IP subnet details

166.111.64.0/18

AS4538  — China Education And Research Network Center

Summary

Country
CN China
Domain cernic.net
Size 16,384
Registry APNIC
Network Name TSINGHUA-CN

Whois

inetnum: 166.111.0.0 - 166.111.255.255
netname: TSINGHUA-CN
descr: Tsinghua University
country: CN
org: ORG-CEAR1-AP
admin-c: CER-AP
tech-c: CER-AP
abuse-c: AC1685-AP
status: ALLOCATED PORTABLE
mnt-by: APNIC-HM
mnt-lower: MAINT-TSINGHUA-CERNET
mnt-routes: MAINT-TSINGHUA-CERNET
mnt-irt: IRT-CERNET-AP
last-modified: 2023-09-06T06:09:18Z
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

organisation: ORG-CEAR1-AP
org-name: China Education and Research Network (CERNET)
country: CN
address: FIT 3-220,
address: Tsinghua University
phone: +86-10-62785983
fax-no: +86-10-62785933
e-mail: hostmaster@cernic.net
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2018-09-13T12:56:34Z
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: APNIC

CIDR IP address subranges within 166.111.64.0/18 subnet

  • 166.111.64.0/24
  • 166.111.65.0/24
  • 166.111.66.0/24
  • 166.111.67.0/24
  • 166.111.68.0/24
  • 166.111.69.0/24
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  • 166.111.72.0/24
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  • 166.111.74.0/24
  • 166.111.75.0/24
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  • 166.111.86.0/24
  • 166.111.87.0/24
  • 166.111.88.0/24
  • 166.111.89.0/24
  • 166.111.90.0/24
  • 166.111.91.0/24
  • 166.111.92.0/24
  • 166.111.93.0/24
  • 166.111.94.0/24
  • 166.111.95.0/24
  • 166.111.96.0/24
  • 166.111.97.0/24
  • 166.111.98.0/24
  • 166.111.99.0/24
  • 166.111.100.0/24
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  • 166.111.102.0/24
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  • 166.111.105.0/24
  • 166.111.106.0/24
  • 166.111.107.0/24
  • 166.111.108.0/24
  • 166.111.109.0/24
  • 166.111.110.0/24
  • 166.111.111.0/24
  • 166.111.112.0/24
  • 166.111.113.0/24
  • 166.111.114.0/24
  • 166.111.115.0/24
  • 166.111.116.0/24
  • 166.111.117.0/24
  • 166.111.118.0/24
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  • 166.111.120.0/24
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  • 166.111.123.0/24
  • 166.111.124.0/24
  • 166.111.125.0/24
  • 166.111.126.0/24
  • 166.111.127.0/24

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