IP subnet details

240c:ca49:8000::/33

AS4538  — China Education And Research Network Center

Summary

Country
CN China
Domain cernic.net
Size 39,614,081,257,132,170,000,000,000,000
Registry APNIC
Network Name CERNET

Whois

inet6num: 240c:c000::/20
netname: CERNET
descr: China Education and Research Network
descr: Tsinghua University
country: CN
org: ORG-CEAR1-AP
admin-c: CER-AP
tech-c: CER-AP
abuse-c: AC1685-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-CERNET-AP
mnt-routes: MAINT-CERNET-AP
mnt-irt: IRT-CERNET-AP
last-modified: 2023-08-28T06:40:49Z
source: APNIC

irt: IRT-CERNET-AP
address: Network Research Center,
address: Main Bldg, Tsinghua Univ
address: Beijing 100084, China
phone: +86-10-62784301
fax-no: +86-10-62785933
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: CER-AP
tech-c: CER-AP
auth: # Filtered
remarks: timezone GMT+8
remarks: http://www.ccert.edu.cn
remarks: [email protected] was validated on 2025-08-15
mnt-by: MAINT-CERNET-AP
last-modified: 2025-11-18T00:26:28Z
source: APNIC

organisation: ORG-CEAR1-AP
org-name: China Education and Research Network (CERNET)
country: CN
address: FIT 3-220,
address: Tsinghua University
phone: +86-10-62785983
fax-no: +86-10-62785933
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2018-09-13T12:56:34Z
source: APNIC

role: ABUSE CERNETAP
country: ZZ
address: Network Research Center,
address: Main Bldg, Tsinghua Univ
address: Beijing 100084, China
phone: +86-10-62784301
e-mail: [email protected]
admin-c: CER-AP
tech-c: CER-AP
nic-hdl: AC1685-AP
remarks: Generated from irt object IRT-CERNET-AP
remarks: [email protected] was validated on 2025-08-15
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-08-15T09:38:28Z
source: APNIC

role: CERNET Helpdesk
address: CERNET Center
address: Beijing 100084, China
country: CN
phone: +86-10-6278-4049
fax-no: +86-10-6278-5933
e-mail: [email protected]
remarks: [email protected]
admin-c: XL1-CN
tech-c: SZ2-AP
nic-hdl: CER-AP
mnt-by: MAINT-CERNET-AP
last-modified: 2020-09-03T09:14:12Z
source: APNIC

route6: 240c:c000::/20
descr: CERNET
origin: AS23910
mnt-by: MAINT-CERNET-AP
last-modified: 2020-08-31T01:22:02Z
source: APNIC

