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:c701::/32 subnet

  • 240c:c701:0:0:0:0:0:0/40
  • 240c:c701:100:0:0:0:0:0/40
  • 240c:c701:200:0:0:0:0:0/40
  • 240c:c701:300:0:0:0:0:0/40
  • 240c:c701:400:0:0:0:0:0/40
  • 240c:c701:500:0:0:0:0:0/40
  • 240c:c701:600:0:0:0:0:0/40
  • 240c:c701:700:0:0:0:0:0/40
  • 240c:c701:800:0:0:0:0:0/40
  • 240c:c701:900:0:0:0:0:0/40
  • 240c:c701:a00:0:0:0:0:0/40
  • 240c:c701:b00:0:0:0:0:0/40
  • 240c:c701:c00:0:0:0:0:0/40
  • 240c:c701:d00:0:0:0:0:0/40
  • 240c:c701:e00:0:0:0:0:0/40
  • 240c:c701:f00:0:0:0:0:0/40
  • 240c:c701:1000:0:0:0:0:0/40
  • 240c:c701:1100:0:0:0:0:0/40
  • 240c:c701:1200:0:0:0:0:0/40
  • 240c:c701:1300:0:0:0:0:0/40
  • 240c:c701:1400:0:0:0:0:0/40
  • 240c:c701:1500:0:0:0:0:0/40
  • 240c:c701:1600:0:0:0:0:0/40
  • 240c:c701:1700:0:0:0:0:0/40
  • 240c:c701:1800:0:0:0:0:0/40
  • 240c:c701:1900:0:0:0:0:0/40
  • 240c:c701:1a00:0:0:0:0:0/40
  • 240c:c701:1b00:0:0:0:0:0/40
  • 240c:c701:1c00:0:0:0:0:0/40
  • 240c:c701:1d00:0:0:0:0:0/40
  • 240c:c701:1e00:0:0:0:0:0/40
  • 240c:c701:1f00:0:0:0:0:0/40
  • 240c:c701:2000:0:0:0:0:0/40
  • 240c:c701:2100:0:0:0:0:0/40
  • 240c:c701:2200:0:0:0:0:0/40
  • 240c:c701:2300:0:0:0:0:0/40
  • 240c:c701:2400:0:0:0:0:0/40
  • 240c:c701:2500:0:0:0:0:0/40
  • 240c:c701:2600:0:0:0:0:0/40
  • 240c:c701:2700:0:0:0:0:0/40
  • 240c:c701:2800:0:0:0:0:0/40
  • 240c:c701:2900:0:0:0:0:0/40
  • 240c:c701:2a00:0:0:0:0:0/40
  • 240c:c701:2b00:0:0:0:0:0/40
  • 240c:c701:2c00:0:0:0:0:0/40
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  • 240c:c701:3000:0:0:0:0:0/40
  • 240c:c701:3100:0:0:0:0:0/40
  • 240c:c701:3200:0:0:0:0:0/40
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  • 240c:c701:3900:0:0:0:0:0/40
  • 240c:c701:3a00:0:0:0:0:0/40
  • 240c:c701:3b00:0:0:0:0:0/40
  • 240c:c701:3c00:0:0:0:0:0/40
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  • 240c:c701:3f00:0:0:0:0:0/40
  • 240c:c701:4000:0:0:0:0:0/40
  • 240c:c701:4100:0:0:0:0:0/40
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  • 240c:c701:5000:0:0:0:0:0/40
  • 240c:c701:5100:0:0:0:0:0/40
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  • 240c:c701:5f00:0:0:0:0:0/40
  • 240c:c701:6000:0:0:0:0:0/40
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  • 240c:c701:6600:0:0:0:0:0/40
  • 240c:c701:6700:0:0:0:0:0/40
  • 240c:c701:6800:0:0:0:0:0/40
  • 240c:c701:6900:0:0:0:0:0/40
  • 240c:c701:6a00:0:0:0:0:0/40
  • 240c:c701:6b00:0:0:0:0:0/40
