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:c410::/32 subnet

  • 240c:c410:0:0:0:0:0:0/40
  • 240c:c410:100:0:0:0:0:0/40
  • 240c:c410:200:0:0:0:0:0/40
  • 240c:c410:300:0:0:0:0:0/40
  • 240c:c410:400:0:0:0:0:0/40
  • 240c:c410:500:0:0:0:0:0/40
  • 240c:c410:600:0:0:0:0:0/40
  • 240c:c410:700:0:0:0:0:0/40
  • 240c:c410:800:0:0:0:0:0/40
  • 240c:c410:900:0:0:0:0:0/40
  • 240c:c410:a00:0:0:0:0:0/40
  • 240c:c410:b00:0:0:0:0:0/40
  • 240c:c410:c00:0:0:0:0:0/40
  • 240c:c410:d00:0:0:0:0:0/40
  • 240c:c410:e00:0:0:0:0:0/40
  • 240c:c410:f00:0:0:0:0:0/40
  • 240c:c410:1000:0:0:0:0:0/40
  • 240c:c410:1100:0:0:0:0:0/40
  • 240c:c410:1200:0:0:0:0:0/40
  • 240c:c410:1300:0:0:0:0:0/40
  • 240c:c410:1400:0:0:0:0:0/40
  • 240c:c410:1500:0:0:0:0:0/40
  • 240c:c410:1600:0:0:0:0:0/40
  • 240c:c410:1700:0:0:0:0:0/40
  • 240c:c410:1800:0:0:0:0:0/40
  • 240c:c410:1900:0:0:0:0:0/40
  • 240c:c410:1a00:0:0:0:0:0/40
  • 240c:c410:1b00:0:0:0:0:0/40
  • 240c:c410:1c00:0:0:0:0:0/40
  • 240c:c410:1d00:0:0:0:0:0/40
  • 240c:c410:1e00:0:0:0:0:0/40
  • 240c:c410:1f00:0:0:0:0:0/40
  • 240c:c410:2000:0:0:0:0:0/40
  • 240c:c410:2100:0:0:0:0:0/40
  • 240c:c410:2200:0:0:0:0:0/40
  • 240c:c410:2300:0:0:0:0:0/40
  • 240c:c410:2400:0:0:0:0:0/40
  • 240c:c410:2500:0:0:0:0:0/40
  • 240c:c410:2600:0:0:0:0:0/40
  • 240c:c410:2700:0:0:0:0:0/40
  • 240c:c410:2800:0:0:0:0:0/40
  • 240c:c410:2900:0:0:0:0:0/40
  • 240c:c410:2a00:0:0:0:0:0/40
  • 240c:c410:2b00:0:0:0:0:0/40
  • 240c:c410:2c00:0:0:0:0:0/40
  • 240c:c410:2d00:0:0:0:0:0/40
  • 240c:c410:2e00:0:0:0:0:0/40
  • 240c:c410:2f00:0:0:0:0:0/40
  • 240c:c410:3000:0:0:0:0:0/40
  • 240c:c410:3100:0:0:0:0:0/40
  • 240c:c410:3200:0:0:0:0:0/40
  • 240c:c410:3300:0:0:0:0:0/40
  • 240c:c410:3400:0:0:0:0:0/40
  • 240c:c410:3500:0:0:0:0:0/40
  • 240c:c410:3600:0:0:0:0:0/40
  • 240c:c410:3700:0:0:0:0:0/40
  • 240c:c410:3800:0:0:0:0:0/40
  • 240c:c410:3900:0:0:0:0:0/40
  • 240c:c410:3a00:0:0:0:0:0/40
  • 240c:c410:3b00:0:0:0:0:0/40
  • 240c:c410:3c00:0:0:0:0:0/40
  • 240c:c410:3d00:0:0:0:0:0/40
  • 240c:c410:3e00:0:0:0:0:0/40
