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

[whois.apnic.net]



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 2023-12-14
mnt-by: MAINT-CERNET-AP
last-modified: 2023-12-14T03:44:39Z
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

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 2001:250:2420::/48 subnet

  • 2001:250:2420:0:0:0:0:0/56
  • 2001:250:2420:100:0:0:0:0/56
  • 2001:250:2420:200:0:0:0:0/56
  • 2001:250:2420:300:0:0:0:0/56
  • 2001:250:2420:400:0:0:0:0/56
  • 2001:250:2420:500:0:0:0:0/56
  • 2001:250:2420:600:0:0:0:0/56
  • 2001:250:2420:700:0:0:0:0/56
  • 2001:250:2420:800:0:0:0:0/56
  • 2001:250:2420:900:0:0:0:0/56
  • 2001:250:2420:a00:0:0:0:0/56
  • 2001:250:2420:b00:0:0:0:0/56
  • 2001:250:2420:c00:0:0:0:0/56
  • 2001:250:2420:d00:0:0:0:0/56
  • 2001:250:2420:e00:0:0:0:0/56
  • 2001:250:2420:f00:0:0:0:0/56
  • 2001:250:2420:1000:0:0:0:0/56
  • 2001:250:2420:1100:0:0:0:0/56
  • 2001:250:2420:1200:0:0:0:0/56
  • 2001:250:2420:1300:0:0:0:0/56
  • 2001:250:2420:1400:0:0:0:0/56
  • 2001:250:2420:1500:0:0:0:0/56
  • 2001:250:2420:1600:0:0:0:0/56
  • 2001:250:2420:1700:0:0:0:0/56
  • 2001:250:2420:1800:0:0:0:0/56
  • 2001:250:2420:1900:0:0:0:0/56
  • 2001:250:2420:1a00:0:0:0:0/56
  • 2001:250:2420:1b00:0:0:0:0/56
  • 2001:250:2420:1c00:0:0:0:0/56
  • 2001:250:2420:1d00:0:0:0:0/56
  • 2001:250:2420:1e00:0:0:0:0/56
  • 2001:250:2420:1f00:0:0:0:0/56
  • 2001:250:2420:2000:0:0:0:0/56
  • 2001:250:2420:2100:0:0:0:0/56
  • 2001:250:2420:2200:0:0:0:0/56
  • 2001:250:2420:2300:0:0:0:0/56
  • 2001:250:2420:2400:0:0:0:0/56
  • 2001:250:2420:2500:0:0:0:0/56
  • 2001:250:2420:2600:0:0:0:0/56
  • 2001:250:2420:2700:0:0:0:0/56
  • 2001:250:2420:2800:0:0:0:0/56
  • 2001:250:2420:2900:0:0:0:0/56
  • 2001:250:2420:2a00:0:0:0:0/56
  • 2001:250:2420:2b00:0:0:0:0/56
  • 2001:250:2420:2c00:0:0:0:0/56
  • 2001:250:2420:2d00:0:0:0:0/56
  • 2001:250:2420:2e00:0:0:0:0/56
  • 2001:250:2420:2f00:0:0:0:0/56
  • 2001:250:2420:3000:0:0:0:0/56
  • 2001:250:2420:3100:0:0:0:0/56
  • 2001:250:2420:3200:0:0:0:0/56
  • 2001:250:2420:3300:0:0:0:0/56
  • 2001:250:2420:3400:0:0:0:0/56
  • 2001:250:2420:3500:0:0:0:0/56
  • 2001:250:2420:3600:0:0:0:0/56
  • 2001:250:2420:3700:0:0:0:0/56
  • 2001:250:2420:3800:0:0:0:0/56