  • 240c:c701:6c00:0:0:0:0:0/40
  • 240c:c701:6d00:0:0:0:0:0/40
  • 240c:c701:6e00:0:0:0:0:0/40
  • 240c:c701:6f00:0:0:0:0:0/40
  • 240c:c701:7000:0:0:0:0:0/40
  • 240c:c701:7100:0:0:0:0:0/40
  • 240c:c701:7200:0:0:0:0:0/40
  • 240c:c701:7300:0:0:0:0:0/40
  • 240c:c701:7400:0:0:0:0:0/40
  • 240c:c701:7500:0:0:0:0:0/40
  • 240c:c701:7600:0:0:0:0:0/40
  • 240c:c701:7700:0:0:0:0:0/40
  • 240c:c701:7800:0:0:0:0:0/40
  • 240c:c701:7900:0:0:0:0:0/40
  • 240c:c701:7a00:0:0:0:0:0/40
  • 240c:c701:7b00:0:0:0:0:0/40
  • 240c:c701:7c00:0:0:0:0:0/40
  • 240c:c701:7d00:0:0:0:0:0/40
  • 240c:c701:7e00:0:0:0:0:0/40
  • 240c:c701:7f00:0:0:0:0:0/40
  • 240c:c701:8000:0:0:0:0:0/40
  • 240c:c701:8100:0:0:0:0:0/40
  • 240c:c701:8200:0:0:0:0:0/40
  • 240c:c701:8300:0:0:0:0:0/40
  • 240c:c701:8400:0:0:0:0:0/40
  • 240c:c701:8500:0:0:0:0:0/40
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  • 240c:c701:8700:0:0:0:0:0/40
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  • 240c:c701:8900:0:0:0:0:0/40
  • 240c:c701:8a00:0:0:0:0:0/40
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  • 240c:c701:8c00:0:0:0:0:0/40
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  • 240c:c701:9100:0:0:0:0:0/40
  • 240c:c701:9200:0:0:0:0:0/40
  • 240c:c701:9300:0:0:0:0:0/40
  • 240c:c701:9400:0:0:0:0:0/40
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  • 240c:c701:9600:0:0:0:0:0/40
  • 240c:c701:9700:0:0:0:0:0/40
  • 240c:c701:9800:0:0:0:0:0/40
  • 240c:c701:9900:0:0:0:0:0/40
  • 240c:c701:9a00:0:0:0:0:0/40
  • 240c:c701:9b00:0:0:0:0:0/40
  • 240c:c701:9c00:0:0:0:0:0/40
  • 240c:c701:9d00:0:0:0:0:0/40
  • 240c:c701:9e00:0:0:0:0:0/40
  • 240c:c701:9f00:0:0:0:0:0/40
  • 240c:c701:a000:0:0:0:0:0/40
  • 240c:c701:a100:0:0:0:0:0/40
  • 240c:c701:a200:0:0:0:0:0/40
  • 240c:c701:a300:0:0:0:0:0/40
  • 240c:c701:a400:0:0:0:0:0/40
  • 240c:c701:a500:0:0:0:0:0/40
  • 240c:c701:a600:0:0:0:0:0/40
  • 240c:c701:a700:0:0:0:0:0/40
  • 240c:c701:a800:0:0:0:0:0/40
  • 240c:c701:a900:0:0:0:0:0/40
  • 240c:c701:aa00:0:0:0:0:0/40
  • 240c:c701:ab00:0:0:0:0:0/40
  • 240c:c701:ac00:0:0:0:0:0/40
  • 240c:c701:ad00:0:0:0:0:0/40
  • 240c:c701:ae00:0:0:0:0:0/40
  • 240c:c701:af00:0:0:0:0:0/40
  • 240c:c701:b000:0:0:0:0:0/40
  • 240c:c701:b100:0:0:0:0:0/40
  • 240c:c701:b200:0:0:0:0:0/40
  • 240c:c701:b300:0:0:0:0:0/40
  • 240c:c701:b400:0:0:0:0:0/40
  • 240c:c701:b500:0:0:0:0:0/40
  • 240c:c701:b600:0:0:0:0:0/40
  • 240c:c701:b700:0:0:0:0:0/40
