IP subnet details

2408:840d:d440::/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:d440::/43 subnet

  • 2408:840d:d440:0:0:0:0:0/51
  • 2408:840d:d440:2000:0:0:0:0/51
  • 2408:840d:d440:4000:0:0:0:0/51
  • 2408:840d:d440:6000:0:0:0:0/51
  • 2408:840d:d440:8000:0:0:0:0/51
  • 2408:840d:d440:a000:0:0:0:0/51
  • 2408:840d:d440:c000:0:0:0:0/51
  • 2408:840d:d440:e000:0:0:0:0/51
  • 2408:840d:d441:0:0:0:0:0/51
  • 2408:840d:d441:2000:0:0:0:0/51
  • 2408:840d:d441:4000:0:0:0:0/51
  • 2408:840d:d441:6000:0:0:0:0/51
  • 2408:840d:d441:8000:0:0:0:0/51
  • 2408:840d:d441:a000:0:0:0:0/51
  • 2408:840d:d441:c000:0:0:0:0/51
  • 2408:840d:d441:e000:0:0:0:0/51
  • 2408:840d:d442:0:0:0:0:0/51
  • 2408:840d:d442:2000:0:0:0:0/51
  • 2408:840d:d442:4000:0:0:0:0/51
  • 2408:840d:d442:6000:0:0:0:0/51
  • 2408:840d:d442:8000:0:0:0:0/51
  • 2408:840d:d442:a000:0:0:0:0/51
  • 2408:840d:d442:c000:0:0:0:0/51
  • 2408:840d:d442:e000:0:0:0:0/51
  • 2408:840d:d443:0:0:0:0:0/51
  • 2408:840d:d443:2000:0:0:0:0/51
  • 2408:840d:d443:4000:0:0:0:0/51
  • 2408:840d:d443:6000:0:0:0:0/51
  • 2408:840d:d443:8000:0:0:0:0/51
  • 2408:840d:d443:a000:0:0:0:0/51
  • 2408:840d:d443:c000:0:0:0:0/51
  • 2408:840d:d443:e000:0:0:0:0/51
  • 2408:840d:d444:0:0:0:0:0/51
  • 2408:840d:d444:2000:0:0:0:0/51
  • 2408:840d:d444:4000:0:0:0:0/51
  • 2408:840d:d444:6000:0:0:0:0/51
  • 2408:840d:d444:8000:0:0:0:0/51
  • 2408:840d:d444:a000:0:0:0:0/51
  • 2408:840d:d444:c000:0:0:0:0/51
  • 2408:840d:d444:e000:0:0:0:0/51
  • 2408:840d:d445:0:0:0:0:0/51
  • 2408:840d:d445:2000:0:0:0:0/51
  • 2408:840d:d445:4000:0:0:0:0/51
  • 2408:840d:d445:6000:0:0:0:0/51
  • 2408:840d:d445:8000:0:0:0:0/51
  • 2408:840d:d445:a000:0:0:0:0/51
  • 2408:840d:d445:c000:0:0:0:0/51
  • 2408:840d:d445:e000:0:0:0:0/51
  • 2408:840d:d446:0:0:0:0:0/51
  • 2408:840d:d446:2000:0:0:0:0/51
  • 2408:840d:d446:4000:0:0:0:0/51
  • 2408:840d:d446:6000:0:0:0:0/51
  • 2408:840d:d446:8000:0:0:0:0/51
  • 2408:840d:d446:a000:0:0:0:0/51
  • 2408:840d:d446:c000:0:0:0:0/51
  • 2408:840d:d446:e000:0:0:0:0/51
  • 2408:840d:d447:0:0:0:0:0/51
  • 2408:840d:d447:2000:0:0:0:0/51
  • 2408:840d:d447:4000:0:0:0:0/51
  • 2408:840d:d447:6000:0:0:0:0/51
  • 2408:840d:d447:8000:0:0:0:0/51
  • 2408:840d:d447:a000:0:0:0:0/51