CIDR IP address subranges within 240c:ca49:8000::/33 subnet

  • 240c:ca49:8000:0:0:0:0:0/41
  • 240c:ca49:8080:0:0:0:0:0/41
  • 240c:ca49:8100:0:0:0:0:0/41
  • 240c:ca49:8180:0:0:0:0:0/41
  • 240c:ca49:8200:0:0:0:0:0/41
  • 240c:ca49:8280:0:0:0:0:0/41
  • 240c:ca49:8300:0:0:0:0:0/41
  • 240c:ca49:8380:0:0:0:0:0/41
  • 240c:ca49:8400:0:0:0:0:0/41
  • 240c:ca49:8480:0:0:0:0:0/41
  • 240c:ca49:8500:0:0:0:0:0/41
  • 240c:ca49:8580:0:0:0:0:0/41
  • 240c:ca49:8600:0:0:0:0:0/41
  • 240c:ca49:8680:0:0:0:0:0/41
  • 240c:ca49:8700:0:0:0:0:0/41
  • 240c:ca49:8780:0:0:0:0:0/41
  • 240c:ca49:8800:0:0:0:0:0/41
  • 240c:ca49:8880:0:0:0:0:0/41
  • 240c:ca49:8900:0:0:0:0:0/41
  • 240c:ca49:8980:0:0:0:0:0/41
  • 240c:ca49:8a00:0:0:0:0:0/41
  • 240c:ca49:8a80:0:0:0:0:0/41
  • 240c:ca49:8b00:0:0:0:0:0/41
  • 240c:ca49:8b80:0:0:0:0:0/41
  • 240c:ca49:8c00:0:0:0:0:0/41
  • 240c:ca49:8c80:0:0:0:0:0/41
  • 240c:ca49:8d00:0:0:0:0:0/41
  • 240c:ca49:8d80:0:0:0:0:0/41
  • 240c:ca49:8e00:0:0:0:0:0/41
  • 240c:ca49:8e80:0:0:0:0:0/41
  • 240c:ca49:8f00:0:0:0:0:0/41
  • 240c:ca49:8f80:0:0:0:0:0/41
  • 240c:ca49:9000:0:0:0:0:0/41
  • 240c:ca49:9080:0:0:0:0:0/41
  • 240c:ca49:9100:0:0:0:0:0/41
  • 240c:ca49:9180:0:0:0:0:0/41
  • 240c:ca49:9200:0:0:0:0:0/41
  • 240c:ca49:9280:0:0:0:0:0/41
  • 240c:ca49:9300:0:0:0:0:0/41
  • 240c:ca49:9380:0:0:0:0:0/41
  • 240c:ca49:9400:0:0:0:0:0/41
  • 240c:ca49:9480:0:0:0:0:0/41
  • 240c:ca49:9500:0:0:0:0:0/41
  • 240c:ca49:9580:0:0:0:0:0/41
  • 240c:ca49:9600:0:0:0:0:0/41
  • 240c:ca49:9680:0:0:0:0:0/41
  • 240c:ca49:9700:0:0:0:0:0/41
  • 240c:ca49:9780:0:0:0:0:0/41
  • 240c:ca49:9800:0:0:0:0:0/41
  • 240c:ca49:9880:0:0:0:0:0/41
  • 240c:ca49:9900:0:0:0:0:0/41
  • 240c:ca49:9980:0:0:0:0:0/41
  • 240c:ca49:9a00:0:0:0:0:0/41
  • 240c:ca49:9a80:0:0:0:0:0/41
  • 240c:ca49:9b00:0:0:0:0:0/41
  • 240c:ca49:9b80:0:0:0:0:0/41
  • 240c:ca49:9c00:0:0:0:0:0/41
  • 240c:ca49:9c80:0:0:0:0:0/41
  • 240c:ca49:9d00:0:0:0:0:0/41
  • 240c:ca49:9d80:0:0:0:0:0/41
  • 240c:ca49:9e00:0:0:0:0:0/41
  • 240c:ca49:9e80:0:0:0:0:0/41
  • 240c:ca49:9f00:0:0:0:0:0/41
  • 240c:ca49:9f80:0:0:0:0:0/41
  • 240c:ca49:a000:0:0:0:0:0/41
  • 240c:ca49:a080:0:0:0:0:0/41
  • 240c:ca49:a100:0:0:0:0:0/41
  • 240c:ca49:a180:0:0:0:0:0/41
  • 240c:ca49:a200:0:0:0:0:0/41
  • 240c:ca49:a280:0:0:0:0:0/41
  • 240c:ca49:a300:0:0:0:0:0/41
  • 240c:ca49:a380:0:0:0:0:0/41
  • 240c:ca49:a400:0:0:0:0:0/41
  • 240c:ca49:a480:0:0:0:0:0/41
  • 240c:ca49:a500:0:0:0:0:0/41
  • 240c:ca49:a580:0:0:0:0:0/41
  • 240c:ca49:a600:0:0:0:0:0/41
  • 240c:ca49:a680:0:0:0:0:0/41
  • 240c:ca49:a700:0:0:0:0:0/41
  • 240c:ca49:a780:0:0:0:0:0/41
  • 240c:ca49:a800:0:0:0:0:0/41
  • 240c:ca49:a880:0:0:0:0:0/41
  • 240c:ca49:a900:0:0:0:0:0/41
  • 240c:ca49:a980:0:0:0:0:0/41
  • 240c:ca49:aa00:0:0:0:0:0/41
