IP subnet details

2408:840d:8240::/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:8240::/43 subnet

  • 2408:840d:8240:0:0:0:0:0/51
  • 2408:840d:8240:2000:0:0:0:0/51
  • 2408:840d:8240:4000:0:0:0:0/51
  • 2408:840d:8240:6000:0:0:0:0/51
  • 2408:840d:8240:8000:0:0:0:0/51
  • 2408:840d:8240:a000:0:0:0:0/51
  • 2408:840d:8240:c000:0:0:0:0/51
  • 2408:840d:8240:e000:0:0:0:0/51
  • 2408:840d:8241:0:0:0:0:0/51
  • 2408:840d:8241:2000:0:0:0:0/51
  • 2408:840d:8241:4000:0:0:0:0/51
  • 2408:840d:8241:6000:0:0:0:0/51
  • 2408:840d:8241:8000:0:0:0:0/51
  • 2408:840d:8241:a000:0:0:0:0/51
  • 2408:840d:8241:c000:0:0:0:0/51
  • 2408:840d:8241:e000:0:0:0:0/51
  • 2408:840d:8242:0:0:0:0:0/51
  • 2408:840d:8242:2000:0:0:0:0/51
  • 2408:840d:8242:4000:0:0:0:0/51
  • 2408:840d:8242:6000:0:0:0:0/51
  • 2408:840d:8242:8000:0:0:0:0/51
  • 2408:840d:8242:a000:0:0:0:0/51
  • 2408:840d:8242:c000:0:0:0:0/51
  • 2408:840d:8242:e000:0:0:0:0/51
  • 2408:840d:8243:0:0:0:0:0/51
  • 2408:840d:8243:2000:0:0:0:0/51
  • 2408:840d:8243:4000:0:0:0:0/51
  • 2408:840d:8243:6000:0:0:0:0/51
  • 2408:840d:8243:8000:0:0:0:0/51
  • 2408:840d:8243:a000:0:0:0:0/51
  • 2408:840d:8243:c000:0:0:0:0/51
  • 2408:840d:8243:e000:0:0:0:0/51
  • 2408:840d:8244:0:0:0:0:0/51
  • 2408:840d:8244:2000:0:0:0:0/51
  • 2408:840d:8244:4000:0:0:0:0/51
  • 2408:840d:8244:6000:0:0:0:0/51
  • 2408:840d:8244:8000:0:0:0:0/51
  • 2408:840d:8244:a000:0:0:0:0/51
  • 2408:840d:8244:c000:0:0:0:0/51
  • 2408:840d:8244:e000:0:0:0:0/51
  • 2408:840d:8245:0:0:0:0:0/51
  • 2408:840d:8245:2000:0:0:0:0/51
  • 2408:840d:8245:4000:0:0:0:0/51
  • 2408:840d:8245:6000:0:0:0:0/51
  • 2408:840d:8245:8000:0:0:0:0/51
  • 2408:840d:8245:a000:0:0:0:0/51
  • 2408:840d:8245:c000:0:0:0:0/51
  • 2408:840d:8245:e000:0:0:0:0/51
  • 2408:840d:8246:0:0:0:0:0/51
  • 2408:840d:8246:2000:0:0:0:0/51
  • 2408:840d:8246:4000:0:0:0:0/51
  • 2408:840d:8246:6000:0:0:0:0/51
  • 2408:840d:8246:8000:0:0:0:0/51
  • 2408:840d:8246:a000:0:0:0:0/51
  • 2408:840d:8246:c000:0:0:0:0/51
  • 2408:840d:8246:e000:0:0:0:0/51
  • 2408:840d:8247:0:0:0:0:0/51
  • 2408:840d:8247:2000:0:0:0:0/51
  • 2408:840d:8247:4000:0:0:0:0/51
  • 2408:840d:8247:6000:0:0:0:0/51
  • 2408:840d:8247:8000:0:0:0:0/51
  • 2408:840d:8247:a000:0:0:0:0/51
