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 2001:250:3437::/48 subnet

  • 2001:250:3437:0:0:0:0:0/56
  • 2001:250:3437:100:0:0:0:0/56
  • 2001:250:3437:200:0:0:0:0/56
  • 2001:250:3437:300:0:0:0:0/56
  • 2001:250:3437:400:0:0:0:0/56
  • 2001:250:3437:500:0:0:0:0/56
  • 2001:250:3437:600:0:0:0:0/56
  • 2001:250:3437:700:0:0:0:0/56
  • 2001:250:3437:800:0:0:0:0/56
  • 2001:250:3437:900:0:0:0:0/56
  • 2001:250:3437:a00:0:0:0:0/56
  • 2001:250:3437:b00:0:0:0:0/56
  • 2001:250:3437:c00:0:0:0:0/56
  • 2001:250:3437:d00:0:0:0:0/56
  • 2001:250:3437:e00:0:0:0:0/56
  • 2001:250:3437:f00:0:0:0:0/56
  • 2001:250:3437:1000:0:0:0:0/56
  • 2001:250:3437:1100:0:0:0:0/56
  • 2001:250:3437:1200:0:0:0:0/56
  • 2001:250:3437:1300:0:0:0:0/56
  • 2001:250:3437:1400:0:0:0:0/56
  • 2001:250:3437:1500:0:0:0:0/56
  • 2001:250:3437:1600:0:0:0:0/56
  • 2001:250:3437:1700:0:0:0:0/56
  • 2001:250:3437:1800:0:0:0:0/56
  • 2001:250:3437:1900:0:0:0:0/56
  • 2001:250:3437:1a00:0:0:0:0/56
  • 2001:250:3437:1b00:0:0:0:0/56
  • 2001:250:3437:1c00:0:0:0:0/56
  • 2001:250:3437:1d00:0:0:0:0/56
  • 2001:250:3437:1e00:0:0:0:0/56
  • 2001:250:3437:1f00:0:0:0:0/56
  • 2001:250:3437:2000:0:0:0:0/56
  • 2001:250:3437:2100:0:0:0:0/56
  • 2001:250:3437:2200:0:0:0:0/56
  • 2001:250:3437:2300:0:0:0:0/56
  • 2001:250:3437:2400:0:0:0:0/56
  • 2001:250:3437:2500:0:0:0:0/56
  • 2001:250:3437:2600:0:0:0:0/56
  • 2001:250:3437:2700:0:0:0:0/56
  • 2001:250:3437:2800:0:0:0:0/56
  • 2001:250:3437:2900:0:0:0:0/56
  • 2001:250:3437:2a00:0:0:0:0/56
  • 2001:250:3437:2b00:0:0:0:0/56
  • 2001:250:3437:2c00:0:0:0:0/56
  • 2001:250:3437:2d00:0:0:0:0/56
  • 2001:250:3437:2e00:0:0:0:0/56
  • 2001:250:3437:2f00:0:0:0:0/56
  • 2001:250:3437:3000:0:0:0:0/56
  • 2001:250:3437:3100:0:0:0:0/56
  • 2001:250:3437:3200:0:0:0:0/56
  • 2001:250:3437:3300:0:0:0:0/56
  • 2001:250:3437:3400:0:0:0:0/56
  • 2001:250:3437:3500:0:0:0:0/56
  • 2001:250:3437:3600:0:0:0:0/56
  • 2001:250:3437:3700:0:0:0:0/56
  • 2001:250:3437:3800:0:0:0:0/56
  • 2001:250:3437:3900:0:0:0:0/56
  • 2001:250:3437:3a00:0:0:0:0/56
  • 2001:250:3437:3b00:0:0:0:0/56
  • 2001:250:3437:3c00:0:0:0:0/56
  • 2001:250:3437:3d00:0:0:0:0/56
  • 2001:250:3437:3e00:0:0:0:0/56