  • 240c:ca49:aa80:0:0:0:0:0/41
  • 240c:ca49:ab00:0:0:0:0:0/41
  • 240c:ca49:ab80:0:0:0:0:0/41
  • 240c:ca49:ac00:0:0:0:0:0/41
  • 240c:ca49:ac80:0:0:0:0:0/41
  • 240c:ca49:ad00:0:0:0:0:0/41
  • 240c:ca49:ad80:0:0:0:0:0/41
  • 240c:ca49:ae00:0:0:0:0:0/41
  • 240c:ca49:ae80:0:0:0:0:0/41
  • 240c:ca49:af00:0:0:0:0:0/41
  • 240c:ca49:af80:0:0:0:0:0/41
  • 240c:ca49:b000:0:0:0:0:0/41
  • 240c:ca49:b080:0:0:0:0:0/41
  • 240c:ca49:b100:0:0:0:0:0/41
  • 240c:ca49:b180:0:0:0:0:0/41
  • 240c:ca49:b200:0:0:0:0:0/41
  • 240c:ca49:b280:0:0:0:0:0/41
  • 240c:ca49:b300:0:0:0:0:0/41
  • 240c:ca49:b380:0:0:0:0:0/41
  • 240c:ca49:b400:0:0:0:0:0/41
  • 240c:ca49:b480:0:0:0:0:0/41
  • 240c:ca49:b500:0:0:0:0:0/41
  • 240c:ca49:b580:0:0:0:0:0/41
  • 240c:ca49:b600:0:0:0:0:0/41
  • 240c:ca49:b680:0:0:0:0:0/41
  • 240c:ca49:b700:0:0:0:0:0/41
  • 240c:ca49:b780:0:0:0:0:0/41
  • 240c:ca49:b800:0:0:0:0:0/41
  • 240c:ca49:b880:0:0:0:0:0/41
  • 240c:ca49:b900:0:0:0:0:0/41
  • 240c:ca49:b980:0:0:0:0:0/41
  • 240c:ca49:ba00:0:0:0:0:0/41
  • 240c:ca49:ba80:0:0:0:0:0/41
  • 240c:ca49:bb00:0:0:0:0:0/41
  • 240c:ca49:bb80:0:0:0:0:0/41
  • 240c:ca49:bc00:0:0:0:0:0/41
  • 240c:ca49:bc80:0:0:0:0:0/41
  • 240c:ca49:bd00:0:0:0:0:0/41
  • 240c:ca49:bd80:0:0:0:0:0/41
  • 240c:ca49:be00:0:0:0:0:0/41
  • 240c:ca49:be80:0:0:0:0:0/41
  • 240c:ca49:bf00:0:0:0:0:0/41
  • 240c:ca49:bf80:0:0:0:0:0/41
  • 240c:ca49:c000:0:0:0:0:0/41
  • 240c:ca49:c080:0:0:0:0:0/41
  • 240c:ca49:c100:0:0:0:0:0/41
  • 240c:ca49:c180:0:0:0:0:0/41
  • 240c:ca49:c200:0:0:0:0:0/41
  • 240c:ca49:c280:0:0:0:0:0/41
  • 240c:ca49:c300:0:0:0:0:0/41
  • 240c:ca49:c380:0:0:0:0:0/41
  • 240c:ca49:c400:0:0:0:0:0/41
  • 240c:ca49:c480:0:0:0:0:0/41
  • 240c:ca49:c500:0:0:0:0:0/41
  • 240c:ca49:c580:0:0:0:0:0/41
  • 240c:ca49:c600:0:0:0:0:0/41
  • 240c:ca49:c680:0:0:0:0:0/41
  • 240c:ca49:c700:0:0:0:0:0/41
  • 240c:ca49:c780:0:0:0:0:0/41
  • 240c:ca49:c800:0:0:0:0:0/41
  • 240c:ca49:c880:0:0:0:0:0/41
  • 240c:ca49:c900:0:0:0:0:0/41
  • 240c:ca49:c980:0:0:0:0:0/41
  • 240c:ca49:ca00:0:0:0:0:0/41
  • 240c:ca49:ca80:0:0:0:0:0/41
  • 240c:ca49:cb00:0:0:0:0:0/41
  • 240c:ca49:cb80:0:0:0:0:0/41
  • 240c:ca49:cc00:0:0:0:0:0/41
  • 240c:ca49:cc80:0:0:0:0:0/41
  • 240c:ca49:cd00:0:0:0:0:0/41
  • 240c:ca49:cd80:0:0:0:0:0/41
  • 240c:ca49:ce00:0:0:0:0:0/41
  • 240c:ca49:ce80:0:0:0:0:0/41
  • 240c:ca49:cf00:0:0:0:0:0/41
  • 240c:ca49:cf80:0:0:0:0:0/41
  • 240c:ca49:d000:0:0:0:0:0/41
  • 240c:ca49:d080:0:0:0:0:0/41
  • 240c:ca49:d100:0:0:0:0:0/41
  • 240c:ca49:d180:0:0:0:0:0/41
  • 240c:ca49:d200:0:0:0:0:0/41
  • 240c:ca49:d280:0:0:0:0:0/41
  • 240c:ca49:d300:0:0:0:0:0/41
  • 240c:ca49:d380:0:0:0:0:0/41
  • 240c:ca49:d400:0:0:0:0:0/41
  • 240c:ca49:d480:0:0:0:0:0/41
  • 240c:ca49:d500:0:0:0:0:0/41