  • 2408:840d:d447:c000:0:0:0:0/51
  • 2408:840d:d447:e000:0:0:0:0/51
  • 2408:840d:d448:0:0:0:0:0/51
  • 2408:840d:d448:2000:0:0:0:0/51
  • 2408:840d:d448:4000:0:0:0:0/51
  • 2408:840d:d448:6000:0:0:0:0/51
  • 2408:840d:d448:8000:0:0:0:0/51
  • 2408:840d:d448:a000:0:0:0:0/51
  • 2408:840d:d448:c000:0:0:0:0/51
  • 2408:840d:d448:e000:0:0:0:0/51
  • 2408:840d:d449:0:0:0:0:0/51
  • 2408:840d:d449:2000:0:0:0:0/51
  • 2408:840d:d449:4000:0:0:0:0/51
  • 2408:840d:d449:6000:0:0:0:0/51
  • 2408:840d:d449:8000:0:0:0:0/51
  • 2408:840d:d449:a000:0:0:0:0/51
  • 2408:840d:d449:c000:0:0:0:0/51
  • 2408:840d:d449:e000:0:0:0:0/51
  • 2408:840d:d44a:0:0:0:0:0/51
  • 2408:840d:d44a:2000:0:0:0:0/51
  • 2408:840d:d44a:4000:0:0:0:0/51
  • 2408:840d:d44a:6000:0:0:0:0/51
  • 2408:840d:d44a:8000:0:0:0:0/51
  • 2408:840d:d44a:a000:0:0:0:0/51
  • 2408:840d:d44a:c000:0:0:0:0/51
  • 2408:840d:d44a:e000:0:0:0:0/51
  • 2408:840d:d44b:0:0:0:0:0/51
  • 2408:840d:d44b:2000:0:0:0:0/51
  • 2408:840d:d44b:4000:0:0:0:0/51
  • 2408:840d:d44b:6000:0:0:0:0/51
  • 2408:840d:d44b:8000:0:0:0:0/51
  • 2408:840d:d44b:a000:0:0:0:0/51
  • 2408:840d:d44b:c000:0:0:0:0/51
  • 2408:840d:d44b:e000:0:0:0:0/51
  • 2408:840d:d44c:0:0:0:0:0/51
  • 2408:840d:d44c:2000:0:0:0:0/51
  • 2408:840d:d44c:4000:0:0:0:0/51
  • 2408:840d:d44c:6000:0:0:0:0/51
  • 2408:840d:d44c:8000:0:0:0:0/51
  • 2408:840d:d44c:a000:0:0:0:0/51
  • 2408:840d:d44c:c000:0:0:0:0/51
  • 2408:840d:d44c:e000:0:0:0:0/51
  • 2408:840d:d44d:0:0:0:0:0/51
  • 2408:840d:d44d:2000:0:0:0:0/51
  • 2408:840d:d44d:4000:0:0:0:0/51
  • 2408:840d:d44d:6000:0:0:0:0/51
  • 2408:840d:d44d:8000:0:0:0:0/51
  • 2408:840d:d44d:a000:0:0:0:0/51
  • 2408:840d:d44d:c000:0:0:0:0/51
  • 2408:840d:d44d:e000:0:0:0:0/51
  • 2408:840d:d44e:0:0:0:0:0/51
  • 2408:840d:d44e:2000:0:0:0:0/51
  • 2408:840d:d44e:4000:0:0:0:0/51
  • 2408:840d:d44e:6000:0:0:0:0/51
  • 2408:840d:d44e:8000:0:0:0:0/51
  • 2408:840d:d44e:a000:0:0:0:0/51
  • 2408:840d:d44e:c000:0:0:0:0/51
  • 2408:840d:d44e:e000:0:0:0:0/51
  • 2408:840d:d44f:0:0:0:0:0/51
  • 2408:840d:d44f:2000:0:0:0:0/51
  • 2408:840d:d44f:4000:0:0:0:0/51
  • 2408:840d:d44f:6000:0:0:0:0/51
  • 2408:840d:d44f:8000:0:0:0:0/51
  • 2408:840d:d44f:a000:0:0:0:0/51
  • 2408:840d:d44f:c000:0:0:0:0/51