  • 2408:840d:8247:c000:0:0:0:0/51
  • 2408:840d:8247:e000:0:0:0:0/51
  • 2408:840d:8248:0:0:0:0:0/51
  • 2408:840d:8248:2000:0:0:0:0/51
  • 2408:840d:8248:4000:0:0:0:0/51
  • 2408:840d:8248:6000:0:0:0:0/51
  • 2408:840d:8248:8000:0:0:0:0/51
  • 2408:840d:8248:a000:0:0:0:0/51
  • 2408:840d:8248:c000:0:0:0:0/51
  • 2408:840d:8248:e000:0:0:0:0/51
  • 2408:840d:8249:0:0:0:0:0/51
  • 2408:840d:8249:2000:0:0:0:0/51
  • 2408:840d:8249:4000:0:0:0:0/51
  • 2408:840d:8249:6000:0:0:0:0/51
  • 2408:840d:8249:8000:0:0:0:0/51
  • 2408:840d:8249:a000:0:0:0:0/51
  • 2408:840d:8249:c000:0:0:0:0/51
  • 2408:840d:8249:e000:0:0:0:0/51
  • 2408:840d:824a:0:0:0:0:0/51
  • 2408:840d:824a:2000:0:0:0:0/51
  • 2408:840d:824a:4000:0:0:0:0/51
  • 2408:840d:824a:6000:0:0:0:0/51
  • 2408:840d:824a:8000:0:0:0:0/51
  • 2408:840d:824a:a000:0:0:0:0/51
  • 2408:840d:824a:c000:0:0:0:0/51
  • 2408:840d:824a:e000:0:0:0:0/51
  • 2408:840d:824b:0:0:0:0:0/51
  • 2408:840d:824b:2000:0:0:0:0/51
  • 2408:840d:824b:4000:0:0:0:0/51
  • 2408:840d:824b:6000:0:0:0:0/51
  • 2408:840d:824b:8000:0:0:0:0/51
  • 2408:840d:824b:a000:0:0:0:0/51
  • 2408:840d:824b:c000:0:0:0:0/51
  • 2408:840d:824b:e000:0:0:0:0/51
  • 2408:840d:824c:0:0:0:0:0/51
  • 2408:840d:824c:2000:0:0:0:0/51
  • 2408:840d:824c:4000:0:0:0:0/51
  • 2408:840d:824c:6000:0:0:0:0/51
  • 2408:840d:824c:8000:0:0:0:0/51
  • 2408:840d:824c:a000:0:0:0:0/51
  • 2408:840d:824c:c000:0:0:0:0/51
  • 2408:840d:824c:e000:0:0:0:0/51
  • 2408:840d:824d:0:0:0:0:0/51
  • 2408:840d:824d:2000:0:0:0:0/51
  • 2408:840d:824d:4000:0:0:0:0/51
  • 2408:840d:824d:6000:0:0:0:0/51
  • 2408:840d:824d:8000:0:0:0:0/51
  • 2408:840d:824d:a000:0:0:0:0/51
  • 2408:840d:824d:c000:0:0:0:0/51
  • 2408:840d:824d:e000:0:0:0:0/51
  • 2408:840d:824e:0:0:0:0:0/51
  • 2408:840d:824e:2000:0:0:0:0/51
  • 2408:840d:824e:4000:0:0:0:0/51
  • 2408:840d:824e:6000:0:0:0:0/51
  • 2408:840d:824e:8000:0:0:0:0/51
  • 2408:840d:824e:a000:0:0:0:0/51
  • 2408:840d:824e:c000:0:0:0:0/51
  • 2408:840d:824e:e000:0:0:0:0/51
  • 2408:840d:824f:0:0:0:0:0/51
  • 2408:840d:824f:2000:0:0:0:0/51
  • 2408:840d:824f:4000:0:0:0:0/51
  • 2408:840d:824f:6000:0:0:0:0/51
  • 2408:840d:824f:8000:0:0:0:0/51
  • 2408:840d:824f:a000:0:0:0:0/51
  • 2408:840d:824f:c000:0:0:0:0/51