  • 240c:ca49:d580:0:0:0:0:0/41
  • 240c:ca49:d600:0:0:0:0:0/41
  • 240c:ca49:d680:0:0:0:0:0/41
  • 240c:ca49:d700:0:0:0:0:0/41
  • 240c:ca49:d780:0:0:0:0:0/41
  • 240c:ca49:d800:0:0:0:0:0/41
  • 240c:ca49:d880:0:0:0:0:0/41
  • 240c:ca49:d900:0:0:0:0:0/41
  • 240c:ca49:d980:0:0:0:0:0/41
  • 240c:ca49:da00:0:0:0:0:0/41
  • 240c:ca49:da80:0:0:0:0:0/41
  • 240c:ca49:db00:0:0:0:0:0/41
  • 240c:ca49:db80:0:0:0:0:0/41
  • 240c:ca49:dc00:0:0:0:0:0/41
  • 240c:ca49:dc80:0:0:0:0:0/41
  • 240c:ca49:dd00:0:0:0:0:0/41
  • 240c:ca49:dd80:0:0:0:0:0/41
  • 240c:ca49:de00:0:0:0:0:0/41
  • 240c:ca49:de80:0:0:0:0:0/41
  • 240c:ca49:df00:0:0:0:0:0/41
  • 240c:ca49:df80:0:0:0:0:0/41
  • 240c:ca49:e000:0:0:0:0:0/41
  • 240c:ca49:e080:0:0:0:0:0/41
  • 240c:ca49:e100:0:0:0:0:0/41
  • 240c:ca49:e180:0:0:0:0:0/41
  • 240c:ca49:e200:0:0:0:0:0/41
  • 240c:ca49:e280:0:0:0:0:0/41
  • 240c:ca49:e300:0:0:0:0:0/41
  • 240c:ca49:e380:0:0:0:0:0/41
  • 240c:ca49:e400:0:0:0:0:0/41
  • 240c:ca49:e480:0:0:0:0:0/41
  • 240c:ca49:e500:0:0:0:0:0/41
  • 240c:ca49:e580:0:0:0:0:0/41
  • 240c:ca49:e600:0:0:0:0:0/41
  • 240c:ca49:e680:0:0:0:0:0/41
  • 240c:ca49:e700:0:0:0:0:0/41
  • 240c:ca49:e780:0:0:0:0:0/41
  • 240c:ca49:e800:0:0:0:0:0/41
  • 240c:ca49:e880:0:0:0:0:0/41
  • 240c:ca49:e900:0:0:0:0:0/41
  • 240c:ca49:e980:0:0:0:0:0/41
  • 240c:ca49:ea00:0:0:0:0:0/41
  • 240c:ca49:ea80:0:0:0:0:0/41
  • 240c:ca49:eb00:0:0:0:0:0/41
  • 240c:ca49:eb80:0:0:0:0:0/41
  • 240c:ca49:ec00:0:0:0:0:0/41
  • 240c:ca49:ec80:0:0:0:0:0/41
  • 240c:ca49:ed00:0:0:0:0:0/41
  • 240c:ca49:ed80:0:0:0:0:0/41
  • 240c:ca49:ee00:0:0:0:0:0/41
  • 240c:ca49:ee80:0:0:0:0:0/41
  • 240c:ca49:ef00:0:0:0:0:0/41
  • 240c:ca49:ef80:0:0:0:0:0/41
  • 240c:ca49:f000:0:0:0:0:0/41
  • 240c:ca49:f080:0:0:0:0:0/41
  • 240c:ca49:f100:0:0:0:0:0/41
  • 240c:ca49:f180:0:0:0:0:0/41
  • 240c:ca49:f200:0:0:0:0:0/41
  • 240c:ca49:f280:0:0:0:0:0/41
  • 240c:ca49:f300:0:0:0:0:0/41
  • 240c:ca49:f380:0:0:0:0:0/41
  • 240c:ca49:f400:0:0:0:0:0/41
  • 240c:ca49:f480:0:0:0:0:0/41
  • 240c:ca49:f500:0:0:0:0:0/41
  • 240c:ca49:f580:0:0:0:0:0/41
  • 240c:ca49:f600:0:0:0:0:0/41
  • 240c:ca49:f680:0:0:0:0:0/41
  • 240c:ca49:f700:0:0:0:0:0/41
  • 240c:ca49:f780:0:0:0:0:0/41
  • 240c:ca49:f800:0:0:0:0:0/41
  • 240c:ca49:f880:0:0:0:0:0/41
  • 240c:ca49:f900:0:0:0:0:0/41
  • 240c:ca49:f980:0:0:0:0:0/41
  • 240c:ca49:fa00:0:0:0:0:0/41
  • 240c:ca49:fa80:0:0:0:0:0/41
  • 240c:ca49:fb00:0:0:0:0:0/41
  • 240c:ca49:fb80:0:0:0:0:0/41
  • 240c:ca49:fc00:0:0:0:0:0/41
  • 240c:ca49:fc80:0:0:0:0:0/41
  • 240c:ca49:fd00:0:0:0:0:0/41
  • 240c:ca49:fd80:0:0:0:0:0/41
  • 240c:ca49:fe00:0:0:0:0:0/41
  • 240c:ca49:fe80:0:0:0:0:0/41
  • 240c:ca49:ff00:0:0:0:0:0/41
  • 240c:ca49:ff80:0:0:0:0:0/41

Get started with 100,000 free lookups: sign up