  • 2408:840d:d44f:e000:0:0:0:0/51
  • 2408:840d:d450:0:0:0:0:0/51
  • 2408:840d:d450:2000:0:0:0:0/51
  • 2408:840d:d450:4000:0:0:0:0/51
  • 2408:840d:d450:6000:0:0:0:0/51
  • 2408:840d:d450:8000:0:0:0:0/51
  • 2408:840d:d450:a000:0:0:0:0/51
  • 2408:840d:d450:c000:0:0:0:0/51
  • 2408:840d:d450:e000:0:0:0:0/51
  • 2408:840d:d451:0:0:0:0:0/51
  • 2408:840d:d451:2000:0:0:0:0/51
  • 2408:840d:d451:4000:0:0:0:0/51
  • 2408:840d:d451:6000:0:0:0:0/51
  • 2408:840d:d451:8000:0:0:0:0/51
  • 2408:840d:d451:a000:0:0:0:0/51
  • 2408:840d:d451:c000:0:0:0:0/51
  • 2408:840d:d451:e000:0:0:0:0/51
  • 2408:840d:d452:0:0:0:0:0/51
  • 2408:840d:d452:2000:0:0:0:0/51
  • 2408:840d:d452:4000:0:0:0:0/51
  • 2408:840d:d452:6000:0:0:0:0/51
  • 2408:840d:d452:8000:0:0:0:0/51
  • 2408:840d:d452:a000:0:0:0:0/51
  • 2408:840d:d452:c000:0:0:0:0/51
  • 2408:840d:d452:e000:0:0:0:0/51
  • 2408:840d:d453:0:0:0:0:0/51
  • 2408:840d:d453:2000:0:0:0:0/51
  • 2408:840d:d453:4000:0:0:0:0/51
  • 2408:840d:d453:6000:0:0:0:0/51
  • 2408:840d:d453:8000:0:0:0:0/51
  • 2408:840d:d453:a000:0:0:0:0/51
  • 2408:840d:d453:c000:0:0:0:0/51
  • 2408:840d:d453:e000:0:0:0:0/51
  • 2408:840d:d454:0:0:0:0:0/51
  • 2408:840d:d454:2000:0:0:0:0/51
  • 2408:840d:d454:4000:0:0:0:0/51
  • 2408:840d:d454:6000:0:0:0:0/51
  • 2408:840d:d454:8000:0:0:0:0/51
  • 2408:840d:d454:a000:0:0:0:0/51
  • 2408:840d:d454:c000:0:0:0:0/51
  • 2408:840d:d454:e000:0:0:0:0/51
  • 2408:840d:d455:0:0:0:0:0/51
  • 2408:840d:d455:2000:0:0:0:0/51
  • 2408:840d:d455:4000:0:0:0:0/51
  • 2408:840d:d455:6000:0:0:0:0/51
  • 2408:840d:d455:8000:0:0:0:0/51
  • 2408:840d:d455:a000:0:0:0:0/51
  • 2408:840d:d455:c000:0:0:0:0/51
  • 2408:840d:d455:e000:0:0:0:0/51
  • 2408:840d:d456:0:0:0:0:0/51
  • 2408:840d:d456:2000:0:0:0:0/51
  • 2408:840d:d456:4000:0:0:0:0/51
  • 2408:840d:d456:6000:0:0:0:0/51
  • 2408:840d:d456:8000:0:0:0:0/51
  • 2408:840d:d456:a000:0:0:0:0/51
  • 2408:840d:d456:c000:0:0:0:0/51
  • 2408:840d:d456:e000:0:0:0:0/51
  • 2408:840d:d457:0:0:0:0:0/51
  • 2408:840d:d457:2000:0:0:0:0/51
  • 2408:840d:d457:4000:0:0:0:0/51
  • 2408:840d:d457:6000:0:0:0:0/51
  • 2408:840d:d457:8000:0:0:0:0/51
  • 2408:840d:d457:a000:0:0:0:0/51
  • 2408:840d:d457:c000:0:0:0:0/51
  • 2408:840d:d457:e000:0:0:0:0/51