  • 2001:250:3437:3f00:0:0:0:0/56
  • 2001:250:3437:4000:0:0:0:0/56
  • 2001:250:3437:4100:0:0:0:0/56
  • 2001:250:3437:4200:0:0:0:0/56
  • 2001:250:3437:4300:0:0:0:0/56
  • 2001:250:3437:4400:0:0:0:0/56
  • 2001:250:3437:4500:0:0:0:0/56
  • 2001:250:3437:4600:0:0:0:0/56
  • 2001:250:3437:4700:0:0:0:0/56
  • 2001:250:3437:4800:0:0:0:0/56
  • 2001:250:3437:4900:0:0:0:0/56
  • 2001:250:3437:4a00:0:0:0:0/56
  • 2001:250:3437:4b00:0:0:0:0/56
  • 2001:250:3437:4c00:0:0:0:0/56
  • 2001:250:3437:4d00:0:0:0:0/56
  • 2001:250:3437:4e00:0:0:0:0/56
  • 2001:250:3437:4f00:0:0:0:0/56
  • 2001:250:3437:5000:0:0:0:0/56
  • 2001:250:3437:5100:0:0:0:0/56
  • 2001:250:3437:5200:0:0:0:0/56
  • 2001:250:3437:5300:0:0:0:0/56
  • 2001:250:3437:5400:0:0:0:0/56
  • 2001:250:3437:5500:0:0:0:0/56
  • 2001:250:3437:5600:0:0:0:0/56
  • 2001:250:3437:5700:0:0:0:0/56
  • 2001:250:3437:5800:0:0:0:0/56
  • 2001:250:3437:5900:0:0:0:0/56
  • 2001:250:3437:5a00:0:0:0:0/56
  • 2001:250:3437:5b00:0:0:0:0/56
  • 2001:250:3437:5c00:0:0:0:0/56
  • 2001:250:3437:5d00:0:0:0:0/56
  • 2001:250:3437:5e00:0:0:0:0/56
  • 2001:250:3437:5f00:0:0:0:0/56
  • 2001:250:3437:6000:0:0:0:0/56
  • 2001:250:3437:6100:0:0:0:0/56
  • 2001:250:3437:6200:0:0:0:0/56
  • 2001:250:3437:6300:0:0:0:0/56
  • 2001:250:3437:6400:0:0:0:0/56
  • 2001:250:3437:6500:0:0:0:0/56
  • 2001:250:3437:6600:0:0:0:0/56
  • 2001:250:3437:6700:0:0:0:0/56
  • 2001:250:3437:6800:0:0:0:0/56
  • 2001:250:3437:6900:0:0:0:0/56
  • 2001:250:3437:6a00:0:0:0:0/56
  • 2001:250:3437:6b00:0:0:0:0/56
  • 2001:250:3437:6c00:0:0:0:0/56
  • 2001:250:3437:6d00:0:0:0:0/56
  • 2001:250:3437:6e00:0:0:0:0/56
  • 2001:250:3437:6f00:0:0:0:0/56
  • 2001:250:3437:7000:0:0:0:0/56
  • 2001:250:3437:7100:0:0:0:0/56
  • 2001:250:3437:7200:0:0:0:0/56
  • 2001:250:3437:7300:0:0:0:0/56
  • 2001:250:3437:7400:0:0:0:0/56
  • 2001:250:3437:7500:0:0:0:0/56
  • 2001:250:3437:7600:0:0:0:0/56
  • 2001:250:3437:7700:0:0:0:0/56
  • 2001:250:3437:7800:0:0:0:0/56
  • 2001:250:3437:7900:0:0:0:0/56
  • 2001:250:3437:7a00:0:0:0:0/56
  • 2001:250:3437:7b00:0:0:0:0/56
  • 2001:250:3437:7c00:0:0:0:0/56
  • 2001:250:3437:7d00:0:0:0:0/56
  • 2001:250:3437:7e00:0:0:0:0/56
  • 2001:250:3437:7f00:0:0:0:0/56