  • 240c:c410:3f00:0:0:0:0:0/40
  • 240c:c410:4000:0:0:0:0:0/40
  • 240c:c410:4100:0:0:0:0:0/40
  • 240c:c410:4200:0:0:0:0:0/40
  • 240c:c410:4300:0:0:0:0:0/40
  • 240c:c410:4400:0:0:0:0:0/40
  • 240c:c410:4500:0:0:0:0:0/40
  • 240c:c410:4600:0:0:0:0:0/40
  • 240c:c410:4700:0:0:0:0:0/40
  • 240c:c410:4800:0:0:0:0:0/40
  • 240c:c410:4900:0:0:0:0:0/40
  • 240c:c410:4a00:0:0:0:0:0/40
  • 240c:c410:4b00:0:0:0:0:0/40
  • 240c:c410:4c00:0:0:0:0:0/40
  • 240c:c410:4d00:0:0:0:0:0/40
  • 240c:c410:4e00:0:0:0:0:0/40
  • 240c:c410:4f00:0:0:0:0:0/40
  • 240c:c410:5000:0:0:0:0:0/40
  • 240c:c410:5100:0:0:0:0:0/40
  • 240c:c410:5200:0:0:0:0:0/40
  • 240c:c410:5300:0:0:0:0:0/40
  • 240c:c410:5400:0:0:0:0:0/40
  • 240c:c410:5500:0:0:0:0:0/40
  • 240c:c410:5600:0:0:0:0:0/40
  • 240c:c410:5700:0:0:0:0:0/40
  • 240c:c410:5800:0:0:0:0:0/40
  • 240c:c410:5900:0:0:0:0:0/40
  • 240c:c410:5a00:0:0:0:0:0/40
  • 240c:c410:5b00:0:0:0:0:0/40
  • 240c:c410:5c00:0:0:0:0:0/40
  • 240c:c410:5d00:0:0:0:0:0/40
  • 240c:c410:5e00:0:0:0:0:0/40
  • 240c:c410:5f00:0:0:0:0:0/40
  • 240c:c410:6000:0:0:0:0:0/40
  • 240c:c410:6100:0:0:0:0:0/40
  • 240c:c410:6200:0:0:0:0:0/40
  • 240c:c410:6300:0:0:0:0:0/40
  • 240c:c410:6400:0:0:0:0:0/40
  • 240c:c410:6500:0:0:0:0:0/40
  • 240c:c410:6600:0:0:0:0:0/40
  • 240c:c410:6700:0:0:0:0:0/40
  • 240c:c410:6800:0:0:0:0:0/40
  • 240c:c410:6900:0:0:0:0:0/40
  • 240c:c410:6a00:0:0:0:0:0/40
  • 240c:c410:6b00:0:0:0:0:0/40
  • 240c:c410:6c00:0:0:0:0:0/40
  • 240c:c410:6d00:0:0:0:0:0/40
  • 240c:c410:6e00:0:0:0:0:0/40
  • 240c:c410:6f00:0:0:0:0:0/40
  • 240c:c410:7000:0:0:0:0:0/40
  • 240c:c410:7100:0:0:0:0:0/40
  • 240c:c410:7200:0:0:0:0:0/40
  • 240c:c410:7300:0:0:0:0:0/40
  • 240c:c410:7400:0:0:0:0:0/40
  • 240c:c410:7500:0:0:0:0:0/40
  • 240c:c410:7600:0:0:0:0:0/40
  • 240c:c410:7700:0:0:0:0:0/40
  • 240c:c410:7800:0:0:0:0:0/40
  • 240c:c410:7900:0:0:0:0:0/40
  • 240c:c410:7a00:0:0:0:0:0/40
  • 240c:c410:7b00:0:0:0:0:0/40
  • 240c:c410:7c00:0:0:0:0:0/40
  • 240c:c410:7d00:0:0:0:0:0/40
  • 240c:c410:7e00:0:0:0:0:0/40
  • 240c:c410:7f00:0:0:0:0:0/40
