Summary

Country
CN China
Domain cernet.edu.cn
Size 1,208,925,819,614,629,200,000,000
Registry APNIC
Network Name CERNET-CN-20000426

Whois

inet6num: 2001:250::/32
netname: CERNET-CN-20000426
descr: CERNET IPv6 Backbone
country: CN
admin-c: WJ67-AP
tech-c: LX58-AP
abuse-c: AC1685-AP
status: ALLOCATED PORTABLE
notify: [email protected]
mnt-by: APNIC-HM
mnt-lower: MAINT-CERNET-AP
mnt-routes: MAINT-CERNET-AP
mnt-irt: IRT-CERNET-AP
last-modified: 2020-10-20T00:55:16Z
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

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

person: Li Xing
address: China Education and Research Network
address: China Education and Research Network Center
address: Tsinghua University
address: Beijing, 100084
address: CN
country: CN
phone: +86-10-6278-5983
fax-no: +86-10-6278-5933
e-mail: [email protected]
nic-hdl: LX58-AP
notify: [email protected]
mnt-by: MAINT-CERNET-AP
last-modified: 2011-12-22T05:14:50Z
source: APNIC

person: Wu Jianping
address: China Education and Research Network
address: China Education and Research Network Center
address: Tsinghua University
address: Beijing, 100084
address: CN
country: CN
phone: +86-10-6278-5983
fax-no: +86-10-6278-5933
e-mail: [email protected]
nic-hdl: WJ67-AP
notify: [email protected]
mnt-by: MAINT-CERNET-AP
last-modified: 2011-12-22T05:14:50Z
source: APNIC


