Summary

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

Whois

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 2024-07-04
mnt-by: MAINT-CERNET-AP
last-modified: 2024-07-04T04:10:10Z
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 2024-07-04
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2024-07-04T04:10:19Z
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:c018::/32 subnet

  • 240c:c018:0:0:0:0:0:0/40
  • 240c:c018:100:0:0:0:0:0/40
  • 240c:c018:200:0:0:0:0:0/40
  • 240c:c018:300:0:0:0:0:0/40
  • 240c:c018:400:0:0:0:0:0/40
  • 240c:c018:500:0:0:0:0:0/40
  • 240c:c018:600:0:0:0:0:0/40
  • 240c:c018:700:0:0:0:0:0/40
  • 240c:c018:800:0:0:0:0:0/40
  • 240c:c018:900:0:0:0:0:0/40
  • 240c:c018:a00:0:0:0:0:0/40
  • 240c:c018:b00:0:0:0:0:0/40
  • 240c:c018:c00:0:0:0:0:0/40
  • 240c:c018:d00:0:0:0:0:0/40
  • 240c:c018:e00:0:0:0:0:0/40
  • 240c:c018:f00:0:0:0:0:0/40
  • 240c:c018:1000:0:0:0:0:0/40
  • 240c:c018:1100:0:0:0:0:0/40
  • 240c:c018:1200:0:0:0:0:0/40
  • 240c:c018:1300:0:0:0:0:0/40
  • 240c:c018:1400:0:0:0:0:0/40
  • 240c:c018:1500:0:0:0:0:0/40
  • 240c:c018:1600:0:0:0:0:0/40
  • 240c:c018:1700:0:0:0:0:0/40
  • 240c:c018:1800:0:0:0:0:0/40
  • 240c:c018:1900:0:0:0:0:0/40
  • 240c:c018:1a00:0:0:0:0:0/40
  • 240c:c018:1b00:0:0:0:0:0/40
  • 240c:c018:1c00:0:0:0:0:0/40
  • 240c:c018:1d00:0:0:0:0:0/40
  • 240c:c018:1e00:0:0:0:0:0/40
  • 240c:c018:1f00:0:0:0:0:0/40
  • 240c:c018:2000:0:0:0:0:0/40
  • 240c:c018:2100:0:0:0:0:0/40
  • 240c:c018:2200:0:0:0:0:0/40
  • 240c:c018:2300:0:0:0:0:0/40
  • 240c:c018:2400:0:0:0:0:0/40
  • 240c:c018:2500:0:0:0:0:0/40
  • 240c:c018:2600:0:0:0:0:0/40
  • 240c:c018:2700:0:0:0:0:0/40
  • 240c:c018:2800:0:0:0:0:0/40
  • 240c:c018:2900:0:0:0:0:0/40
  • 240c:c018:2a00:0:0:0:0:0/40
  • 240c:c018:2b00:0:0:0:0:0/40
  • 240c:c018:2c00:0:0:0:0:0/40
  • 240c:c018:2d00:0:0:0:0:0/40
  • 240c:c018:2e00:0:0:0:0:0/40
  • 240c:c018:2f00:0:0:0:0:0/40
  • 240c:c018:3000:0:0:0:0:0/40
  • 240c:c018:3100:0:0:0:0:0/40
  • 240c:c018:3200:0:0:0:0:0/40
  • 240c:c018:3300:0:0:0:0:0/40
  • 240c:c018:3400:0:0:0:0:0/40
  • 240c:c018:3500:0:0:0:0:0/40
  • 240c:c018:3600:0:0:0:0:0/40
