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Summary
| Country |
 China
|
| Domain | cernet.net |
| Size | 8,192 |
| Registry | APNIC |
| Network Name | BJR-CERNET |
Whois
inetnum: 183.172.0.0 - 183.175.255.255
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: NS2.NET.EDU.CN
remarks: DNS.EDU.CN
remarks: DNS2.EDU.CN
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 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: 2026-03-05T06:39:56Z
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: [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: 183.172.0.0/14
descr: CERNET
origin: AS4538
mnt-by: MAINT-CERNET-AP
last-modified: 2009-11-25T07:36:58Z
source: APNICCIDR IP address subranges within 183.175.128.0/19 subnet
- 183.175.128.0/24
- 183.175.129.0/24
- 183.175.130.0/24
- 183.175.131.0/24
- 183.175.132.0/24
- 183.175.133.0/24
- 183.175.134.0/24
- 183.175.135.0/24
- 183.175.136.0/24
- 183.175.137.0/24
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- 183.175.154.0/24
- 183.175.155.0/24
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- 183.175.157.0/24
- 183.175.158.0/24
- 183.175.159.0/24