  • 240c:c410:8000:0:0:0:0:0/40
  • 240c:c410:8100:0:0:0:0:0/40
  • 240c:c410:8200:0:0:0:0:0/40
  • 240c:c410:8300:0:0:0:0:0/40
  • 240c:c410:8400:0:0:0:0:0/40
  • 240c:c410:8500:0:0:0:0:0/40
  • 240c:c410:8600:0:0:0:0:0/40
  • 240c:c410:8700:0:0:0:0:0/40
  • 240c:c410:8800:0:0:0:0:0/40
  • 240c:c410:8900:0:0:0:0:0/40
  • 240c:c410:8a00:0:0:0:0:0/40
  • 240c:c410:8b00:0:0:0:0:0/40
  • 240c:c410:8c00:0:0:0:0:0/40
  • 240c:c410:8d00:0:0:0:0:0/40
  • 240c:c410:8e00:0:0:0:0:0/40
  • 240c:c410:8f00:0:0:0:0:0/40
  • 240c:c410:9000:0:0:0:0:0/40
  • 240c:c410:9100:0:0:0:0:0/40
  • 240c:c410:9200:0:0:0:0:0/40
  • 240c:c410:9300:0:0:0:0:0/40
  • 240c:c410:9400:0:0:0:0:0/40
  • 240c:c410:9500:0:0:0:0:0/40
  • 240c:c410:9600:0:0:0:0:0/40
  • 240c:c410:9700:0:0:0:0:0/40
  • 240c:c410:9800:0:0:0:0:0/40
  • 240c:c410:9900:0:0:0:0:0/40
  • 240c:c410:9a00:0:0:0:0:0/40
  • 240c:c410:9b00:0:0:0:0:0/40
  • 240c:c410:9c00:0:0:0:0:0/40
  • 240c:c410:9d00:0:0:0:0:0/40
  • 240c:c410:9e00:0:0:0:0:0/40
  • 240c:c410:9f00:0:0:0:0:0/40
  • 240c:c410:a000:0:0:0:0:0/40
  • 240c:c410:a100:0:0:0:0:0/40
  • 240c:c410:a200:0:0:0:0:0/40
  • 240c:c410:a300:0:0:0:0:0/40
  • 240c:c410:a400:0:0:0:0:0/40
  • 240c:c410:a500:0:0:0:0:0/40
  • 240c:c410:a600:0:0:0:0:0/40
  • 240c:c410:a700:0:0:0:0:0/40
  • 240c:c410:a800:0:0:0:0:0/40
  • 240c:c410:a900:0:0:0:0:0/40
  • 240c:c410:aa00:0:0:0:0:0/40
  • 240c:c410:ab00:0:0:0:0:0/40
  • 240c:c410:ac00:0:0:0:0:0/40
  • 240c:c410:ad00:0:0:0:0:0/40
  • 240c:c410:ae00:0:0:0:0:0/40
  • 240c:c410:af00:0:0:0:0:0/40
  • 240c:c410:b000:0:0:0:0:0/40
  • 240c:c410:b100:0:0:0:0:0/40
  • 240c:c410:b200:0:0:0:0:0/40
  • 240c:c410:b300:0:0:0:0:0/40
  • 240c:c410:b400:0:0:0:0:0/40
  • 240c:c410:b500:0:0:0:0:0/40
  • 240c:c410:b600:0:0:0:0:0/40
  • 240c:c410:b700:0:0:0:0:0/40
  • 240c:c410:b800:0:0:0:0:0/40
  • 240c:c410:b900:0:0:0:0:0/40
  • 240c:c410:ba00:0:0:0:0:0/40
  • 240c:c410:bb00:0:0:0:0:0/40
  • 240c:c410:bc00:0:0:0:0:0/40
  • 240c:c410:bd00:0:0:0:0:0/40
  • 240c:c410:be00:0:0:0:0:0/40
  • 240c:c410:bf00:0:0:0:0:0/40
  • 240c:c410:c000:0:0:0:0:0/40
