IP subnet details

2408:840d:440::/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 2025-10-17
mnt-by: MAINT-CNCGROUP
last-modified: 2025-11-18T00:26:20Z
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 2025-10-17
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-10-17T02:26:56Z
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:440::/43 subnet

  • 2408:840d:440:0:0:0:0:0/51
  • 2408:840d:440:2000:0:0:0:0/51
  • 2408:840d:440:4000:0:0:0:0/51
  • 2408:840d:440:6000:0:0:0:0/51
  • 2408:840d:440:8000:0:0:0:0/51
  • 2408:840d:440:a000:0:0:0:0/51
  • 2408:840d:440:c000:0:0:0:0/51
  • 2408:840d:440:e000:0:0:0:0/51
  • 2408:840d:441:0:0:0:0:0/51
  • 2408:840d:441:2000:0:0:0:0/51
  • 2408:840d:441:4000:0:0:0:0/51
  • 2408:840d:441:6000:0:0:0:0/51
  • 2408:840d:441:8000:0:0:0:0/51
  • 2408:840d:441:a000:0:0:0:0/51
  • 2408:840d:441:c000:0:0:0:0/51
  • 2408:840d:441:e000:0:0:0:0/51
  • 2408:840d:442:0:0:0:0:0/51
  • 2408:840d:442:2000:0:0:0:0/51
  • 2408:840d:442:4000:0:0:0:0/51
  • 2408:840d:442:6000:0:0:0:0/51
  • 2408:840d:442:8000:0:0:0:0/51
  • 2408:840d:442:a000:0:0:0:0/51
  • 2408:840d:442:c000:0:0:0:0/51
  • 2408:840d:442:e000:0:0:0:0/51
  • 2408:840d:443:0:0:0:0:0/51
  • 2408:840d:443:2000:0:0:0:0/51
  • 2408:840d:443:4000:0:0:0:0/51
  • 2408:840d:443:6000:0:0:0:0/51
  • 2408:840d:443:8000:0:0:0:0/51
  • 2408:840d:443:a000:0:0:0:0/51
  • 2408:840d:443:c000:0:0:0:0/51
  • 2408:840d:443:e000:0:0:0:0/51
  • 2408:840d:444:0:0:0:0:0/51
  • 2408:840d:444:2000:0:0:0:0/51
  • 2408:840d:444:4000:0:0:0:0/51
  • 2408:840d:444:6000:0:0:0:0/51
  • 2408:840d:444:8000:0:0:0:0/51
  • 2408:840d:444:a000:0:0:0:0/51
  • 2408:840d:444:c000:0:0:0:0/51
  • 2408:840d:444:e000:0:0:0:0/51
  • 2408:840d:445:0:0:0:0:0/51
  • 2408:840d:445:2000:0:0:0:0/51
  • 2408:840d:445:4000:0:0:0:0/51
  • 2408:840d:445:6000:0:0:0:0/51
  • 2408:840d:445:8000:0:0:0:0/51
  • 2408:840d:445:a000:0:0:0:0/51
  • 2408:840d:445:c000:0:0:0:0/51
  • 2408:840d:445:e000:0:0:0:0/51
  • 2408:840d:446:0:0:0:0:0/51
  • 2408:840d:446:2000:0:0:0:0/51
  • 2408:840d:446:4000:0:0:0:0/51
  • 2408:840d:446:6000:0:0:0:0/51
  • 2408:840d:446:8000:0:0:0:0/51
  • 2408:840d:446:a000:0:0:0:0/51
  • 2408:840d:446:c000:0:0:0:0/51
  • 2408:840d:446:e000:0:0:0:0/51
