IP subnet details

2408:840d:d040::/43

AS17621  — China Unicom Shanghai Network

Summary

Country
CN China
Domain chinaunicom.com
Size 38,685,626,227,668,134,000,000,000
Registry APNIC
Network Name CU-CN

Whois

inet6num: 2408:8000::/20
netname: CU-CN
descr: China Unicom
descr: No.21, Jin-Rong Street
descr: Beijng 100033
country: CN
admin-c: CH1302-AP
tech-c: CH1302-AP
abuse-c: AC1718-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-CNCGROUP
mnt-routes: MAINT-CNCGROUP-RR
mnt-irt: IRT-CU-CN
last-modified: 2023-10-21T03:39:56Z
source: APNIC

irt: IRT-CU-CN
address: No.21,Financial Street
address: Beijing,100033
address: P.R.China
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: CH1302-AP
tech-c: CH1302-AP
auth: # Filtered
remarks: [email protected] was validated on 2026-05-08
mnt-by: MAINT-CNCGROUP
last-modified: 2026-05-09T04:50:16Z
source: APNIC

role: ABUSE CUCN
country: ZZ
address: No.21,Financial Street
address: Beijing,100033
address: P.R.China
phone: +000000000
e-mail: [email protected]
admin-c: CH1302-AP
tech-c: CH1302-AP
nic-hdl: AC1718-AP
remarks: Generated from irt object IRT-CU-CN
remarks: [email protected] was validated on 2026-05-08
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2026-05-08T01:31:32Z
source: APNIC

person: ChinaUnicom Hostmaster
nic-hdl: CH1302-AP
e-mail: [email protected]
address: No.21,Jin-Rong Street
address: Beijing,100033
address: P.R.China
phone: +86-10-66259764
fax-no: +86-10-66259764
country: CN
mnt-by: MAINT-CNCGROUP
last-modified: 2017-08-17T06:13:16Z
source: APNIC

route6: 2408:8000::/20
descr: China Unicom IPv6 Network
country: CN
origin: AS4837
mnt-by: MAINT-CNCGROUP-RR
last-modified: 2018-01-18T02:14:01Z
source: APNIC

