Summary

Country
CN China
Domain cernic.net
Size 79,228,162,514,264,340,000,000,000,000
Registry APNIC
Network Name CERNET

Whois

[whois.apnic.net]



inet6num: 240c:c000::/20
netname: CERNET
descr: China Education and Research Network
descr: Tsinghua University
country: CN
org: ORG-CEAR1-AP
admin-c: CER-AP
tech-c: CER-AP
abuse-c: AC1685-AP
status: ALLOCATED PORTABLE
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: 2023-08-28T06:40:49Z
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: [email protected]
abuse-mailbox: [email protected]
admin-c: CER-AP
tech-c: CER-AP
auth: # Filtered
remarks: timezone GMT+8
remarks: http://www.ccert.edu.cn
remarks: [email protected] was validated on 2023-12-14
mnt-by: MAINT-CERNET-AP
last-modified: 2023-12-14T03:44:39Z
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: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2018-09-13T12:56:34Z
source: APNIC

role: ABUSE CERNETAP
address: Network Research Center,
address: Main Bldg, Tsinghua Univ
address: Beijing 100084, China
country: ZZ
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 2023-12-14
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2023-12-14T03:44:51Z
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


route6: 240c:c000::/20
descr: CERNET
origin: AS23910
mnt-by: MAINT-CERNET-AP
last-modified: 2020-08-31T01:22:02Z
source: APNIC