  • 240c:c410:c100:0:0:0:0:0/40
  • 240c:c410:c200:0:0:0:0:0/40
  • 240c:c410:c300:0:0:0:0:0/40
  • 240c:c410:c400:0:0:0:0:0/40
  • 240c:c410:c500:0:0:0:0:0/40
  • 240c:c410:c600:0:0:0:0:0/40
  • 240c:c410:c700:0:0:0:0:0/40
  • 240c:c410:c800:0:0:0:0:0/40
  • 240c:c410:c900:0:0:0:0:0/40
  • 240c:c410:ca00:0:0:0:0:0/40
  • 240c:c410:cb00:0:0:0:0:0/40
  • 240c:c410:cc00:0:0:0:0:0/40
  • 240c:c410:cd00:0:0:0:0:0/40
  • 240c:c410:ce00:0:0:0:0:0/40
  • 240c:c410:cf00:0:0:0:0:0/40
  • 240c:c410:d000:0:0:0:0:0/40
  • 240c:c410:d100:0:0:0:0:0/40
  • 240c:c410:d200:0:0:0:0:0/40
  • 240c:c410:d300:0:0:0:0:0/40
  • 240c:c410:d400:0:0:0:0:0/40
  • 240c:c410:d500:0:0:0:0:0/40
  • 240c:c410:d600:0:0:0:0:0/40
  • 240c:c410:d700:0:0:0:0:0/40
  • 240c:c410:d800:0:0:0:0:0/40
  • 240c:c410:d900:0:0:0:0:0/40
  • 240c:c410:da00:0:0:0:0:0/40
  • 240c:c410:db00:0:0:0:0:0/40
  • 240c:c410:dc00:0:0:0:0:0/40
  • 240c:c410:dd00:0:0:0:0:0/40
  • 240c:c410:de00:0:0:0:0:0/40
  • 240c:c410:df00:0:0:0:0:0/40
  • 240c:c410:e000:0:0:0:0:0/40
  • 240c:c410:e100:0:0:0:0:0/40
  • 240c:c410:e200:0:0:0:0:0/40
  • 240c:c410:e300:0:0:0:0:0/40
  • 240c:c410:e400:0:0:0:0:0/40
  • 240c:c410:e500:0:0:0:0:0/40
  • 240c:c410:e600:0:0:0:0:0/40
  • 240c:c410:e700:0:0:0:0:0/40
  • 240c:c410:e800:0:0:0:0:0/40
  • 240c:c410:e900:0:0:0:0:0/40
  • 240c:c410:ea00:0:0:0:0:0/40
  • 240c:c410:eb00:0:0:0:0:0/40
  • 240c:c410:ec00:0:0:0:0:0/40
  • 240c:c410:ed00:0:0:0:0:0/40
  • 240c:c410:ee00:0:0:0:0:0/40
  • 240c:c410:ef00:0:0:0:0:0/40
  • 240c:c410:f000:0:0:0:0:0/40
  • 240c:c410:f100:0:0:0:0:0/40
  • 240c:c410:f200:0:0:0:0:0/40
  • 240c:c410:f300:0:0:0:0:0/40
  • 240c:c410:f400:0:0:0:0:0/40
  • 240c:c410:f500:0:0:0:0:0/40
  • 240c:c410:f600:0:0:0:0:0/40
  • 240c:c410:f700:0:0:0:0:0/40
  • 240c:c410:f800:0:0:0:0:0/40
  • 240c:c410:f900:0:0:0:0:0/40
  • 240c:c410:fa00:0:0:0:0:0/40
  • 240c:c410:fb00:0:0:0:0:0/40
  • 240c:c410:fc00:0:0:0:0:0/40
  • 240c:c410:fd00:0:0:0:0:0/40
  • 240c:c410:fe00:0:0:0:0:0/40
  • 240c:c410:ff00:0:0:0:0:0/40

Get started with 100,000 free lookups: sign up