  • 2408:840d:824f:e000:0:0:0:0/51
  • 2408:840d:8250:0:0:0:0:0/51
  • 2408:840d:8250:2000:0:0:0:0/51
  • 2408:840d:8250:4000:0:0:0:0/51
  • 2408:840d:8250:6000:0:0:0:0/51
  • 2408:840d:8250:8000:0:0:0:0/51
  • 2408:840d:8250:a000:0:0:0:0/51
  • 2408:840d:8250:c000:0:0:0:0/51
  • 2408:840d:8250:e000:0:0:0:0/51
  • 2408:840d:8251:0:0:0:0:0/51
  • 2408:840d:8251:2000:0:0:0:0/51
  • 2408:840d:8251:4000:0:0:0:0/51
  • 2408:840d:8251:6000:0:0:0:0/51
  • 2408:840d:8251:8000:0:0:0:0/51
  • 2408:840d:8251:a000:0:0:0:0/51
  • 2408:840d:8251:c000:0:0:0:0/51
  • 2408:840d:8251:e000:0:0:0:0/51
  • 2408:840d:8252:0:0:0:0:0/51
  • 2408:840d:8252:2000:0:0:0:0/51
  • 2408:840d:8252:4000:0:0:0:0/51
  • 2408:840d:8252:6000:0:0:0:0/51
  • 2408:840d:8252:8000:0:0:0:0/51
  • 2408:840d:8252:a000:0:0:0:0/51
  • 2408:840d:8252:c000:0:0:0:0/51
  • 2408:840d:8252:e000:0:0:0:0/51
  • 2408:840d:8253:0:0:0:0:0/51
  • 2408:840d:8253:2000:0:0:0:0/51
  • 2408:840d:8253:4000:0:0:0:0/51
  • 2408:840d:8253:6000:0:0:0:0/51
  • 2408:840d:8253:8000:0:0:0:0/51
  • 2408:840d:8253:a000:0:0:0:0/51
  • 2408:840d:8253:c000:0:0:0:0/51
  • 2408:840d:8253:e000:0:0:0:0/51
  • 2408:840d:8254:0:0:0:0:0/51
  • 2408:840d:8254:2000:0:0:0:0/51
  • 2408:840d:8254:4000:0:0:0:0/51
  • 2408:840d:8254:6000:0:0:0:0/51
  • 2408:840d:8254:8000:0:0:0:0/51
  • 2408:840d:8254:a000:0:0:0:0/51
  • 2408:840d:8254:c000:0:0:0:0/51
  • 2408:840d:8254:e000:0:0:0:0/51
  • 2408:840d:8255:0:0:0:0:0/51
  • 2408:840d:8255:2000:0:0:0:0/51
  • 2408:840d:8255:4000:0:0:0:0/51
  • 2408:840d:8255:6000:0:0:0:0/51
  • 2408:840d:8255:8000:0:0:0:0/51
  • 2408:840d:8255:a000:0:0:0:0/51
  • 2408:840d:8255:c000:0:0:0:0/51
  • 2408:840d:8255:e000:0:0:0:0/51
  • 2408:840d:8256:0:0:0:0:0/51
  • 2408:840d:8256:2000:0:0:0:0/51
  • 2408:840d:8256:4000:0:0:0:0/51
  • 2408:840d:8256:6000:0:0:0:0/51
  • 2408:840d:8256:8000:0:0:0:0/51
  • 2408:840d:8256:a000:0:0:0:0/51
  • 2408:840d:8256:c000:0:0:0:0/51
  • 2408:840d:8256:e000:0:0:0:0/51
  • 2408:840d:8257:0:0:0:0:0/51
  • 2408:840d:8257:2000:0:0:0:0/51
  • 2408:840d:8257:4000:0:0:0:0/51
  • 2408:840d:8257:6000:0:0:0:0/51
  • 2408:840d:8257:8000:0:0:0:0/51
  • 2408:840d:8257:a000:0:0:0:0/51
  • 2408:840d:8257:c000:0:0:0:0/51
  • 2408:840d:8257:e000:0:0:0:0/51