  • 2408:840d:447:0:0:0:0:0/51
  • 2408:840d:447:2000:0:0:0:0/51
  • 2408:840d:447:4000:0:0:0:0/51
  • 2408:840d:447:6000:0:0:0:0/51
  • 2408:840d:447:8000:0:0:0:0/51
  • 2408:840d:447:a000:0:0:0:0/51
  • 2408:840d:447:c000:0:0:0:0/51
  • 2408:840d:447:e000:0:0:0:0/51
  • 2408:840d:448:0:0:0:0:0/51
  • 2408:840d:448:2000:0:0:0:0/51
  • 2408:840d:448:4000:0:0:0:0/51
  • 2408:840d:448:6000:0:0:0:0/51
  • 2408:840d:448:8000:0:0:0:0/51
  • 2408:840d:448:a000:0:0:0:0/51
  • 2408:840d:448:c000:0:0:0:0/51
  • 2408:840d:448:e000:0:0:0:0/51
  • 2408:840d:449:0:0:0:0:0/51
  • 2408:840d:449:2000:0:0:0:0/51
  • 2408:840d:449:4000:0:0:0:0/51
  • 2408:840d:449:6000:0:0:0:0/51
  • 2408:840d:449:8000:0:0:0:0/51
  • 2408:840d:449:a000:0:0:0:0/51
  • 2408:840d:449:c000:0:0:0:0/51
  • 2408:840d:449:e000:0:0:0:0/51
  • 2408:840d:44a:0:0:0:0:0/51
  • 2408:840d:44a:2000:0:0:0:0/51
  • 2408:840d:44a:4000:0:0:0:0/51
  • 2408:840d:44a:6000:0:0:0:0/51
  • 2408:840d:44a:8000:0:0:0:0/51
  • 2408:840d:44a:a000:0:0:0:0/51
  • 2408:840d:44a:c000:0:0:0:0/51
  • 2408:840d:44a:e000:0:0:0:0/51
  • 2408:840d:44b:0:0:0:0:0/51
  • 2408:840d:44b:2000:0:0:0:0/51
  • 2408:840d:44b:4000:0:0:0:0/51
  • 2408:840d:44b:6000:0:0:0:0/51
  • 2408:840d:44b:8000:0:0:0:0/51
  • 2408:840d:44b:a000:0:0:0:0/51
  • 2408:840d:44b:c000:0:0:0:0/51
  • 2408:840d:44b:e000:0:0:0:0/51
  • 2408:840d:44c:0:0:0:0:0/51
  • 2408:840d:44c:2000:0:0:0:0/51
  • 2408:840d:44c:4000:0:0:0:0/51
  • 2408:840d:44c:6000:0:0:0:0/51
  • 2408:840d:44c:8000:0:0:0:0/51
  • 2408:840d:44c:a000:0:0:0:0/51
  • 2408:840d:44c:c000:0:0:0:0/51
  • 2408:840d:44c:e000:0:0:0:0/51
  • 2408:840d:44d:0:0:0:0:0/51
  • 2408:840d:44d:2000:0:0:0:0/51
  • 2408:840d:44d:4000:0:0:0:0/51
  • 2408:840d:44d:6000:0:0:0:0/51
  • 2408:840d:44d:8000:0:0:0:0/51
  • 2408:840d:44d:a000:0:0:0:0/51
  • 2408:840d:44d:c000:0:0:0:0/51
  • 2408:840d:44d:e000:0:0:0:0/51
  • 2408:840d:44e:0:0:0:0:0/51
  • 2408:840d:44e:2000:0:0:0:0/51
  • 2408:840d:44e:4000:0:0:0:0/51
  • 2408:840d:44e:6000:0:0:0:0/51
  • 2408:840d:44e:8000:0:0:0:0/51
  • 2408:840d:44e:a000:0:0:0:0/51
  • 2408:840d:44e:c000:0:0:0:0/51
  • 2408:840d:44e:e000:0:0:0:0/51
  • 2408:840d:44f:0:0:0:0:0/51
  • 2408:840d:44f:2000:0:0:0:0/51
  • 2408:840d:44f:4000:0:0:0:0/51