  • 2408:840d:d458:0:0:0:0:0/51
  • 2408:840d:d458:2000:0:0:0:0/51
  • 2408:840d:d458:4000:0:0:0:0/51
  • 2408:840d:d458:6000:0:0:0:0/51
  • 2408:840d:d458:8000:0:0:0:0/51
  • 2408:840d:d458:a000:0:0:0:0/51
  • 2408:840d:d458:c000:0:0:0:0/51
  • 2408:840d:d458:e000:0:0:0:0/51
  • 2408:840d:d459:0:0:0:0:0/51
  • 2408:840d:d459:2000:0:0:0:0/51
  • 2408:840d:d459:4000:0:0:0:0/51
  • 2408:840d:d459:6000:0:0:0:0/51
  • 2408:840d:d459:8000:0:0:0:0/51
  • 2408:840d:d459:a000:0:0:0:0/51
  • 2408:840d:d459:c000:0:0:0:0/51
  • 2408:840d:d459:e000:0:0:0:0/51
  • 2408:840d:d45a:0:0:0:0:0/51
  • 2408:840d:d45a:2000:0:0:0:0/51
  • 2408:840d:d45a:4000:0:0:0:0/51
  • 2408:840d:d45a:6000:0:0:0:0/51
  • 2408:840d:d45a:8000:0:0:0:0/51
  • 2408:840d:d45a:a000:0:0:0:0/51
  • 2408:840d:d45a:c000:0:0:0:0/51
  • 2408:840d:d45a:e000:0:0:0:0/51
  • 2408:840d:d45b:0:0:0:0:0/51
  • 2408:840d:d45b:2000:0:0:0:0/51
  • 2408:840d:d45b:4000:0:0:0:0/51
  • 2408:840d:d45b:6000:0:0:0:0/51
  • 2408:840d:d45b:8000:0:0:0:0/51
  • 2408:840d:d45b:a000:0:0:0:0/51
  • 2408:840d:d45b:c000:0:0:0:0/51
  • 2408:840d:d45b:e000:0:0:0:0/51
  • 2408:840d:d45c:0:0:0:0:0/51
  • 2408:840d:d45c:2000:0:0:0:0/51
  • 2408:840d:d45c:4000:0:0:0:0/51
  • 2408:840d:d45c:6000:0:0:0:0/51
  • 2408:840d:d45c:8000:0:0:0:0/51
  • 2408:840d:d45c:a000:0:0:0:0/51
  • 2408:840d:d45c:c000:0:0:0:0/51
  • 2408:840d:d45c:e000:0:0:0:0/51
  • 2408:840d:d45d:0:0:0:0:0/51
  • 2408:840d:d45d:2000:0:0:0:0/51
  • 2408:840d:d45d:4000:0:0:0:0/51
  • 2408:840d:d45d:6000:0:0:0:0/51
  • 2408:840d:d45d:8000:0:0:0:0/51
  • 2408:840d:d45d:a000:0:0:0:0/51
  • 2408:840d:d45d:c000:0:0:0:0/51
  • 2408:840d:d45d:e000:0:0:0:0/51
  • 2408:840d:d45e:0:0:0:0:0/51
  • 2408:840d:d45e:2000:0:0:0:0/51
  • 2408:840d:d45e:4000:0:0:0:0/51
  • 2408:840d:d45e:6000:0:0:0:0/51
  • 2408:840d:d45e:8000:0:0:0:0/51
  • 2408:840d:d45e:a000:0:0:0:0/51
  • 2408:840d:d45e:c000:0:0:0:0/51
  • 2408:840d:d45e:e000:0:0:0:0/51
  • 2408:840d:d45f:0:0:0:0:0/51
  • 2408:840d:d45f:2000:0:0:0:0/51
  • 2408:840d:d45f:4000:0:0:0:0/51
  • 2408:840d:d45f:6000:0:0:0:0/51
  • 2408:840d:d45f:8000:0:0:0:0/51
  • 2408:840d:d45f:a000:0:0:0:0/51
  • 2408:840d:d45f:c000:0:0:0:0/51
  • 2408:840d:d45f:e000:0:0:0:0/51

Get started with 100,000 free lookups: sign up