IP subnet details

2408:840d:1a40::/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:1a40::/43 subnet

  • 2408:840d:1a40:0:0:0:0:0/51
  • 2408:840d:1a40:2000:0:0:0:0/51
  • 2408:840d:1a40:4000:0:0:0:0/51
  • 2408:840d:1a40:6000:0:0:0:0/51
  • 2408:840d:1a40:8000:0:0:0:0/51
  • 2408:840d:1a40:a000:0:0:0:0/51
  • 2408:840d:1a40:c000:0:0:0:0/51
  • 2408:840d:1a40:e000:0:0:0:0/51
  • 2408:840d:1a41:0:0:0:0:0/51
  • 2408:840d:1a41:2000:0:0:0:0/51
  • 2408:840d:1a41:4000:0:0:0:0/51
  • 2408:840d:1a41:6000:0:0:0:0/51
  • 2408:840d:1a41:8000:0:0:0:0/51
  • 2408:840d:1a41:a000:0:0:0:0/51
  • 2408:840d:1a41:c000:0:0:0:0/51
  • 2408:840d:1a41:e000:0:0:0:0/51
  • 2408:840d:1a42:0:0:0:0:0/51
  • 2408:840d:1a42:2000:0:0:0:0/51
  • 2408:840d:1a42:4000:0:0:0:0/51
  • 2408:840d:1a42:6000:0:0:0:0/51
  • 2408:840d:1a42:8000:0:0:0:0/51
  • 2408:840d:1a42:a000:0:0:0:0/51
  • 2408:840d:1a42:c000:0:0:0:0/51
  • 2408:840d:1a42:e000:0:0:0:0/51
  • 2408:840d:1a43:0:0:0:0:0/51
  • 2408:840d:1a43:2000:0:0:0:0/51
  • 2408:840d:1a43:4000:0:0:0:0/51
  • 2408:840d:1a43:6000:0:0:0:0/51
  • 2408:840d:1a43:8000:0:0:0:0/51
  • 2408:840d:1a43:a000:0:0:0:0/51
  • 2408:840d:1a43:c000:0:0:0:0/51
  • 2408:840d:1a43:e000:0:0:0:0/51
  • 2408:840d:1a44:0:0:0:0:0/51
  • 2408:840d:1a44:2000:0:0:0:0/51
  • 2408:840d:1a44:4000:0:0:0:0/51
  • 2408:840d:1a44:6000:0:0:0:0/51
  • 2408:840d:1a44:8000:0:0:0:0/51
  • 2408:840d:1a44:a000:0:0:0:0/51
  • 2408:840d:1a44:c000:0:0:0:0/51
  • 2408:840d:1a44:e000:0:0:0:0/51
  • 2408:840d:1a45:0:0:0:0:0/51
  • 2408:840d:1a45:2000:0:0:0:0/51
  • 2408:840d:1a45:4000:0:0:0:0/51
  • 2408:840d:1a45:6000:0:0:0:0/51
  • 2408:840d:1a45:8000:0:0:0:0/51
  • 2408:840d:1a45:a000:0:0:0:0/51
  • 2408:840d:1a45:c000:0:0:0:0/51
  • 2408:840d:1a45:e000:0:0:0:0/51
  • 2408:840d:1a46:0:0:0:0:0/51
  • 2408:840d:1a46:2000:0:0:0:0/51
  • 2408:840d:1a46:4000:0:0:0:0/51
  • 2408:840d:1a46:6000:0:0:0:0/51
  • 2408:840d:1a46:8000:0:0:0:0/51
  • 2408:840d:1a46:a000:0:0:0:0/51
  • 2408:840d:1a46:c000:0:0:0:0/51
  • 2408:840d:1a46:e000:0:0:0:0/51
  • 2408:840d:1a47:0:0:0:0:0/51
  • 2408:840d:1a47:2000:0:0:0:0/51
  • 2408:840d:1a47:4000:0:0:0:0/51
  • 2408:840d:1a47:6000:0:0:0:0/51
  • 2408:840d:1a47:8000:0:0:0:0/51
  • 2408:840d:1a47:a000:0:0:0:0/51