CIDR IP address subranges within 2001:250:2439::/48 subnet

  • 2001:250:2439:0:0:0:0:0/56
  • 2001:250:2439:100:0:0:0:0/56
  • 2001:250:2439:200:0:0:0:0/56
  • 2001:250:2439:300:0:0:0:0/56
  • 2001:250:2439:400:0:0:0:0/56
  • 2001:250:2439:500:0:0:0:0/56
  • 2001:250:2439:600:0:0:0:0/56
  • 2001:250:2439:700:0:0:0:0/56
  • 2001:250:2439:800:0:0:0:0/56
  • 2001:250:2439:900:0:0:0:0/56
  • 2001:250:2439:a00:0:0:0:0/56
  • 2001:250:2439:b00:0:0:0:0/56
  • 2001:250:2439:c00:0:0:0:0/56
  • 2001:250:2439:d00:0:0:0:0/56
  • 2001:250:2439:e00:0:0:0:0/56
  • 2001:250:2439:f00:0:0:0:0/56
  • 2001:250:2439:1000:0:0:0:0/56
  • 2001:250:2439:1100:0:0:0:0/56
  • 2001:250:2439:1200:0:0:0:0/56
  • 2001:250:2439:1300:0:0:0:0/56
  • 2001:250:2439:1400:0:0:0:0/56
  • 2001:250:2439:1500:0:0:0:0/56
  • 2001:250:2439:1600:0:0:0:0/56
  • 2001:250:2439:1700:0:0:0:0/56
  • 2001:250:2439:1800:0:0:0:0/56
  • 2001:250:2439:1900:0:0:0:0/56
  • 2001:250:2439:1a00:0:0:0:0/56
  • 2001:250:2439:1b00:0:0:0:0/56
  • 2001:250:2439:1c00:0:0:0:0/56
  • 2001:250:2439:1d00:0:0:0:0/56
  • 2001:250:2439:1e00:0:0:0:0/56
  • 2001:250:2439:1f00:0:0:0:0/56
  • 2001:250:2439:2000:0:0:0:0/56
  • 2001:250:2439:2100:0:0:0:0/56
  • 2001:250:2439:2200:0:0:0:0/56
  • 2001:250:2439:2300:0:0:0:0/56
  • 2001:250:2439:2400:0:0:0:0/56
  • 2001:250:2439:2500:0:0:0:0/56
  • 2001:250:2439:2600:0:0:0:0/56
  • 2001:250:2439:2700:0:0:0:0/56
  • 2001:250:2439:2800:0:0:0:0/56
  • 2001:250:2439:2900:0:0:0:0/56
  • 2001:250:2439:2a00:0:0:0:0/56
  • 2001:250:2439:2b00:0:0:0:0/56
  • 2001:250:2439:2c00:0:0:0:0/56
  • 2001:250:2439:2d00:0:0:0:0/56
  • 2001:250:2439:2e00:0:0:0:0/56
  • 2001:250:2439:2f00:0:0:0:0/56
  • 2001:250:2439:3000:0:0:0:0/56
  • 2001:250:2439:3100:0:0:0:0/56
  • 2001:250:2439:3200:0:0:0:0/56
  • 2001:250:2439:3300:0:0:0:0/56
  • 2001:250:2439:3400:0:0:0:0/56
  • 2001:250:2439:3500:0:0:0:0/56
  • 2001:250:2439:3600:0:0:0:0/56
  • 2001:250:2439:3700:0:0:0:0/56
  • 2001:250:2439:3800:0:0:0:0/56
  • 2001:250:2439:3900:0:0:0:0/56
  • 2001:250:2439:3a00:0:0:0:0/56
  • 2001:250:2439:3b00:0:0:0:0/56
  • 2001:250:2439:3c00:0:0:0:0/56
  • 2001:250:2439:3d00:0:0:0:0/56
  • 2001:250:2439:3e00:0:0:0:0/56
  • 2001:250:2439:3f00:0:0:0:0/56
  • 2001:250:2439:4000:0:0:0:0/56
  • 2001:250:2439:4100:0:0:0:0/56
  • 2001:250:2439:4200:0:0:0:0/56
  • 2001:250:2439:4300:0:0:0:0/56
  • 2001:250:2439:4400:0:0:0:0/56
  • 2001:250:2439:4500:0:0:0:0/56
  • 2001:250:2439:4600:0:0:0:0/56
  • 2001:250:2439:4700:0:0:0:0/56
  • 2001:250:2439:4800:0:0:0:0/56
  • 2001:250:2439:4900:0:0:0:0/56
  • 2001:250:2439:4a00:0:0:0:0/56
  • 2001:250:2439:4b00:0:0:0:0/56
  • 2001:250:2439:4c00:0:0:0:0/56
  • 2001:250:2439:4d00:0:0:0:0/56
  • 2001:250:2439:4e00:0:0:0:0/56
  • 2001:250:2439:4f00:0:0:0:0/56
  • 2001:250:2439:5000:0:0:0:0/56
  • 2001:250:2439:5100:0:0:0:0/56
  • 2001:250:2439:5200:0:0:0:0/56
  • 2001:250:2439:5300:0:0:0:0/56
  • 2001:250:2439:5400:0:0:0:0/56