  • 2001:250:2420:3900:0:0:0:0/56
  • 2001:250:2420:3a00:0:0:0:0/56
  • 2001:250:2420:3b00:0:0:0:0/56
  • 2001:250:2420:3c00:0:0:0:0/56
  • 2001:250:2420:3d00:0:0:0:0/56
  • 2001:250:2420:3e00:0:0:0:0/56
  • 2001:250:2420:3f00:0:0:0:0/56
  • 2001:250:2420:4000:0:0:0:0/56
  • 2001:250:2420:4100:0:0:0:0/56
  • 2001:250:2420:4200:0:0:0:0/56
  • 2001:250:2420:4300:0:0:0:0/56
  • 2001:250:2420:4400:0:0:0:0/56
  • 2001:250:2420:4500:0:0:0:0/56
  • 2001:250:2420:4600:0:0:0:0/56
  • 2001:250:2420:4700:0:0:0:0/56
  • 2001:250:2420:4800:0:0:0:0/56
  • 2001:250:2420:4900:0:0:0:0/56
  • 2001:250:2420:4a00:0:0:0:0/56
  • 2001:250:2420:4b00:0:0:0:0/56
  • 2001:250:2420:4c00:0:0:0:0/56
  • 2001:250:2420:4d00:0:0:0:0/56
  • 2001:250:2420:4e00:0:0:0:0/56
  • 2001:250:2420:4f00:0:0:0:0/56
  • 2001:250:2420:5000:0:0:0:0/56
  • 2001:250:2420:5100:0:0:0:0/56
  • 2001:250:2420:5200:0:0:0:0/56
  • 2001:250:2420:5300:0:0:0:0/56
  • 2001:250:2420:5400:0:0:0:0/56
  • 2001:250:2420:5500:0:0:0:0/56
  • 2001:250:2420:5600:0:0:0:0/56
  • 2001:250:2420:5700:0:0:0:0/56
  • 2001:250:2420:5800:0:0:0:0/56
  • 2001:250:2420:5900:0:0:0:0/56
  • 2001:250:2420:5a00:0:0:0:0/56
  • 2001:250:2420:5b00:0:0:0:0/56
  • 2001:250:2420:5c00:0:0:0:0/56
  • 2001:250:2420:5d00:0:0:0:0/56
  • 2001:250:2420:5e00:0:0:0:0/56
  • 2001:250:2420:5f00:0:0:0:0/56
  • 2001:250:2420:6000:0:0:0:0/56
  • 2001:250:2420:6100:0:0:0:0/56
  • 2001:250:2420:6200:0:0:0:0/56
  • 2001:250:2420:6300:0:0:0:0/56
  • 2001:250:2420:6400:0:0:0:0/56
  • 2001:250:2420:6500:0:0:0:0/56
  • 2001:250:2420:6600:0:0:0:0/56
  • 2001:250:2420:6700:0:0:0:0/56
  • 2001:250:2420:6800:0:0:0:0/56
  • 2001:250:2420:6900:0:0:0:0/56
  • 2001:250:2420:6a00:0:0:0:0/56
  • 2001:250:2420:6b00:0:0:0:0/56
  • 2001:250:2420:6c00:0:0:0:0/56
  • 2001:250:2420:6d00:0:0:0:0/56
  • 2001:250:2420:6e00:0:0:0:0/56
  • 2001:250:2420:6f00:0:0:0:0/56
  • 2001:250:2420:7000:0:0:0:0/56
  • 2001:250:2420:7100:0:0:0:0/56
  • 2001:250:2420:7200:0:0:0:0/56
  • 2001:250:2420:7300:0:0:0:0/56
  • 2001:250:2420:7400:0:0:0:0/56
  • 2001:250:2420:7500:0:0:0:0/56
  • 2001:250:2420:7600:0:0:0:0/56
  • 2001:250:2420:7700:0:0:0:0/56
  • 2001:250:2420:7800:0:0:0:0/56
  • 2001:250:2420:7900:0:0:0:0/56
  • 2001:250:2420:7a00:0:0:0:0/56
  • 2001:250:2420:7b00:0:0:0:0/56