  • 2408:840d:1a47:c000:0:0:0:0/51
  • 2408:840d:1a47:e000:0:0:0:0/51
  • 2408:840d:1a48:0:0:0:0:0/51
  • 2408:840d:1a48:2000:0:0:0:0/51
  • 2408:840d:1a48:4000:0:0:0:0/51
  • 2408:840d:1a48:6000:0:0:0:0/51
  • 2408:840d:1a48:8000:0:0:0:0/51
  • 2408:840d:1a48:a000:0:0:0:0/51
  • 2408:840d:1a48:c000:0:0:0:0/51
  • 2408:840d:1a48:e000:0:0:0:0/51
  • 2408:840d:1a49:0:0:0:0:0/51
  • 2408:840d:1a49:2000:0:0:0:0/51
  • 2408:840d:1a49:4000:0:0:0:0/51
  • 2408:840d:1a49:6000:0:0:0:0/51
  • 2408:840d:1a49:8000:0:0:0:0/51
  • 2408:840d:1a49:a000:0:0:0:0/51
  • 2408:840d:1a49:c000:0:0:0:0/51
  • 2408:840d:1a49:e000:0:0:0:0/51
  • 2408:840d:1a4a:0:0:0:0:0/51
  • 2408:840d:1a4a:2000:0:0:0:0/51
  • 2408:840d:1a4a:4000:0:0:0:0/51
  • 2408:840d:1a4a:6000:0:0:0:0/51
  • 2408:840d:1a4a:8000:0:0:0:0/51
  • 2408:840d:1a4a:a000:0:0:0:0/51
  • 2408:840d:1a4a:c000:0:0:0:0/51
  • 2408:840d:1a4a:e000:0:0:0:0/51
  • 2408:840d:1a4b:0:0:0:0:0/51
  • 2408:840d:1a4b:2000:0:0:0:0/51
  • 2408:840d:1a4b:4000:0:0:0:0/51
  • 2408:840d:1a4b:6000:0:0:0:0/51
  • 2408:840d:1a4b:8000:0:0:0:0/51
  • 2408:840d:1a4b:a000:0:0:0:0/51
  • 2408:840d:1a4b:c000:0:0:0:0/51
  • 2408:840d:1a4b:e000:0:0:0:0/51
  • 2408:840d:1a4c:0:0:0:0:0/51
  • 2408:840d:1a4c:2000:0:0:0:0/51
  • 2408:840d:1a4c:4000:0:0:0:0/51
  • 2408:840d:1a4c:6000:0:0:0:0/51
  • 2408:840d:1a4c:8000:0:0:0:0/51
  • 2408:840d:1a4c:a000:0:0:0:0/51
  • 2408:840d:1a4c:c000:0:0:0:0/51
  • 2408:840d:1a4c:e000:0:0:0:0/51
  • 2408:840d:1a4d:0:0:0:0:0/51
  • 2408:840d:1a4d:2000:0:0:0:0/51
  • 2408:840d:1a4d:4000:0:0:0:0/51
  • 2408:840d:1a4d:6000:0:0:0:0/51
  • 2408:840d:1a4d:8000:0:0:0:0/51
  • 2408:840d:1a4d:a000:0:0:0:0/51
  • 2408:840d:1a4d:c000:0:0:0:0/51
  • 2408:840d:1a4d:e000:0:0:0:0/51
  • 2408:840d:1a4e:0:0:0:0:0/51
  • 2408:840d:1a4e:2000:0:0:0:0/51
  • 2408:840d:1a4e:4000:0:0:0:0/51
  • 2408:840d:1a4e:6000:0:0:0:0/51
  • 2408:840d:1a4e:8000:0:0:0:0/51
  • 2408:840d:1a4e:a000:0:0:0:0/51
  • 2408:840d:1a4e:c000:0:0:0:0/51
  • 2408:840d:1a4e:e000:0:0:0:0/51
  • 2408:840d:1a4f:0:0:0:0:0/51
  • 2408:840d:1a4f:2000:0:0:0:0/51
  • 2408:840d:1a4f:4000:0:0:0:0/51
  • 2408:840d:1a4f:6000:0:0:0:0/51
  • 2408:840d:1a4f:8000:0:0:0:0/51
  • 2408:840d:1a4f:a000:0:0:0:0/51
  • 2408:840d:1a4f:c000:0:0:0:0/51