  • 2001:250:3437:8000:0:0:0:0/56
  • 2001:250:3437:8100:0:0:0:0/56
  • 2001:250:3437:8200:0:0:0:0/56
  • 2001:250:3437:8300:0:0:0:0/56
  • 2001:250:3437:8400:0:0:0:0/56
  • 2001:250:3437:8500:0:0:0:0/56
  • 2001:250:3437:8600:0:0:0:0/56
  • 2001:250:3437:8700:0:0:0:0/56
  • 2001:250:3437:8800:0:0:0:0/56
  • 2001:250:3437:8900:0:0:0:0/56
  • 2001:250:3437:8a00:0:0:0:0/56
  • 2001:250:3437:8b00:0:0:0:0/56
  • 2001:250:3437:8c00:0:0:0:0/56
  • 2001:250:3437:8d00:0:0:0:0/56
  • 2001:250:3437:8e00:0:0:0:0/56
  • 2001:250:3437:8f00:0:0:0:0/56
  • 2001:250:3437:9000:0:0:0:0/56
  • 2001:250:3437:9100:0:0:0:0/56
  • 2001:250:3437:9200:0:0:0:0/56
  • 2001:250:3437:9300:0:0:0:0/56
  • 2001:250:3437:9400:0:0:0:0/56
  • 2001:250:3437:9500:0:0:0:0/56
  • 2001:250:3437:9600:0:0:0:0/56
  • 2001:250:3437:9700:0:0:0:0/56
  • 2001:250:3437:9800:0:0:0:0/56
  • 2001:250:3437:9900:0:0:0:0/56
  • 2001:250:3437:9a00:0:0:0:0/56
  • 2001:250:3437:9b00:0:0:0:0/56
  • 2001:250:3437:9c00:0:0:0:0/56
  • 2001:250:3437:9d00:0:0:0:0/56
  • 2001:250:3437:9e00:0:0:0:0/56
  • 2001:250:3437:9f00:0:0:0:0/56
  • 2001:250:3437:a000:0:0:0:0/56
  • 2001:250:3437:a100:0:0:0:0/56
  • 2001:250:3437:a200:0:0:0:0/56
  • 2001:250:3437:a300:0:0:0:0/56
  • 2001:250:3437:a400:0:0:0:0/56
  • 2001:250:3437:a500:0:0:0:0/56
  • 2001:250:3437:a600:0:0:0:0/56
  • 2001:250:3437:a700:0:0:0:0/56
  • 2001:250:3437:a800:0:0:0:0/56
  • 2001:250:3437:a900:0:0:0:0/56
  • 2001:250:3437:aa00:0:0:0:0/56
  • 2001:250:3437:ab00:0:0:0:0/56
  • 2001:250:3437:ac00:0:0:0:0/56
  • 2001:250:3437:ad00:0:0:0:0/56
  • 2001:250:3437:ae00:0:0:0:0/56
  • 2001:250:3437:af00:0:0:0:0/56
  • 2001:250:3437:b000:0:0:0:0/56
  • 2001:250:3437:b100:0:0:0:0/56
  • 2001:250:3437:b200:0:0:0:0/56
  • 2001:250:3437:b300:0:0:0:0/56
  • 2001:250:3437:b400:0:0:0:0/56
  • 2001:250:3437:b500:0:0:0:0/56
  • 2001:250:3437:b600:0:0:0:0/56
  • 2001:250:3437:b700:0:0:0:0/56
  • 2001:250:3437:b800:0:0:0:0/56
  • 2001:250:3437:b900:0:0:0:0/56
  • 2001:250:3437:ba00:0:0:0:0/56
  • 2001:250:3437:bb00:0:0:0:0/56
  • 2001:250:3437:bc00:0:0:0:0/56
  • 2001:250:3437:bd00:0:0:0:0/56
  • 2001:250:3437:be00:0:0:0:0/56
  • 2001:250:3437:bf00:0:0:0:0/56
  • 2001:250:3437:c000:0:0:0:0/56
