
last-modified: 2026-09-10T07:51:56Z
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: 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 2026-09-10
abuse-mailbox: abuse@cernet.edu.cn
mnt-by: APNIC-ABUSE
last-modified: 2026-09-10T07:52:32Z
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
route: 222.199.0.0/16
descr: CERNET
origin: AS4538
mnt-by: MAINT-CERNET-AP
last-modified: 2026-06-17T08:12:16Z
source: APNICCIDR IP address subranges within 222.199.50.0/24 subnet
- 222.199.50.0
- 222.199.50.1
- 222.199.50.2
- 222.199.50.3
- 222.199.50.4
- 222.199.50.5
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- 222.199.50.255