  • 240c:c018:3700:0:0:0:0:0/40
  • 240c:c018:3800:0:0:0:0:0/40
  • 240c:c018:3900:0:0:0:0:0/40
  • 240c:c018:3a00:0:0:0:0:0/40
  • 240c:c018:3b00:0:0:0:0:0/40
  • 240c:c018:3c00:0:0:0:0:0/40
  • 240c:c018:3d00:0:0:0:0:0/40
  • 240c:c018:3e00:0:0:0:0:0/40
  • 240c:c018:3f00:0:0:0:0:0/40
  • 240c:c018:4000:0:0:0:0:0/40
  • 240c:c018:4100:0:0:0:0:0/40
  • 240c:c018:4200:0:0:0:0:0/40
  • 240c:c018:4300:0:0:0:0:0/40
  • 240c:c018:4400:0:0:0:0:0/40
  • 240c:c018:4500:0:0:0:0:0/40
  • 240c:c018:4600:0:0:0:0:0/40
  • 240c:c018:4700:0:0:0:0:0/40
  • 240c:c018:4800:0:0:0:0:0/40
  • 240c:c018:4900:0:0:0:0:0/40
  • 240c:c018:4a00:0:0:0:0:0/40
  • 240c:c018:4b00:0:0:0:0:0/40
  • 240c:c018:4c00:0:0:0:0:0/40
  • 240c:c018:4d00:0:0:0:0:0/40
  • 240c:c018:4e00:0:0:0:0:0/40
  • 240c:c018:4f00:0:0:0:0:0/40
  • 240c:c018:5000:0:0:0:0:0/40
  • 240c:c018:5100:0:0:0:0:0/40
  • 240c:c018:5200:0:0:0:0:0/40
  • 240c:c018:5300:0:0:0:0:0/40
  • 240c:c018:5400:0:0:0:0:0/40
  • 240c:c018:5500:0:0:0:0:0/40
  • 240c:c018:5600:0:0:0:0:0/40
  • 240c:c018:5700:0:0:0:0:0/40
  • 240c:c018:5800:0:0:0:0:0/40
  • 240c:c018:5900:0:0:0:0:0/40
  • 240c:c018:5a00:0:0:0:0:0/40
  • 240c:c018:5b00:0:0:0:0:0/40
  • 240c:c018:5c00:0:0:0:0:0/40
  • 240c:c018:5d00:0:0:0:0:0/40
  • 240c:c018:5e00:0:0:0:0:0/40
  • 240c:c018:5f00:0:0:0:0:0/40
  • 240c:c018:6000:0:0:0:0:0/40
  • 240c:c018:6100:0:0:0:0:0/40
  • 240c:c018:6200:0:0:0:0:0/40
  • 240c:c018:6300:0:0:0:0:0/40
  • 240c:c018:6400:0:0:0:0:0/40
  • 240c:c018:6500:0:0:0:0:0/40
  • 240c:c018:6600:0:0:0:0:0/40
  • 240c:c018:6700:0:0:0:0:0/40
  • 240c:c018:6800:0:0:0:0:0/40
  • 240c:c018:6900:0:0:0:0:0/40
  • 240c:c018:6a00:0:0:0:0:0/40
  • 240c:c018:6b00:0:0:0:0:0/40
  • 240c:c018:6c00:0:0:0:0:0/40
  • 240c:c018:6d00:0:0:0:0:0/40
  • 240c:c018:6e00:0:0:0:0:0/40
  • 240c:c018:6f00:0:0:0:0:0/40
  • 240c:c018:7000:0:0:0:0:0/40
  • 240c:c018:7100:0:0:0:0:0/40
  • 240c:c018:7200:0:0:0:0:0/40
  • 240c:c018:7300:0:0:0:0:0/40
  • 240c:c018:7400:0:0:0:0:0/40
  • 240c:c018:7500:0:0:0:0:0/40
  • 240c:c018:7600:0:0:0:0:0/40
  • 240c:c018:7700:0:0:0:0:0/40
  • 240c:c018:7800:0:0:0:0:0/40
  • 240c:c018:7900:0:0:0:0:0/40
  • 240c:c018:7a00:0:0:0:0:0/40