  • 2408:840d:44f:6000:0:0:0:0/51
  • 2408:840d:44f:8000:0:0:0:0/51
  • 2408:840d:44f:a000:0:0:0:0/51
  • 2408:840d:44f:c000:0:0:0:0/51
  • 2408:840d:44f:e000:0:0:0:0/51
  • 2408:840d:450:0:0:0:0:0/51
  • 2408:840d:450:2000:0:0:0:0/51
  • 2408:840d:450:4000:0:0:0:0/51
  • 2408:840d:450:6000:0:0:0:0/51
  • 2408:840d:450:8000:0:0:0:0/51
  • 2408:840d:450:a000:0:0:0:0/51
  • 2408:840d:450:c000:0:0:0:0/51
  • 2408:840d:450:e000:0:0:0:0/51
  • 2408:840d:451:0:0:0:0:0/51
  • 2408:840d:451:2000:0:0:0:0/51
  • 2408:840d:451:4000:0:0:0:0/51
  • 2408:840d:451:6000:0:0:0:0/51
  • 2408:840d:451:8000:0:0:0:0/51
  • 2408:840d:451:a000:0:0:0:0/51
  • 2408:840d:451:c000:0:0:0:0/51
  • 2408:840d:451:e000:0:0:0:0/51
  • 2408:840d:452:0:0:0:0:0/51
  • 2408:840d:452:2000:0:0:0:0/51
  • 2408:840d:452:4000:0:0:0:0/51
  • 2408:840d:452:6000:0:0:0:0/51
  • 2408:840d:452:8000:0:0:0:0/51
  • 2408:840d:452:a000:0:0:0:0/51
  • 2408:840d:452:c000:0:0:0:0/51
  • 2408:840d:452:e000:0:0:0:0/51
  • 2408:840d:453:0:0:0:0:0/51
  • 2408:840d:453:2000:0:0:0:0/51
  • 2408:840d:453:4000:0:0:0:0/51
  • 2408:840d:453:6000:0:0:0:0/51
  • 2408:840d:453:8000:0:0:0:0/51
  • 2408:840d:453:a000:0:0:0:0/51
  • 2408:840d:453:c000:0:0:0:0/51
  • 2408:840d:453:e000:0:0:0:0/51
  • 2408:840d:454:0:0:0:0:0/51
  • 2408:840d:454:2000:0:0:0:0/51
  • 2408:840d:454:4000:0:0:0:0/51
  • 2408:840d:454:6000:0:0:0:0/51
  • 2408:840d:454:8000:0:0:0:0/51
  • 2408:840d:454:a000:0:0:0:0/51
  • 2408:840d:454:c000:0:0:0:0/51
  • 2408:840d:454:e000:0:0:0:0/51
  • 2408:840d:455:0:0:0:0:0/51
  • 2408:840d:455:2000:0:0:0:0/51
  • 2408:840d:455:4000:0:0:0:0/51
  • 2408:840d:455:6000:0:0:0:0/51
  • 2408:840d:455:8000:0:0:0:0/51
  • 2408:840d:455:a000:0:0:0:0/51
  • 2408:840d:455:c000:0:0:0:0/51
  • 2408:840d:455:e000:0:0:0:0/51
  • 2408:840d:456:0:0:0:0:0/51
  • 2408:840d:456:2000:0:0:0:0/51
  • 2408:840d:456:4000:0:0:0:0/51
  • 2408:840d:456:6000:0:0:0:0/51
  • 2408:840d:456:8000:0:0:0:0/51
  • 2408:840d:456:a000:0:0:0:0/51
  • 2408:840d:456:c000:0:0:0:0/51
  • 2408:840d:456:e000:0:0:0:0/51
  • 2408:840d:457:0:0:0:0:0/51
  • 2408:840d:457:2000:0:0:0:0/51
  • 2408:840d:457:4000:0:0:0:0/51
  • 2408:840d:457:6000:0:0:0:0/51
  • 2408:840d:457:8000:0:0:0:0/51
  • 2408:840d:457:a000:0:0:0:0/51