  • 2001:250:2420:7c00:0:0:0:0/56
  • 2001:250:2420:7d00:0:0:0:0/56
  • 2001:250:2420:7e00:0:0:0:0/56
  • 2001:250:2420:7f00:0:0:0:0/56
  • 2001:250:2420:8000:0:0:0:0/56
  • 2001:250:2420:8100:0:0:0:0/56
  • 2001:250:2420:8200:0:0:0:0/56
  • 2001:250:2420:8300:0:0:0:0/56
  • 2001:250:2420:8400:0:0:0:0/56
  • 2001:250:2420:8500:0:0:0:0/56
  • 2001:250:2420:8600:0:0:0:0/56
  • 2001:250:2420:8700:0:0:0:0/56
  • 2001:250:2420:8800:0:0:0:0/56
  • 2001:250:2420:8900:0:0:0:0/56
  • 2001:250:2420:8a00:0:0:0:0/56
  • 2001:250:2420:8b00:0:0:0:0/56
  • 2001:250:2420:8c00:0:0:0:0/56
  • 2001:250:2420:8d00:0:0:0:0/56
  • 2001:250:2420:8e00:0:0:0:0/56
  • 2001:250:2420:8f00:0:0:0:0/56
  • 2001:250:2420:9000:0:0:0:0/56
  • 2001:250:2420:9100:0:0:0:0/56
  • 2001:250:2420:9200:0:0:0:0/56
  • 2001:250:2420:9300:0:0:0:0/56
  • 2001:250:2420:9400:0:0:0:0/56
  • 2001:250:2420:9500:0:0:0:0/56
  • 2001:250:2420:9600:0:0:0:0/56
  • 2001:250:2420:9700:0:0:0:0/56
  • 2001:250:2420:9800:0:0:0:0/56
  • 2001:250:2420:9900:0:0:0:0/56
  • 2001:250:2420:9a00:0:0:0:0/56
  • 2001:250:2420:9b00:0:0:0:0/56
  • 2001:250:2420:9c00:0:0:0:0/56
  • 2001:250:2420:9d00:0:0:0:0/56
  • 2001:250:2420:9e00:0:0:0:0/56
  • 2001:250:2420:9f00:0:0:0:0/56
  • 2001:250:2420:a000:0:0:0:0/56
  • 2001:250:2420:a100:0:0:0:0/56
  • 2001:250:2420:a200:0:0:0:0/56
  • 2001:250:2420:a300:0:0:0:0/56
  • 2001:250:2420:a400:0:0:0:0/56
  • 2001:250:2420:a500:0:0:0:0/56
  • 2001:250:2420:a600:0:0:0:0/56
  • 2001:250:2420:a700:0:0:0:0/56
  • 2001:250:2420:a800:0:0:0:0/56
  • 2001:250:2420:a900:0:0:0:0/56
  • 2001:250:2420:aa00:0:0:0:0/56
  • 2001:250:2420:ab00:0:0:0:0/56
  • 2001:250:2420:ac00:0:0:0:0/56
  • 2001:250:2420:ad00:0:0:0:0/56
  • 2001:250:2420:ae00:0:0:0:0/56
  • 2001:250:2420:af00:0:0:0:0/56
  • 2001:250:2420:b000:0:0:0:0/56
  • 2001:250:2420:b100:0:0:0:0/56
  • 2001:250:2420:b200:0:0:0:0/56
  • 2001:250:2420:b300:0:0:0:0/56
  • 2001:250:2420:b400:0:0:0:0/56
  • 2001:250:2420:b500:0:0:0:0/56
  • 2001:250:2420:b600:0:0:0:0/56
  • 2001:250:2420:b700:0:0:0:0/56
  • 2001:250:2420:b800:0:0:0:0/56
  • 2001:250:2420:b900:0:0:0:0/56
  • 2001:250:2420:ba00:0:0:0:0/56
  • 2001:250:2420:bb00:0:0:0:0/56
  • 2001:250:2420:bc00:0:0:0:0/56
  • 2001:250:2420:bd00:0:0:0:0/56
  • 2001:250:2420:be00:0:0:0:0/56