  • 240c:c018:7b00:0:0:0:0:0/40
  • 240c:c018:7c00:0:0:0:0:0/40
  • 240c:c018:7d00:0:0:0:0:0/40
  • 240c:c018:7e00:0:0:0:0:0/40
  • 240c:c018:7f00:0:0:0:0:0/40
  • 240c:c018:8000:0:0:0:0:0/40
  • 240c:c018:8100:0:0:0:0:0/40
  • 240c:c018:8200:0:0:0:0:0/40
  • 240c:c018:8300:0:0:0:0:0/40
  • 240c:c018:8400:0:0:0:0:0/40
  • 240c:c018:8500:0:0:0:0:0/40
  • 240c:c018:8600:0:0:0:0:0/40
  • 240c:c018:8700:0:0:0:0:0/40
  • 240c:c018:8800:0:0:0:0:0/40
  • 240c:c018:8900:0:0:0:0:0/40
  • 240c:c018:8a00:0:0:0:0:0/40
  • 240c:c018:8b00:0:0:0:0:0/40
  • 240c:c018:8c00:0:0:0:0:0/40
  • 240c:c018:8d00:0:0:0:0:0/40
  • 240c:c018:8e00:0:0:0:0:0/40
  • 240c:c018:8f00:0:0:0:0:0/40
  • 240c:c018:9000:0:0:0:0:0/40
  • 240c:c018:9100:0:0:0:0:0/40
  • 240c:c018:9200:0:0:0:0:0/40
  • 240c:c018:9300:0:0:0:0:0/40
  • 240c:c018:9400:0:0:0:0:0/40
  • 240c:c018:9500:0:0:0:0:0/40
  • 240c:c018:9600:0:0:0:0:0/40
  • 240c:c018:9700:0:0:0:0:0/40
  • 240c:c018:9800:0:0:0:0:0/40
  • 240c:c018:9900:0:0:0:0:0/40
  • 240c:c018:9a00:0:0:0:0:0/40
  • 240c:c018:9b00:0:0:0:0:0/40
  • 240c:c018:9c00:0:0:0:0:0/40
  • 240c:c018:9d00:0:0:0:0:0/40
  • 240c:c018:9e00:0:0:0:0:0/40
  • 240c:c018:9f00:0:0:0:0:0/40
  • 240c:c018:a000:0:0:0:0:0/40
  • 240c:c018:a100:0:0:0:0:0/40
  • 240c:c018:a200:0:0:0:0:0/40
  • 240c:c018:a300:0:0:0:0:0/40
  • 240c:c018:a400:0:0:0:0:0/40
  • 240c:c018:a500:0:0:0:0:0/40
  • 240c:c018:a600:0:0:0:0:0/40
  • 240c:c018:a700:0:0:0:0:0/40
  • 240c:c018:a800:0:0:0:0:0/40
  • 240c:c018:a900:0:0:0:0:0/40
  • 240c:c018:aa00:0:0:0:0:0/40
  • 240c:c018:ab00:0:0:0:0:0/40
  • 240c:c018:ac00:0:0:0:0:0/40
  • 240c:c018:ad00:0:0:0:0:0/40
  • 240c:c018:ae00:0:0:0:0:0/40
  • 240c:c018:af00:0:0:0:0:0/40
  • 240c:c018:b000:0:0:0:0:0/40
  • 240c:c018:b100:0:0:0:0:0/40
  • 240c:c018:b200:0:0:0:0:0/40
  • 240c:c018:b300:0:0:0:0:0/40
  • 240c:c018:b400:0:0:0:0:0/40
  • 240c:c018:b500:0:0:0:0:0/40
  • 240c:c018:b600:0:0:0:0:0/40
  • 240c:c018:b700:0:0:0:0:0/40
  • 240c:c018:b800:0:0:0:0:0/40
  • 240c:c018:b900:0:0:0:0:0/40
  • 240c:c018:ba00:0:0:0:0:0/40
  • 240c:c018:bb00:0:0:0:0:0/40
  • 240c:c018:bc00:0:0:0:0:0/40
  • 240c:c018:bd00:0:0:0:0:0/40