  • 2408:840d:457:c000:0:0:0:0/51
  • 2408:840d:457:e000:0:0:0:0/51
  • 2408:840d:458:0:0:0:0:0/51
  • 2408:840d:458:2000:0:0:0:0/51
  • 2408:840d:458:4000:0:0:0:0/51
  • 2408:840d:458:6000:0:0:0:0/51
  • 2408:840d:458:8000:0:0:0:0/51
  • 2408:840d:458:a000:0:0:0:0/51
  • 2408:840d:458:c000:0:0:0:0/51
  • 2408:840d:458:e000:0:0:0:0/51
  • 2408:840d:459:0:0:0:0:0/51
  • 2408:840d:459:2000:0:0:0:0/51
  • 2408:840d:459:4000:0:0:0:0/51
  • 2408:840d:459:6000:0:0:0:0/51
  • 2408:840d:459:8000:0:0:0:0/51
  • 2408:840d:459:a000:0:0:0:0/51
  • 2408:840d:459:c000:0:0:0:0/51
  • 2408:840d:459:e000:0:0:0:0/51
  • 2408:840d:45a:0:0:0:0:0/51
  • 2408:840d:45a:2000:0:0:0:0/51
  • 2408:840d:45a:4000:0:0:0:0/51
  • 2408:840d:45a:6000:0:0:0:0/51
  • 2408:840d:45a:8000:0:0:0:0/51
  • 2408:840d:45a:a000:0:0:0:0/51
  • 2408:840d:45a:c000:0:0:0:0/51
  • 2408:840d:45a:e000:0:0:0:0/51
  • 2408:840d:45b:0:0:0:0:0/51
  • 2408:840d:45b:2000:0:0:0:0/51
  • 2408:840d:45b:4000:0:0:0:0/51
  • 2408:840d:45b:6000:0:0:0:0/51
  • 2408:840d:45b:8000:0:0:0:0/51
  • 2408:840d:45b:a000:0:0:0:0/51
  • 2408:840d:45b:c000:0:0:0:0/51
  • 2408:840d:45b:e000:0:0:0:0/51
  • 2408:840d:45c:0:0:0:0:0/51
  • 2408:840d:45c:2000:0:0:0:0/51
  • 2408:840d:45c:4000:0:0:0:0/51
  • 2408:840d:45c:6000:0:0:0:0/51
  • 2408:840d:45c:8000:0:0:0:0/51
  • 2408:840d:45c:a000:0:0:0:0/51
  • 2408:840d:45c:c000:0:0:0:0/51
  • 2408:840d:45c:e000:0:0:0:0/51
  • 2408:840d:45d:0:0:0:0:0/51
  • 2408:840d:45d:2000:0:0:0:0/51
  • 2408:840d:45d:4000:0:0:0:0/51
  • 2408:840d:45d:6000:0:0:0:0/51
  • 2408:840d:45d:8000:0:0:0:0/51
  • 2408:840d:45d:a000:0:0:0:0/51
  • 2408:840d:45d:c000:0:0:0:0/51
  • 2408:840d:45d:e000:0:0:0:0/51
  • 2408:840d:45e:0:0:0:0:0/51
  • 2408:840d:45e:2000:0:0:0:0/51
  • 2408:840d:45e:4000:0:0:0:0/51
  • 2408:840d:45e:6000:0:0:0:0/51
  • 2408:840d:45e:8000:0:0:0:0/51
  • 2408:840d:45e:a000:0:0:0:0/51
  • 2408:840d:45e:c000:0:0:0:0/51
  • 2408:840d:45e:e000:0:0:0:0/51
  • 2408:840d:45f:0:0:0:0:0/51
  • 2408:840d:45f:2000:0:0:0:0/51
  • 2408:840d:45f:4000:0:0:0:0/51
  • 2408:840d:45f:6000:0:0:0:0/51
  • 2408:840d:45f:8000:0:0:0:0/51
  • 2408:840d:45f:a000:0:0:0:0/51
  • 2408:840d:45f:c000:0:0:0:0/51
  • 2408:840d:45f:e000:0:0:0:0/51

Get started with 100,000 free lookups: sign up