CIDR IP address subranges within 240c:c901::/32 subnet

  • 240c:c901:0:0:0:0:0:0/40
  • 240c:c901:100:0:0:0:0:0/40
  • 240c:c901:200:0:0:0:0:0/40
  • 240c:c901:300:0:0:0:0:0/40
  • 240c:c901:400:0:0:0:0:0/40
  • 240c:c901:500:0:0:0:0:0/40
  • 240c:c901:600:0:0:0:0:0/40
  • 240c:c901:700:0:0:0:0:0/40
  • 240c:c901:800:0:0:0:0:0/40
  • 240c:c901:900:0:0:0:0:0/40
  • 240c:c901:a00:0:0:0:0:0/40
  • 240c:c901:b00:0:0:0:0:0/40
  • 240c:c901:c00:0:0:0:0:0/40
  • 240c:c901:d00:0:0:0:0:0/40
  • 240c:c901:e00:0:0:0:0:0/40
  • 240c:c901:f00:0:0:0:0:0/40
  • 240c:c901:1000:0:0:0:0:0/40
  • 240c:c901:1100:0:0:0:0:0/40
  • 240c:c901:1200:0:0:0:0:0/40
  • 240c:c901:1300:0:0:0:0:0/40
  • 240c:c901:1400:0:0:0:0:0/40
  • 240c:c901:1500:0:0:0:0:0/40
  • 240c:c901:1600:0:0:0:0:0/40
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  • 240c:c901:1800:0:0:0:0:0/40
  • 240c:c901:1900:0:0:0:0:0/40
  • 240c:c901:1a00:0:0:0:0:0/40
  • 240c:c901:1b00:0:0:0:0:0/40
  • 240c:c901:1c00:0:0:0:0:0/40
  • 240c:c901:1d00:0:0:0:0:0/40
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  • 240c:c901:2000:0:0:0:0:0/40
  • 240c:c901:2100:0:0:0:0:0/40
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  • 240c:c901:2400:0:0:0:0:0/40
  • 240c:c901:2500:0:0:0:0:0/40
  • 240c:c901:2600:0:0:0:0:0/40
  • 240c:c901:2700:0:0:0:0:0/40
  • 240c:c901:2800:0:0:0:0:0/40
  • 240c:c901:2900:0:0:0:0:0/40
  • 240c:c901:2a00:0:0:0:0:0/40
  • 240c:c901:2b00:0:0:0:0:0/40
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  • 240c:c901:3000:0:0:0:0:0/40
  • 240c:c901:3100:0:0:0:0:0/40
  • 240c:c901:3200:0:0:0:0:0/40
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  • 240c:c901:3a00:0:0:0:0:0/40
  • 240c:c901:3b00:0:0:0:0:0/40
  • 240c:c901:3c00:0:0:0:0:0/40
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  • 240c:c901:4000:0:0:0:0:0/40
  • 240c:c901:4100:0:0:0:0:0/40
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  • 240c:c901:5000:0:0:0:0:0/40
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  • 240c:c901:6000:0:0:0:0:0/40
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  • 240c:c901:6800:0:0:0:0:0/40
  • 240c:c901:6900:0:0:0:0:0/40
  • 240c:c901:6a00:0:0:0:0:0/40
  • 240c:c901:6b00:0:0:0:0:0/40
  • 240c:c901:6c00:0:0:0:0:0/40
  • 240c:c901:6d00:0:0:0:0:0/40
  • 240c:c901:6e00:0:0:0:0:0/40
  • 240c:c901:6f00:0:0:0:0:0/40
  • 240c:c901:7000:0:0:0:0:0/40
  • 240c:c901:7100:0:0:0:0:0/40
  • 240c:c901:7200:0:0:0:0:0/40
  • 240c:c901:7300:0:0:0:0:0/40
  • 240c:c901:7400:0:0:0:0:0/40
  • 240c:c901:7500:0:0:0:0:0/40
  • 240c:c901:7600:0:0:0:0:0/40
  • 240c:c901:7700:0:0:0:0:0/40
  • 240c:c901:7800:0:0:0:0:0/40
  • 240c:c901:7900:0:0:0:0:0/40
  • 240c:c901:7a00:0:0:0:0:0/40
  • 240c:c901:7b00:0:0:0:0:0/40
  • 240c:c901:7c00:0:0:0:0:0/40
  • 240c:c901:7d00:0:0:0:0:0/40
  • 240c:c901:7e00:0:0:0:0:0/40
  • 240c:c901:7f00:0:0:0:0:0/40
  • 240c:c901:8000:0:0:0:0:0/40
  • 240c:c901:8100:0:0:0:0:0/40
  • 240c:c901:8200:0:0:0:0:0/40
  • 240c:c901:8300:0:0:0:0:0/40
  • 240c:c901:8400:0:0:0:0:0/40
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  • 240c:c901:9200:0:0:0:0:0/40
  • 240c:c901:9300:0:0:0:0:0/40
  • 240c:c901:9400:0:0:0:0:0/40
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  • 240c:c901:9800:0:0:0:0:0/40
  • 240c:c901:9900:0:0:0:0:0/40
  • 240c:c901:9a00:0:0:0:0:0/40
  • 240c:c901:9b00:0:0:0:0:0/40
  • 240c:c901:9c00:0:0:0:0:0/40
  • 240c:c901:9d00:0:0:0:0:0/40
  • 240c:c901:9e00:0:0:0:0:0/40
  • 240c:c901:9f00:0:0:0:0:0/40
  • 240c:c901:a000:0:0:0:0:0/40
  • 240c:c901:a100:0:0:0:0:0/40
  • 240c:c901:a200:0:0:0:0:0/40
  • 240c:c901:a300:0:0:0:0:0/40
  • 240c:c901:a400:0:0:0:0:0/40
  • 240c:c901:a500:0:0:0:0:0/40
  • 240c:c901:a600:0:0:0:0:0/40
  • 240c:c901:a700:0:0:0:0:0/40
  • 240c:c901:a800:0:0:0:0:0/40
  • 240c:c901:a900:0:0:0:0:0/40
  • 240c:c901:aa00:0:0:0:0:0/40
  • 240c:c901:ab00:0:0:0:0:0/40
  • 240c:c901:ac00:0:0:0:0:0/40
  • 240c:c901:ad00:0:0:0:0:0/40
  • 240c:c901:ae00:0:0:0:0:0/40
  • 240c:c901:af00:0:0:0:0:0/40
  • 240c:c901:b000:0:0:0:0:0/40
  • 240c:c901:b100:0:0:0:0:0/40
  • 240c:c901:b200:0:0:0:0:0/40
  • 240c:c901:b300:0:0:0:0:0/40
  • 240c:c901:b400:0:0:0:0:0/40
  • 240c:c901:b500:0:0:0:0:0/40
  • 240c:c901:b600:0:0:0:0:0/40
  • 240c:c901:b700:0:0:0:0:0/40
  • 240c:c901:b800:0:0:0:0:0/40
  • 240c:c901:b900:0:0:0:0:0/40
  • 240c:c901:ba00:0:0:0:0:0/40
  • 240c:c901:bb00:0:0:0:0:0/40
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  • 240c:c901:c000:0:0:0:0:0/40
  • 240c:c901:c100:0:0:0:0:0/40
  • 240c:c901:c200:0:0:0:0:0/40
  • 240c:c901:c300:0:0:0:0:0/40
  • 240c:c901:c400:0:0:0:0:0/40
  • 240c:c901:c500:0:0:0:0:0/40
  • 240c:c901:c600:0:0:0:0:0/40
  • 240c:c901:c700:0:0:0:0:0/40
  • 240c:c901:c800:0:0:0:0:0/40
  • 240c:c901:c900:0:0:0:0:0/40
  • 240c:c901:ca00:0:0:0:0:0/40
  • 240c:c901:cb00:0:0:0:0:0/40
  • 240c:c901:cc00:0:0:0:0:0/40
  • 240c:c901:cd00:0:0:0:0:0/40
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  • 240c:c901:d500:0:0:0:0:0/40
  • 240c:c901:d600:0:0:0:0:0/40
  • 240c:c901:d700:0:0:0:0:0/40
  • 240c:c901:d800:0:0:0:0:0/40
  • 240c:c901:d900:0:0:0:0:0/40
  • 240c:c901:da00:0:0:0:0:0/40
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  • 240c:c901:e100:0:0:0:0:0/40
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  • 240c:c901:e500:0:0:0:0:0/40
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  • 240c:c901:e800:0:0:0:0:0/40
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  • 240c:c901:f200:0:0:0:0:0/40
  • 240c:c901:f300:0:0:0:0:0/40
  • 240c:c901:f400:0:0:0:0:0/40
  • 240c:c901:f500:0:0:0:0:0/40
  • 240c:c901:f600:0:0:0:0:0/40
  • 240c:c901:f700:0:0:0:0:0/40
  • 240c:c901:f800:0:0:0:0:0/40
  • 240c:c901:f900:0:0:0:0:0/40
  • 240c:c901:fa00:0:0:0:0:0/40
  • 240c:c901:fb00:0:0:0:0:0/40
  • 240c:c901:fc00:0:0:0:0:0/40
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  • 240c:c901:fe00:0:0:0:0:0/40
  • 240c:c901:ff00:0:0:0:0:0/40

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