  • 2408:840d:8258:0:0:0:0:0/51
  • 2408:840d:8258:2000:0:0:0:0/51
  • 2408:840d:8258:4000:0:0:0:0/51
  • 2408:840d:8258:6000:0:0:0:0/51
  • 2408:840d:8258:8000:0:0:0:0/51
  • 2408:840d:8258:a000:0:0:0:0/51
  • 2408:840d:8258:c000:0:0:0:0/51
  • 2408:840d:8258:e000:0:0:0:0/51
  • 2408:840d:8259:0:0:0:0:0/51
  • 2408:840d:8259:2000:0:0:0:0/51
  • 2408:840d:8259:4000:0:0:0:0/51
  • 2408:840d:8259:6000:0:0:0:0/51
  • 2408:840d:8259:8000:0:0:0:0/51
  • 2408:840d:8259:a000:0:0:0:0/51
  • 2408:840d:8259:c000:0:0:0:0/51
  • 2408:840d:8259:e000:0:0:0:0/51
  • 2408:840d:825a:0:0:0:0:0/51
  • 2408:840d:825a:2000:0:0:0:0/51
  • 2408:840d:825a:4000:0:0:0:0/51
  • 2408:840d:825a:6000:0:0:0:0/51
  • 2408:840d:825a:8000:0:0:0:0/51
  • 2408:840d:825a:a000:0:0:0:0/51
  • 2408:840d:825a:c000:0:0:0:0/51
  • 2408:840d:825a:e000:0:0:0:0/51
  • 2408:840d:825b:0:0:0:0:0/51
  • 2408:840d:825b:2000:0:0:0:0/51
  • 2408:840d:825b:4000:0:0:0:0/51
  • 2408:840d:825b:6000:0:0:0:0/51
  • 2408:840d:825b:8000:0:0:0:0/51
  • 2408:840d:825b:a000:0:0:0:0/51
  • 2408:840d:825b:c000:0:0:0:0/51
  • 2408:840d:825b:e000:0:0:0:0/51
  • 2408:840d:825c:0:0:0:0:0/51
  • 2408:840d:825c:2000:0:0:0:0/51
  • 2408:840d:825c:4000:0:0:0:0/51
  • 2408:840d:825c:6000:0:0:0:0/51
  • 2408:840d:825c:8000:0:0:0:0/51
  • 2408:840d:825c:a000:0:0:0:0/51
  • 2408:840d:825c:c000:0:0:0:0/51
  • 2408:840d:825c:e000:0:0:0:0/51
  • 2408:840d:825d:0:0:0:0:0/51
  • 2408:840d:825d:2000:0:0:0:0/51
  • 2408:840d:825d:4000:0:0:0:0/51
  • 2408:840d:825d:6000:0:0:0:0/51
  • 2408:840d:825d:8000:0:0:0:0/51
  • 2408:840d:825d:a000:0:0:0:0/51
  • 2408:840d:825d:c000:0:0:0:0/51
  • 2408:840d:825d:e000:0:0:0:0/51
  • 2408:840d:825e:0:0:0:0:0/51
  • 2408:840d:825e:2000:0:0:0:0/51
  • 2408:840d:825e:4000:0:0:0:0/51
  • 2408:840d:825e:6000:0:0:0:0/51
  • 2408:840d:825e:8000:0:0:0:0/51
  • 2408:840d:825e:a000:0:0:0:0/51
  • 2408:840d:825e:c000:0:0:0:0/51
  • 2408:840d:825e:e000:0:0:0:0/51
  • 2408:840d:825f:0:0:0:0:0/51
  • 2408:840d:825f:2000:0:0:0:0/51
  • 2408:840d:825f:4000:0:0:0:0/51
  • 2408:840d:825f:6000:0:0:0:0/51
  • 2408:840d:825f:8000:0:0:0:0/51
  • 2408:840d:825f:a000:0:0:0:0/51
  • 2408:840d:825f:c000:0:0:0:0/51
  • 2408:840d:825f:e000:0:0:0:0/51

Get started with 100,000 free lookups: sign up