  • 240c:c701:b800:0:0:0:0:0/40
  • 240c:c701:b900:0:0:0:0:0/40
  • 240c:c701:ba00:0:0:0:0:0/40
  • 240c:c701:bb00:0:0:0:0:0/40
  • 240c:c701:bc00:0:0:0:0:0/40
  • 240c:c701:bd00:0:0:0:0:0/40
  • 240c:c701:be00:0:0:0:0:0/40
  • 240c:c701:bf00:0:0:0:0:0/40
  • 240c:c701:c000:0:0:0:0:0/40
  • 240c:c701:c100:0:0:0:0:0/40
  • 240c:c701:c200:0:0:0:0:0/40
  • 240c:c701:c300:0:0:0:0:0/40
  • 240c:c701:c400:0:0:0:0:0/40
  • 240c:c701:c500:0:0:0:0:0/40
  • 240c:c701:c600:0:0:0:0:0/40
  • 240c:c701:c700:0:0:0:0:0/40
  • 240c:c701:c800:0:0:0:0:0/40
  • 240c:c701:c900:0:0:0:0:0/40
  • 240c:c701:ca00:0:0:0:0:0/40
  • 240c:c701:cb00:0:0:0:0:0/40
  • 240c:c701:cc00:0:0:0:0:0/40
  • 240c:c701:cd00:0:0:0:0:0/40
  • 240c:c701:ce00:0:0:0:0:0/40
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  • 240c:c701:d000:0:0:0:0:0/40
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  • 240c:c701:d200:0:0:0:0:0/40
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  • 240c:c701:d500:0:0:0:0:0/40
  • 240c:c701:d600:0:0:0:0:0/40
  • 240c:c701:d700:0:0:0:0:0/40
  • 240c:c701:d800:0:0:0:0:0/40
  • 240c:c701:d900:0:0:0:0:0/40
  • 240c:c701:da00:0:0:0:0:0/40
  • 240c:c701:db00:0:0:0:0:0/40
  • 240c:c701:dc00:0:0:0:0:0/40
  • 240c:c701:dd00:0:0:0:0:0/40
  • 240c:c701:de00:0:0:0:0:0/40
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  • 240c:c701:e000:0:0:0:0:0/40
  • 240c:c701:e100:0:0:0:0:0/40
  • 240c:c701:e200:0:0:0:0:0/40
  • 240c:c701:e300:0:0:0:0:0/40
  • 240c:c701:e400:0:0:0:0:0/40
  • 240c:c701:e500:0:0:0:0:0/40
  • 240c:c701:e600:0:0:0:0:0/40
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  • 240c:c701:e800:0:0:0:0:0/40
  • 240c:c701:e900:0:0:0:0:0/40
  • 240c:c701:ea00:0:0:0:0:0/40
  • 240c:c701:eb00:0:0:0:0:0/40
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  • 240c:c701:ed00:0:0:0:0:0/40
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  • 240c:c701:f000:0:0:0:0:0/40
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  • 240c:c701:f200:0:0:0:0:0/40
  • 240c:c701:f300:0:0:0:0:0/40
  • 240c:c701:f400:0:0:0:0:0/40
  • 240c:c701:f500:0:0:0:0:0/40
  • 240c:c701:f600:0:0:0:0:0/40
  • 240c:c701:f700:0:0:0:0:0/40
  • 240c:c701:f800:0:0:0:0:0/40
  • 240c:c701:f900:0:0:0:0:0/40
  • 240c:c701:fa00:0:0:0:0:0/40
  • 240c:c701:fb00:0:0:0:0:0/40
  • 240c:c701:fc00:0:0:0:0:0/40
  • 240c:c701:fd00:0:0:0:0:0/40
  • 240c:c701:fe00:0:0:0:0:0/40
  • 240c:c701:ff00:0:0:0:0:0/40

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