  • 240c:c018:be00:0:0:0:0:0/40
  • 240c:c018:bf00:0:0:0:0:0/40
  • 240c:c018:c000:0:0:0:0:0/40
  • 240c:c018:c100:0:0:0:0:0/40
  • 240c:c018:c200:0:0:0:0:0/40
  • 240c:c018:c300:0:0:0:0:0/40
  • 240c:c018:c400:0:0:0:0:0/40
  • 240c:c018:c500:0:0:0:0:0/40
  • 240c:c018:c600:0:0:0:0:0/40
  • 240c:c018:c700:0:0:0:0:0/40
  • 240c:c018:c800:0:0:0:0:0/40
  • 240c:c018:c900:0:0:0:0:0/40
  • 240c:c018:ca00:0:0:0:0:0/40
  • 240c:c018:cb00:0:0:0:0:0/40
  • 240c:c018:cc00:0:0:0:0:0/40
  • 240c:c018:cd00:0:0:0:0:0/40
  • 240c:c018:ce00:0:0:0:0:0/40
  • 240c:c018:cf00:0:0:0:0:0/40
  • 240c:c018:d000:0:0:0:0:0/40
  • 240c:c018:d100:0:0:0:0:0/40
  • 240c:c018:d200:0:0:0:0:0/40
  • 240c:c018:d300:0:0:0:0:0/40
  • 240c:c018:d400:0:0:0:0:0/40
  • 240c:c018:d500:0:0:0:0:0/40
  • 240c:c018:d600:0:0:0:0:0/40
  • 240c:c018:d700:0:0:0:0:0/40
  • 240c:c018:d800:0:0:0:0:0/40
  • 240c:c018:d900:0:0:0:0:0/40
  • 240c:c018:da00:0:0:0:0:0/40
  • 240c:c018:db00:0:0:0:0:0/40
  • 240c:c018:dc00:0:0:0:0:0/40
  • 240c:c018:dd00:0:0:0:0:0/40
  • 240c:c018:de00:0:0:0:0:0/40
  • 240c:c018:df00:0:0:0:0:0/40
  • 240c:c018:e000:0:0:0:0:0/40
  • 240c:c018:e100:0:0:0:0:0/40
  • 240c:c018:e200:0:0:0:0:0/40
  • 240c:c018:e300:0:0:0:0:0/40
  • 240c:c018:e400:0:0:0:0:0/40
  • 240c:c018:e500:0:0:0:0:0/40
  • 240c:c018:e600:0:0:0:0:0/40
  • 240c:c018:e700:0:0:0:0:0/40
  • 240c:c018:e800:0:0:0:0:0/40
  • 240c:c018:e900:0:0:0:0:0/40
  • 240c:c018:ea00:0:0:0:0:0/40
  • 240c:c018:eb00:0:0:0:0:0/40
  • 240c:c018:ec00:0:0:0:0:0/40
  • 240c:c018:ed00:0:0:0:0:0/40
  • 240c:c018:ee00:0:0:0:0:0/40
  • 240c:c018:ef00:0:0:0:0:0/40
  • 240c:c018:f000:0:0:0:0:0/40
  • 240c:c018:f100:0:0:0:0:0/40
  • 240c:c018:f200:0:0:0:0:0/40
  • 240c:c018:f300:0:0:0:0:0/40
  • 240c:c018:f400:0:0:0:0:0/40
  • 240c:c018:f500:0:0:0:0:0/40
  • 240c:c018:f600:0:0:0:0:0/40
  • 240c:c018:f700:0:0:0:0:0/40
  • 240c:c018:f800:0:0:0:0:0/40
  • 240c:c018:f900:0:0:0:0:0/40
  • 240c:c018:fa00:0:0:0:0:0/40
  • 240c:c018:fb00:0:0:0:0:0/40
  • 240c:c018:fc00:0:0:0:0:0/40
  • 240c:c018:fd00:0:0:0:0:0/40
  • 240c:c018:fe00:0:0:0:0:0/40
  • 240c:c018:ff00:0:0:0:0:0/40

Get started with 100,000 free lookups: sign up