  • 2408:840d:1a4f:e000:0:0:0:0/51
  • 2408:840d:1a50:0:0:0:0:0/51
  • 2408:840d:1a50:2000:0:0:0:0/51
  • 2408:840d:1a50:4000:0:0:0:0/51
  • 2408:840d:1a50:6000:0:0:0:0/51
  • 2408:840d:1a50:8000:0:0:0:0/51
  • 2408:840d:1a50:a000:0:0:0:0/51
  • 2408:840d:1a50:c000:0:0:0:0/51
  • 2408:840d:1a50:e000:0:0:0:0/51
  • 2408:840d:1a51:0:0:0:0:0/51
  • 2408:840d:1a51:2000:0:0:0:0/51
  • 2408:840d:1a51:4000:0:0:0:0/51
  • 2408:840d:1a51:6000:0:0:0:0/51
  • 2408:840d:1a51:8000:0:0:0:0/51
  • 2408:840d:1a51:a000:0:0:0:0/51
  • 2408:840d:1a51:c000:0:0:0:0/51
  • 2408:840d:1a51:e000:0:0:0:0/51
  • 2408:840d:1a52:0:0:0:0:0/51
  • 2408:840d:1a52:2000:0:0:0:0/51
  • 2408:840d:1a52:4000:0:0:0:0/51
  • 2408:840d:1a52:6000:0:0:0:0/51
  • 2408:840d:1a52:8000:0:0:0:0/51
  • 2408:840d:1a52:a000:0:0:0:0/51
  • 2408:840d:1a52:c000:0:0:0:0/51
  • 2408:840d:1a52:e000:0:0:0:0/51
  • 2408:840d:1a53:0:0:0:0:0/51
  • 2408:840d:1a53:2000:0:0:0:0/51
  • 2408:840d:1a53:4000:0:0:0:0/51
  • 2408:840d:1a53:6000:0:0:0:0/51
  • 2408:840d:1a53:8000:0:0:0:0/51
  • 2408:840d:1a53:a000:0:0:0:0/51
  • 2408:840d:1a53:c000:0:0:0:0/51
  • 2408:840d:1a53:e000:0:0:0:0/51
  • 2408:840d:1a54:0:0:0:0:0/51
  • 2408:840d:1a54:2000:0:0:0:0/51
  • 2408:840d:1a54:4000:0:0:0:0/51
  • 2408:840d:1a54:6000:0:0:0:0/51
  • 2408:840d:1a54:8000:0:0:0:0/51
  • 2408:840d:1a54:a000:0:0:0:0/51
  • 2408:840d:1a54:c000:0:0:0:0/51
  • 2408:840d:1a54:e000:0:0:0:0/51
  • 2408:840d:1a55:0:0:0:0:0/51
  • 2408:840d:1a55:2000:0:0:0:0/51
  • 2408:840d:1a55:4000:0:0:0:0/51
  • 2408:840d:1a55:6000:0:0:0:0/51
  • 2408:840d:1a55:8000:0:0:0:0/51
  • 2408:840d:1a55:a000:0:0:0:0/51
  • 2408:840d:1a55:c000:0:0:0:0/51
  • 2408:840d:1a55:e000:0:0:0:0/51
  • 2408:840d:1a56:0:0:0:0:0/51
  • 2408:840d:1a56:2000:0:0:0:0/51
  • 2408:840d:1a56:4000:0:0:0:0/51
  • 2408:840d:1a56:6000:0:0:0:0/51
  • 2408:840d:1a56:8000:0:0:0:0/51
  • 2408:840d:1a56:a000:0:0:0:0/51
  • 2408:840d:1a56:c000:0:0:0:0/51
  • 2408:840d:1a56:e000:0:0:0:0/51
  • 2408:840d:1a57:0:0:0:0:0/51
  • 2408:840d:1a57:2000:0:0:0:0/51
  • 2408:840d:1a57:4000:0:0:0:0/51
  • 2408:840d:1a57:6000:0:0:0:0/51
  • 2408:840d:1a57:8000:0:0:0:0/51
  • 2408:840d:1a57:a000:0:0:0:0/51
  • 2408:840d:1a57:c000:0:0:0:0/51
  • 2408:840d:1a57:e000:0:0:0:0/51