  • 2001:250:2439:5500:0:0:0:0/56
  • 2001:250:2439:5600:0:0:0:0/56
  • 2001:250:2439:5700:0:0:0:0/56
  • 2001:250:2439:5800:0:0:0:0/56
  • 2001:250:2439:5900:0:0:0:0/56
  • 2001:250:2439:5a00:0:0:0:0/56
  • 2001:250:2439:5b00:0:0:0:0/56
  • 2001:250:2439:5c00:0:0:0:0/56
  • 2001:250:2439:5d00:0:0:0:0/56
  • 2001:250:2439:5e00:0:0:0:0/56
  • 2001:250:2439:5f00:0:0:0:0/56
  • 2001:250:2439:6000:0:0:0:0/56
  • 2001:250:2439:6100:0:0:0:0/56
  • 2001:250:2439:6200:0:0:0:0/56
  • 2001:250:2439:6300:0:0:0:0/56
  • 2001:250:2439:6400:0:0:0:0/56
  • 2001:250:2439:6500:0:0:0:0/56
  • 2001:250:2439:6600:0:0:0:0/56
  • 2001:250:2439:6700:0:0:0:0/56
  • 2001:250:2439:6800:0:0:0:0/56
  • 2001:250:2439:6900:0:0:0:0/56
  • 2001:250:2439:6a00:0:0:0:0/56
  • 2001:250:2439:6b00:0:0:0:0/56
  • 2001:250:2439:6c00:0:0:0:0/56
  • 2001:250:2439:6d00:0:0:0:0/56
  • 2001:250:2439:6e00:0:0:0:0/56
  • 2001:250:2439:6f00:0:0:0:0/56
  • 2001:250:2439:7000:0:0:0:0/56
  • 2001:250:2439:7100:0:0:0:0/56
  • 2001:250:2439:7200:0:0:0:0/56
  • 2001:250:2439:7300:0:0:0:0/56
  • 2001:250:2439:7400:0:0:0:0/56
  • 2001:250:2439:7500:0:0:0:0/56
  • 2001:250:2439:7600:0:0:0:0/56
  • 2001:250:2439:7700:0:0:0:0/56
  • 2001:250:2439:7800:0:0:0:0/56
  • 2001:250:2439:7900:0:0:0:0/56
  • 2001:250:2439:7a00:0:0:0:0/56
  • 2001:250:2439:7b00:0:0:0:0/56
  • 2001:250:2439:7c00:0:0:0:0/56
  • 2001:250:2439:7d00:0:0:0:0/56
  • 2001:250:2439:7e00:0:0:0:0/56
  • 2001:250:2439:7f00:0:0:0:0/56
  • 2001:250:2439:8000:0:0:0:0/56
  • 2001:250:2439:8100:0:0:0:0/56
  • 2001:250:2439:8200:0:0:0:0/56
  • 2001:250:2439:8300:0:0:0:0/56
  • 2001:250:2439:8400:0:0:0:0/56
  • 2001:250:2439:8500:0:0:0:0/56
  • 2001:250:2439:8600:0:0:0:0/56
  • 2001:250:2439:8700:0:0:0:0/56
  • 2001:250:2439:8800:0:0:0:0/56
  • 2001:250:2439:8900:0:0:0:0/56
  • 2001:250:2439:8a00:0:0:0:0/56
  • 2001:250:2439:8b00:0:0:0:0/56
  • 2001:250:2439:8c00:0:0:0:0/56
  • 2001:250:2439:8d00:0:0:0:0/56
  • 2001:250:2439:8e00:0:0:0:0/56
  • 2001:250:2439:8f00:0:0:0:0/56
  • 2001:250:2439:9000:0:0:0:0/56
  • 2001:250:2439:9100:0:0:0:0/56
  • 2001:250:2439:9200:0:0:0:0/56
  • 2001:250:2439:9300:0:0:0:0/56
  • 2001:250:2439:9400:0:0:0:0/56
  • 2001:250:2439:9500:0:0:0:0/56
  • 2001:250:2439:9600:0:0:0:0/56
  • 2001:250:2439:9700:0:0:0:0/56
  • 2001:250:2439:9800:0:0:0:0/56
  • 2001:250:2439:9900:0:0:0:0/56
  • 2001:250:2439:9a00:0:0:0:0/56
  • 2001:250:2439:9b00:0:0:0:0/56
  • 2001:250:2439:9c00:0:0:0:0/56
  • 2001:250:2439:9d00:0:0:0:0/56
  • 2001:250:2439:9e00:0:0:0:0/56
  • 2001:250:2439:9f00:0:0:0:0/56
  • 2001:250:2439:a000:0:0:0:0/56
  • 2001:250:2439:a100:0:0:0:0/56
  • 2001:250:2439:a200:0:0:0:0/56
  • 2001:250:2439:a300:0:0:0:0/56
  • 2001:250:2439:a400:0:0:0:0/56
  • 2001:250:2439:a500:0:0:0:0/56
  • 2001:250:2439:a600:0:0:0:0/56
  • 2001:250:2439:a700:0:0:0:0/56
  • 2001:250:2439:a800:0:0:0:0/56
  • 2001:250:2439:a900:0:0:0:0/56
  • 2001:250:2439:aa00:0:0:0:0/56
