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Summary
| Country |
 China
|
| Domain | cernet.net |
| Size | 8,192 |
| Registry | APNIC |
| Network Name | GZR-CERNET |
Whois
inetnum: 222.200.0.0 - 222.203.255.255
netname: GZR-CERNET
descr: China Education and Research Network
descr: Guangzhou 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: 2020-09-03T09:16:13Z
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 2025-08-15
mnt-by: MAINT-CERNET-AP
last-modified: 2025-11-18T00:26:28Z
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 2025-08-15
abuse-mailbox: abuse@cernet.edu.cn
mnt-by: APNIC-ABUSE
last-modified: 2025-08-15T09:38:28Z
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: APNICCIDR IP address subranges within 222.203.0.0/19 subnet
- 222.203.0.0/24
- 222.203.1.0/24
- 222.203.2.0/24
- 222.203.3.0/24
- 222.203.4.0/24
- 222.203.5.0/24
- 222.203.6.0/24
- 222.203.7.0/24
- 222.203.8.0/24
- 222.203.9.0/24
- 222.203.10.0/24
- 222.203.11.0/24
- 222.203.12.0/24
- 222.203.13.0/24
- 222.203.14.0/24
- 222.203.15.0/24
- 222.203.16.0/24
- 222.203.17.0/24
- 222.203.18.0/24
- 222.203.19.0/24
- 222.203.20.0/24
- 222.203.21.0/24
- 222.203.22.0/24
- 222.203.23.0/24
- 222.203.24.0/24
- 222.203.25.0/24
- 222.203.26.0/24
- 222.203.27.0/24
- 222.203.28.0/24
- 222.203.29.0/24
- 222.203.30.0/24
- 222.203.31.0/24