CIDR IP address subranges within 2408:840d:d040::/43 subnet

  • 2408:840d:d040:0:0:0:0:0/51
  • 2408:840d:d040:2000:0:0:0:0/51
  • 2408:840d:d040:4000:0:0:0:0/51
  • 2408:840d:d040:6000:0:0:0:0/51
  • 2408:840d:d040:8000:0:0:0:0/51
  • 2408:840d:d040:a000:0:0:0:0/51
  • 2408:840d:d040:c000:0:0:0:0/51
  • 2408:840d:d040:e000:0:0:0:0/51
  • 2408:840d:d041:0:0:0:0:0/51
  • 2408:840d:d041:2000:0:0:0:0/51
  • 2408:840d:d041:4000:0:0:0:0/51
  • 2408:840d:d041:6000:0:0:0:0/51
  • 2408:840d:d041:8000:0:0:0:0/51
  • 2408:840d:d041:a000:0:0:0:0/51
  • 2408:840d:d041:c000:0:0:0:0/51
  • 2408:840d:d041:e000:0:0:0:0/51
  • 2408:840d:d042:0:0:0:0:0/51
  • 2408:840d:d042:2000:0:0:0:0/51
  • 2408:840d:d042:4000:0:0:0:0/51
  • 2408:840d:d042:6000:0:0:0:0/51
  • 2408:840d:d042:8000:0:0:0:0/51
  • 2408:840d:d042:a000:0:0:0:0/51
  • 2408:840d:d042:c000:0:0:0:0/51
  • 2408:840d:d042:e000:0:0:0:0/51
  • 2408:840d:d043:0:0:0:0:0/51
  • 2408:840d:d043:2000:0:0:0:0/51
  • 2408:840d:d043:4000:0:0:0:0/51
  • 2408:840d:d043:6000:0:0:0:0/51
  • 2408:840d:d043:8000:0:0:0:0/51
  • 2408:840d:d043:a000:0:0:0:0/51
  • 2408:840d:d043:c000:0:0:0:0/51
  • 2408:840d:d043:e000:0:0:0:0/51
  • 2408:840d:d044:0:0:0:0:0/51
  • 2408:840d:d044:2000:0:0:0:0/51
  • 2408:840d:d044:4000:0:0:0:0/51
  • 2408:840d:d044:6000:0:0:0:0/51
  • 2408:840d:d044:8000:0:0:0:0/51
  • 2408:840d:d044:a000:0:0:0:0/51
  • 2408:840d:d044:c000:0:0:0:0/51
  • 2408:840d:d044:e000:0:0:0:0/51
  • 2408:840d:d045:0:0:0:0:0/51
  • 2408:840d:d045:2000:0:0:0:0/51
  • 2408:840d:d045:4000:0:0:0:0/51
  • 2408:840d:d045:6000:0:0:0:0/51
  • 2408:840d:d045:8000:0:0:0:0/51
  • 2408:840d:d045:a000:0:0:0:0/51
  • 2408:840d:d045:c000:0:0:0:0/51
  • 2408:840d:d045:e000:0:0:0:0/51
  • 2408:840d:d046:0:0:0:0:0/51
  • 2408:840d:d046:2000:0:0:0:0/51
  • 2408:840d:d046:4000:0:0:0:0/51
  • 2408:840d:d046:6000:0:0:0:0/51
  • 2408:840d:d046:8000:0:0:0:0/51
  • 2408:840d:d046:a000:0:0:0:0/51
  • 2408:840d:d046:c000:0:0:0:0/51
  • 2408:840d:d046:e000:0:0:0:0/51
  • 2408:840d:d047:0:0:0:0:0/51
  • 2408:840d:d047:2000:0:0:0:0/51
  • 2408:840d:d047:4000:0:0:0:0/51
  • 2408:840d:d047:6000:0:0:0:0/51
  • 2408:840d:d047:8000:0:0:0:0/51
  • 2408:840d:d047:a000:0:0:0:0/51
  • 2408:840d:d047:c000:0:0:0:0/51
  • 2408:840d:d047:e000:0:0:0:0/51
  • 2408:840d:d048:0:0:0:0:0/51
  • 2408:840d:d048:2000:0:0:0:0/51
  • 2408:840d:d048:4000:0:0:0:0/51
  • 2408:840d:d048:6000:0:0:0:0/51
  • 2408:840d:d048:8000:0:0:0:0/51
  • 2408:840d:d048:a000:0:0:0:0/51
  • 2408:840d:d048:c000:0:0:0:0/51
  • 2408:840d:d048:e000:0:0:0:0/51
  • 2408:840d:d049:0:0:0:0:0/51
  • 2408:840d:d049:2000:0:0:0:0/51
  • 2408:840d:d049:4000:0:0:0:0/51
  • 2408:840d:d049:6000:0:0:0:0/51
  • 2408:840d:d049:8000:0:0:0:0/51
  • 2408:840d:d049:a000:0:0:0:0/51
  • 2408:840d:d049:c000:0:0:0:0/51
  • 2408:840d:d049:e000:0:0:0:0/51
  • 2408:840d:d04a:0:0:0:0:0/51
  • 2408:840d:d04a:2000:0:0:0:0/51
  • 2408:840d:d04a:4000:0:0:0:0/51
  • 2408:840d:d04a:6000:0:0:0:0/51
  • 2408:840d:d04a:8000:0:0:0:0/51