  • 2001:250:3437:c100:0:0:0:0/56
  • 2001:250:3437:c200:0:0:0:0/56
  • 2001:250:3437:c300:0:0:0:0/56
  • 2001:250:3437:c400:0:0:0:0/56
  • 2001:250:3437:c500:0:0:0:0/56
  • 2001:250:3437:c600:0:0:0:0/56
  • 2001:250:3437:c700:0:0:0:0/56
  • 2001:250:3437:c800:0:0:0:0/56
  • 2001:250:3437:c900:0:0:0:0/56
  • 2001:250:3437:ca00:0:0:0:0/56
  • 2001:250:3437:cb00:0:0:0:0/56
  • 2001:250:3437:cc00:0:0:0:0/56
  • 2001:250:3437:cd00:0:0:0:0/56
  • 2001:250:3437:ce00:0:0:0:0/56
  • 2001:250:3437:cf00:0:0:0:0/56
  • 2001:250:3437:d000:0:0:0:0/56
  • 2001:250:3437:d100:0:0:0:0/56
  • 2001:250:3437:d200:0:0:0:0/56
  • 2001:250:3437:d300:0:0:0:0/56
  • 2001:250:3437:d400:0:0:0:0/56
  • 2001:250:3437:d500:0:0:0:0/56
  • 2001:250:3437:d600:0:0:0:0/56
  • 2001:250:3437:d700:0:0:0:0/56
  • 2001:250:3437:d800:0:0:0:0/56
  • 2001:250:3437:d900:0:0:0:0/56
  • 2001:250:3437:da00:0:0:0:0/56
  • 2001:250:3437:db00:0:0:0:0/56
  • 2001:250:3437:dc00:0:0:0:0/56
  • 2001:250:3437:dd00:0:0:0:0/56
  • 2001:250:3437:de00:0:0:0:0/56
  • 2001:250:3437:df00:0:0:0:0/56
  • 2001:250:3437:e000:0:0:0:0/56
  • 2001:250:3437:e100:0:0:0:0/56
  • 2001:250:3437:e200:0:0:0:0/56
  • 2001:250:3437:e300:0:0:0:0/56
  • 2001:250:3437:e400:0:0:0:0/56
  • 2001:250:3437:e500:0:0:0:0/56
  • 2001:250:3437:e600:0:0:0:0/56
  • 2001:250:3437:e700:0:0:0:0/56
  • 2001:250:3437:e800:0:0:0:0/56
  • 2001:250:3437:e900:0:0:0:0/56
  • 2001:250:3437:ea00:0:0:0:0/56
  • 2001:250:3437:eb00:0:0:0:0/56
  • 2001:250:3437:ec00:0:0:0:0/56
  • 2001:250:3437:ed00:0:0:0:0/56
  • 2001:250:3437:ee00:0:0:0:0/56
  • 2001:250:3437:ef00:0:0:0:0/56
  • 2001:250:3437:f000:0:0:0:0/56
  • 2001:250:3437:f100:0:0:0:0/56
  • 2001:250:3437:f200:0:0:0:0/56
  • 2001:250:3437:f300:0:0:0:0/56
  • 2001:250:3437:f400:0:0:0:0/56
  • 2001:250:3437:f500:0:0:0:0/56
  • 2001:250:3437:f600:0:0:0:0/56
  • 2001:250:3437:f700:0:0:0:0/56
  • 2001:250:3437:f800:0:0:0:0/56
  • 2001:250:3437:f900:0:0:0:0/56
  • 2001:250:3437:fa00:0:0:0:0/56
  • 2001:250:3437:fb00:0:0:0:0/56
  • 2001:250:3437:fc00:0:0:0:0/56
  • 2001:250:3437:fd00:0:0:0:0/56
  • 2001:250:3437:fe00:0:0:0:0/56
  • 2001:250:3437:ff00:0:0:0:0/56

Get started with 100,000 free lookups: sign up