  • 2408:840d:1a58:0:0:0:0:0/51
  • 2408:840d:1a58:2000:0:0:0:0/51
  • 2408:840d:1a58:4000:0:0:0:0/51
  • 2408:840d:1a58:6000:0:0:0:0/51
  • 2408:840d:1a58:8000:0:0:0:0/51
  • 2408:840d:1a58:a000:0:0:0:0/51
  • 2408:840d:1a58:c000:0:0:0:0/51
  • 2408:840d:1a58:e000:0:0:0:0/51
  • 2408:840d:1a59:0:0:0:0:0/51
  • 2408:840d:1a59:2000:0:0:0:0/51
  • 2408:840d:1a59:4000:0:0:0:0/51
  • 2408:840d:1a59:6000:0:0:0:0/51
  • 2408:840d:1a59:8000:0:0:0:0/51
  • 2408:840d:1a59:a000:0:0:0:0/51
  • 2408:840d:1a59:c000:0:0:0:0/51
  • 2408:840d:1a59:e000:0:0:0:0/51
  • 2408:840d:1a5a:0:0:0:0:0/51
  • 2408:840d:1a5a:2000:0:0:0:0/51
  • 2408:840d:1a5a:4000:0:0:0:0/51
  • 2408:840d:1a5a:6000:0:0:0:0/51
  • 2408:840d:1a5a:8000:0:0:0:0/51
  • 2408:840d:1a5a:a000:0:0:0:0/51
  • 2408:840d:1a5a:c000:0:0:0:0/51
  • 2408:840d:1a5a:e000:0:0:0:0/51
  • 2408:840d:1a5b:0:0:0:0:0/51
  • 2408:840d:1a5b:2000:0:0:0:0/51
  • 2408:840d:1a5b:4000:0:0:0:0/51
  • 2408:840d:1a5b:6000:0:0:0:0/51
  • 2408:840d:1a5b:8000:0:0:0:0/51
  • 2408:840d:1a5b:a000:0:0:0:0/51
  • 2408:840d:1a5b:c000:0:0:0:0/51
  • 2408:840d:1a5b:e000:0:0:0:0/51
  • 2408:840d:1a5c:0:0:0:0:0/51
  • 2408:840d:1a5c:2000:0:0:0:0/51
  • 2408:840d:1a5c:4000:0:0:0:0/51
  • 2408:840d:1a5c:6000:0:0:0:0/51
  • 2408:840d:1a5c:8000:0:0:0:0/51
  • 2408:840d:1a5c:a000:0:0:0:0/51
  • 2408:840d:1a5c:c000:0:0:0:0/51
  • 2408:840d:1a5c:e000:0:0:0:0/51
  • 2408:840d:1a5d:0:0:0:0:0/51
  • 2408:840d:1a5d:2000:0:0:0:0/51
  • 2408:840d:1a5d:4000:0:0:0:0/51
  • 2408:840d:1a5d:6000:0:0:0:0/51
  • 2408:840d:1a5d:8000:0:0:0:0/51
  • 2408:840d:1a5d:a000:0:0:0:0/51
  • 2408:840d:1a5d:c000:0:0:0:0/51
  • 2408:840d:1a5d:e000:0:0:0:0/51
  • 2408:840d:1a5e:0:0:0:0:0/51
  • 2408:840d:1a5e:2000:0:0:0:0/51
  • 2408:840d:1a5e:4000:0:0:0:0/51
  • 2408:840d:1a5e:6000:0:0:0:0/51
  • 2408:840d:1a5e:8000:0:0:0:0/51
  • 2408:840d:1a5e:a000:0:0:0:0/51
  • 2408:840d:1a5e:c000:0:0:0:0/51
  • 2408:840d:1a5e:e000:0:0:0:0/51
  • 2408:840d:1a5f:0:0:0:0:0/51
  • 2408:840d:1a5f:2000:0:0:0:0/51
  • 2408:840d:1a5f:4000:0:0:0:0/51
  • 2408:840d:1a5f:6000:0:0:0:0/51
  • 2408:840d:1a5f:8000:0:0:0:0/51
  • 2408:840d:1a5f:a000:0:0:0:0/51
  • 2408:840d:1a5f:c000:0:0:0:0/51
  • 2408:840d:1a5f:e000:0:0:0:0/51

Get started with 100,000 free lookups: sign up