  • 2408:840d:d04a:a000:0:0:0:0/51
  • 2408:840d:d04a:c000:0:0:0:0/51
  • 2408:840d:d04a:e000:0:0:0:0/51
  • 2408:840d:d04b:0:0:0:0:0/51
  • 2408:840d:d04b:2000:0:0:0:0/51
  • 2408:840d:d04b:4000:0:0:0:0/51
  • 2408:840d:d04b:6000:0:0:0:0/51
  • 2408:840d:d04b:8000:0:0:0:0/51
  • 2408:840d:d04b:a000:0:0:0:0/51
  • 2408:840d:d04b:c000:0:0:0:0/51
  • 2408:840d:d04b:e000:0:0:0:0/51
  • 2408:840d:d04c:0:0:0:0:0/51
  • 2408:840d:d04c:2000:0:0:0:0/51
  • 2408:840d:d04c:4000:0:0:0:0/51
  • 2408:840d:d04c:6000:0:0:0:0/51
  • 2408:840d:d04c:8000:0:0:0:0/51
  • 2408:840d:d04c:a000:0:0:0:0/51
  • 2408:840d:d04c:c000:0:0:0:0/51
  • 2408:840d:d04c:e000:0:0:0:0/51
  • 2408:840d:d04d:0:0:0:0:0/51
  • 2408:840d:d04d:2000:0:0:0:0/51
  • 2408:840d:d04d:4000:0:0:0:0/51
  • 2408:840d:d04d:6000:0:0:0:0/51
  • 2408:840d:d04d:8000:0:0:0:0/51
  • 2408:840d:d04d:a000:0:0:0:0/51
  • 2408:840d:d04d:c000:0:0:0:0/51
  • 2408:840d:d04d:e000:0:0:0:0/51
  • 2408:840d:d04e:0:0:0:0:0/51
  • 2408:840d:d04e:2000:0:0:0:0/51
  • 2408:840d:d04e:4000:0:0:0:0/51
  • 2408:840d:d04e:6000:0:0:0:0/51
  • 2408:840d:d04e:8000:0:0:0:0/51
  • 2408:840d:d04e:a000:0:0:0:0/51
  • 2408:840d:d04e:c000:0:0:0:0/51
  • 2408:840d:d04e:e000:0:0:0:0/51
  • 2408:840d:d04f:0:0:0:0:0/51
  • 2408:840d:d04f:2000:0:0:0:0/51
  • 2408:840d:d04f:4000:0:0:0:0/51
  • 2408:840d:d04f:6000:0:0:0:0/51
  • 2408:840d:d04f:8000:0:0:0:0/51
  • 2408:840d:d04f:a000:0:0:0:0/51
  • 2408:840d:d04f:c000:0:0:0:0/51
  • 2408:840d:d04f:e000:0:0:0:0/51
  • 2408:840d:d050:0:0:0:0:0/51
  • 2408:840d:d050:2000:0:0:0:0/51
  • 2408:840d:d050:4000:0:0:0:0/51
  • 2408:840d:d050:6000:0:0:0:0/51
  • 2408:840d:d050:8000:0:0:0:0/51
  • 2408:840d:d050:a000:0:0:0:0/51
  • 2408:840d:d050:c000:0:0:0:0/51
  • 2408:840d:d050:e000:0:0:0:0/51
  • 2408:840d:d051:0:0:0:0:0/51
  • 2408:840d:d051:2000:0:0:0:0/51
  • 2408:840d:d051:4000:0:0:0:0/51
  • 2408:840d:d051:6000:0:0:0:0/51
  • 2408:840d:d051:8000:0:0:0:0/51
  • 2408:840d:d051:a000:0:0:0:0/51
  • 2408:840d:d051:c000:0:0:0:0/51
  • 2408:840d:d051:e000:0:0:0:0/51
  • 2408:840d:d052:0:0:0:0:0/51
  • 2408:840d:d052:2000:0:0:0:0/51
  • 2408:840d:d052:4000:0:0:0:0/51
  • 2408:840d:d052:6000:0:0:0:0/51
  • 2408:840d:d052:8000:0:0:0:0/51
  • 2408:840d:d052:a000:0:0:0:0/51
  • 2408:840d:d052:c000:0:0:0:0/51
  • 2408:840d:d052:e000:0:0:0:0/51
  • 2408:840d:d053:0:0:0:0:0/51
  • 2408:840d:d053:2000:0:0:0:0/51
  • 2408:840d:d053:4000:0:0:0:0/51
  • 2408:840d:d053:6000:0:0:0:0/51
  • 2408:840d:d053:8000:0:0:0:0/51
  • 2408:840d:d053:a000:0:0:0:0/51
  • 2408:840d:d053:c000:0:0:0:0/51
  • 2408:840d:d053:e000:0:0:0:0/51
  • 2408:840d:d054:0:0:0:0:0/51
  • 2408:840d:d054:2000:0:0:0:0/51
  • 2408:840d:d054:4000:0:0:0:0/51
  • 2408:840d:d054:6000:0:0:0:0/51
  • 2408:840d:d054:8000:0:0:0:0/51
  • 2408:840d:d054:a000:0:0:0:0/51
  • 2408:840d:d054:c000:0:0:0:0/51
  • 2408:840d:d054:e000:0:0:0:0/51
  • 2408:840d:d055:0:0:0:0:0/51
  • 2408:840d:d055:2000:0:0:0:0/51
  • 2408:840d:d055:4000:0:0:0:0/51