  • 2001:250:2420:bf00:0:0:0:0/56
  • 2001:250:2420:c000:0:0:0:0/56
  • 2001:250:2420:c100:0:0:0:0/56
  • 2001:250:2420:c200:0:0:0:0/56
  • 2001:250:2420:c300:0:0:0:0/56
  • 2001:250:2420:c400:0:0:0:0/56
  • 2001:250:2420:c500:0:0:0:0/56
  • 2001:250:2420:c600:0:0:0:0/56
  • 2001:250:2420:c700:0:0:0:0/56
  • 2001:250:2420:c800:0:0:0:0/56
  • 2001:250:2420:c900:0:0:0:0/56
  • 2001:250:2420:ca00:0:0:0:0/56
  • 2001:250:2420:cb00:0:0:0:0/56
  • 2001:250:2420:cc00:0:0:0:0/56
  • 2001:250:2420:cd00:0:0:0:0/56
  • 2001:250:2420:ce00:0:0:0:0/56
  • 2001:250:2420:cf00:0:0:0:0/56
  • 2001:250:2420:d000:0:0:0:0/56
  • 2001:250:2420:d100:0:0:0:0/56
  • 2001:250:2420:d200:0:0:0:0/56
  • 2001:250:2420:d300:0:0:0:0/56
  • 2001:250:2420:d400:0:0:0:0/56
  • 2001:250:2420:d500:0:0:0:0/56
  • 2001:250:2420:d600:0:0:0:0/56
  • 2001:250:2420:d700:0:0:0:0/56
  • 2001:250:2420:d800:0:0:0:0/56
  • 2001:250:2420:d900:0:0:0:0/56
  • 2001:250:2420:da00:0:0:0:0/56
  • 2001:250:2420:db00:0:0:0:0/56
  • 2001:250:2420:dc00:0:0:0:0/56
  • 2001:250:2420:dd00:0:0:0:0/56
  • 2001:250:2420:de00:0:0:0:0/56
  • 2001:250:2420:df00:0:0:0:0/56
  • 2001:250:2420:e000:0:0:0:0/56
  • 2001:250:2420:e100:0:0:0:0/56
  • 2001:250:2420:e200:0:0:0:0/56
  • 2001:250:2420:e300:0:0:0:0/56
  • 2001:250:2420:e400:0:0:0:0/56
  • 2001:250:2420:e500:0:0:0:0/56
  • 2001:250:2420:e600:0:0:0:0/56
  • 2001:250:2420:e700:0:0:0:0/56
  • 2001:250:2420:e800:0:0:0:0/56
  • 2001:250:2420:e900:0:0:0:0/56
  • 2001:250:2420:ea00:0:0:0:0/56
  • 2001:250:2420:eb00:0:0:0:0/56
  • 2001:250:2420:ec00:0:0:0:0/56
  • 2001:250:2420:ed00:0:0:0:0/56
  • 2001:250:2420:ee00:0:0:0:0/56
  • 2001:250:2420:ef00:0:0:0:0/56
  • 2001:250:2420:f000:0:0:0:0/56
  • 2001:250:2420:f100:0:0:0:0/56
  • 2001:250:2420:f200:0:0:0:0/56
  • 2001:250:2420:f300:0:0:0:0/56
  • 2001:250:2420:f400:0:0:0:0/56
  • 2001:250:2420:f500:0:0:0:0/56
  • 2001:250:2420:f600:0:0:0:0/56
  • 2001:250:2420:f700:0:0:0:0/56
  • 2001:250:2420:f800:0:0:0:0/56
  • 2001:250:2420:f900:0:0:0:0/56
  • 2001:250:2420:fa00:0:0:0:0/56
  • 2001:250:2420:fb00:0:0:0:0/56
  • 2001:250:2420:fc00:0:0:0:0/56
  • 2001:250:2420:fd00:0:0:0:0/56
  • 2001:250:2420:fe00:0:0:0:0/56
  • 2001:250:2420:ff00:0:0:0:0/56

Get started with 100,000 free lookups: sign up