  • 2001:250:2439:ab00:0:0:0:0/56
  • 2001:250:2439:ac00:0:0:0:0/56
  • 2001:250:2439:ad00:0:0:0:0/56
  • 2001:250:2439:ae00:0:0:0:0/56
  • 2001:250:2439:af00:0:0:0:0/56
  • 2001:250:2439:b000:0:0:0:0/56
  • 2001:250:2439:b100:0:0:0:0/56
  • 2001:250:2439:b200:0:0:0:0/56
  • 2001:250:2439:b300:0:0:0:0/56
  • 2001:250:2439:b400:0:0:0:0/56
  • 2001:250:2439:b500:0:0:0:0/56
  • 2001:250:2439:b600:0:0:0:0/56
  • 2001:250:2439:b700:0:0:0:0/56
  • 2001:250:2439:b800:0:0:0:0/56
  • 2001:250:2439:b900:0:0:0:0/56
  • 2001:250:2439:ba00:0:0:0:0/56
  • 2001:250:2439:bb00:0:0:0:0/56
  • 2001:250:2439:bc00:0:0:0:0/56
  • 2001:250:2439:bd00:0:0:0:0/56
  • 2001:250:2439:be00:0:0:0:0/56
  • 2001:250:2439:bf00:0:0:0:0/56
  • 2001:250:2439:c000:0:0:0:0/56
  • 2001:250:2439:c100:0:0:0:0/56
  • 2001:250:2439:c200:0:0:0:0/56
  • 2001:250:2439:c300:0:0:0:0/56
  • 2001:250:2439:c400:0:0:0:0/56
  • 2001:250:2439:c500:0:0:0:0/56
  • 2001:250:2439:c600:0:0:0:0/56
  • 2001:250:2439:c700:0:0:0:0/56
  • 2001:250:2439:c800:0:0:0:0/56
  • 2001:250:2439:c900:0:0:0:0/56
  • 2001:250:2439:ca00:0:0:0:0/56
  • 2001:250:2439:cb00:0:0:0:0/56
  • 2001:250:2439:cc00:0:0:0:0/56
  • 2001:250:2439:cd00:0:0:0:0/56
  • 2001:250:2439:ce00:0:0:0:0/56
  • 2001:250:2439:cf00:0:0:0:0/56
  • 2001:250:2439:d000:0:0:0:0/56
  • 2001:250:2439:d100:0:0:0:0/56
  • 2001:250:2439:d200:0:0:0:0/56
  • 2001:250:2439:d300:0:0:0:0/56
  • 2001:250:2439:d400:0:0:0:0/56
  • 2001:250:2439:d500:0:0:0:0/56
  • 2001:250:2439:d600:0:0:0:0/56
  • 2001:250:2439:d700:0:0:0:0/56
  • 2001:250:2439:d800:0:0:0:0/56
  • 2001:250:2439:d900:0:0:0:0/56
  • 2001:250:2439:da00:0:0:0:0/56
  • 2001:250:2439:db00:0:0:0:0/56
  • 2001:250:2439:dc00:0:0:0:0/56
  • 2001:250:2439:dd00:0:0:0:0/56
  • 2001:250:2439:de00:0:0:0:0/56
  • 2001:250:2439:df00:0:0:0:0/56
  • 2001:250:2439:e000:0:0:0:0/56
  • 2001:250:2439:e100:0:0:0:0/56
  • 2001:250:2439:e200:0:0:0:0/56
  • 2001:250:2439:e300:0:0:0:0/56
  • 2001:250:2439:e400:0:0:0:0/56
  • 2001:250:2439:e500:0:0:0:0/56
  • 2001:250:2439:e600:0:0:0:0/56
  • 2001:250:2439:e700:0:0:0:0/56
  • 2001:250:2439:e800:0:0:0:0/56
  • 2001:250:2439:e900:0:0:0:0/56
  • 2001:250:2439:ea00:0:0:0:0/56
  • 2001:250:2439:eb00:0:0:0:0/56
  • 2001:250:2439:ec00:0:0:0:0/56
  • 2001:250:2439:ed00:0:0:0:0/56
  • 2001:250:2439:ee00:0:0:0:0/56
  • 2001:250:2439:ef00:0:0:0:0/56
  • 2001:250:2439:f000:0:0:0:0/56
  • 2001:250:2439:f100:0:0:0:0/56
  • 2001:250:2439:f200:0:0:0:0/56
  • 2001:250:2439:f300:0:0:0:0/56
  • 2001:250:2439:f400:0:0:0:0/56
  • 2001:250:2439:f500:0:0:0:0/56
  • 2001:250:2439:f600:0:0:0:0/56
  • 2001:250:2439:f700:0:0:0:0/56
  • 2001:250:2439:f800:0:0:0:0/56
  • 2001:250:2439:f900:0:0:0:0/56
  • 2001:250:2439:fa00:0:0:0:0/56
  • 2001:250:2439:fb00:0:0:0:0/56
  • 2001:250:2439:fc00:0:0:0:0/56
  • 2001:250:2439:fd00:0:0:0:0/56
  • 2001:250:2439:fe00:0:0:0:0/56
  • 2001:250:2439:ff00:0:0:0:0/56

Get started with 100,000 free lookups: sign up