  • 2408:840d:d055:6000:0:0:0:0/51
  • 2408:840d:d055:8000:0:0:0:0/51
  • 2408:840d:d055:a000:0:0:0:0/51
  • 2408:840d:d055:c000:0:0:0:0/51
  • 2408:840d:d055:e000:0:0:0:0/51
  • 2408:840d:d056:0:0:0:0:0/51
  • 2408:840d:d056:2000:0:0:0:0/51
  • 2408:840d:d056:4000:0:0:0:0/51
  • 2408:840d:d056:6000:0:0:0:0/51
  • 2408:840d:d056:8000:0:0:0:0/51
  • 2408:840d:d056:a000:0:0:0:0/51
  • 2408:840d:d056:c000:0:0:0:0/51
  • 2408:840d:d056:e000:0:0:0:0/51
  • 2408:840d:d057:0:0:0:0:0/51
  • 2408:840d:d057:2000:0:0:0:0/51
  • 2408:840d:d057:4000:0:0:0:0/51
  • 2408:840d:d057:6000:0:0:0:0/51
  • 2408:840d:d057:8000:0:0:0:0/51
  • 2408:840d:d057:a000:0:0:0:0/51
  • 2408:840d:d057:c000:0:0:0:0/51
  • 2408:840d:d057:e000:0:0:0:0/51
  • 2408:840d:d058:0:0:0:0:0/51
  • 2408:840d:d058:2000:0:0:0:0/51
  • 2408:840d:d058:4000:0:0:0:0/51
  • 2408:840d:d058:6000:0:0:0:0/51
  • 2408:840d:d058:8000:0:0:0:0/51
  • 2408:840d:d058:a000:0:0:0:0/51
  • 2408:840d:d058:c000:0:0:0:0/51
  • 2408:840d:d058:e000:0:0:0:0/51
  • 2408:840d:d059:0:0:0:0:0/51
  • 2408:840d:d059:2000:0:0:0:0/51
  • 2408:840d:d059:4000:0:0:0:0/51
  • 2408:840d:d059:6000:0:0:0:0/51
  • 2408:840d:d059:8000:0:0:0:0/51
  • 2408:840d:d059:a000:0:0:0:0/51
  • 2408:840d:d059:c000:0:0:0:0/51
  • 2408:840d:d059:e000:0:0:0:0/51
  • 2408:840d:d05a:0:0:0:0:0/51
  • 2408:840d:d05a:2000:0:0:0:0/51
  • 2408:840d:d05a:4000:0:0:0:0/51
  • 2408:840d:d05a:6000:0:0:0:0/51
  • 2408:840d:d05a:8000:0:0:0:0/51
  • 2408:840d:d05a:a000:0:0:0:0/51
  • 2408:840d:d05a:c000:0:0:0:0/51
  • 2408:840d:d05a:e000:0:0:0:0/51
  • 2408:840d:d05b:0:0:0:0:0/51
  • 2408:840d:d05b:2000:0:0:0:0/51
  • 2408:840d:d05b:4000:0:0:0:0/51
  • 2408:840d:d05b:6000:0:0:0:0/51
  • 2408:840d:d05b:8000:0:0:0:0/51
  • 2408:840d:d05b:a000:0:0:0:0/51
  • 2408:840d:d05b:c000:0:0:0:0/51
  • 2408:840d:d05b:e000:0:0:0:0/51
  • 2408:840d:d05c:0:0:0:0:0/51
  • 2408:840d:d05c:2000:0:0:0:0/51
  • 2408:840d:d05c:4000:0:0:0:0/51
  • 2408:840d:d05c:6000:0:0:0:0/51
  • 2408:840d:d05c:8000:0:0:0:0/51
  • 2408:840d:d05c:a000:0:0:0:0/51
  • 2408:840d:d05c:c000:0:0:0:0/51
  • 2408:840d:d05c:e000:0:0:0:0/51
  • 2408:840d:d05d:0:0:0:0:0/51
  • 2408:840d:d05d:2000:0:0:0:0/51
  • 2408:840d:d05d:4000:0:0:0:0/51
  • 2408:840d:d05d:6000:0:0:0:0/51
  • 2408:840d:d05d:8000:0:0:0:0/51
  • 2408:840d:d05d:a000:0:0:0:0/51
  • 2408:840d:d05d:c000:0:0:0:0/51
  • 2408:840d:d05d:e000:0:0:0:0/51
  • 2408:840d:d05e:0:0:0:0:0/51
  • 2408:840d:d05e:2000:0:0:0:0/51
  • 2408:840d:d05e:4000:0:0:0:0/51
  • 2408:840d:d05e:6000:0:0:0:0/51
  • 2408:840d:d05e:8000:0:0:0:0/51
  • 2408:840d:d05e:a000:0:0:0:0/51
  • 2408:840d:d05e:c000:0:0:0:0/51
  • 2408:840d:d05e:e000:0:0:0:0/51
  • 2408:840d:d05f:0:0:0:0:0/51
  • 2408:840d:d05f:2000:0:0:0:0/51
  • 2408:840d:d05f:4000:0:0:0:0/51
  • 2408:840d:d05f:6000:0:0:0:0/51
  • 2408:840d:d05f:8000:0:0:0:0/51
  • 2408:840d:d05f:a000:0:0:0:0/51
  • 2408:840d:d05f:c000:0:0:0:0/51
  • 2408:840d:d05f:e000:0:0:0:0/51

Get started with 100,000 free lookups: sign up