Summary
| Country |  China | 
| Domain | cernet.edu.cn | 
| Size | 1,208,925,819,614,629,200,000,000 | 
| Registry | APNIC | 
| Network Name | CERNET-CN-20000426 | 
Whois
inet6num:       2001:250::/32
netname:        CERNET-CN-20000426
descr:          CERNET IPv6 Backbone
country:        CN
admin-c:        WJ67-AP
tech-c:         LX58-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
notify:         [email protected]
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:55:16Z
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:  2025-09-04T00:59:41Z
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
person:         Li Xing
address:        China Education and Research Network
address:        China Education and Research Network Center
address:        Tsinghua University
address:        Beijing, 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
nic-hdl:        LX58-AP
notify:         [email protected]
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:50Z
source:         APNIC
person:         Wu Jianping
address:        China Education and Research Network
address:        China Education and Research Network Center
address:        Tsinghua University
address:        Beijing, 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
nic-hdl:        WJ67-AP
notify:         [email protected]
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:50Z
source:         APNICCIDR IP address subranges within 2001:250:5889::/48 subnet
- 2001:250:5889:0:0:0:0:0/56
- 2001:250:5889:100:0:0:0:0/56
- 2001:250:5889:200:0:0:0:0/56
- 2001:250:5889:300:0:0:0:0/56
- 2001:250:5889:400:0:0:0:0/56
- 2001:250:5889:500:0:0:0:0/56
- 2001:250:5889:600:0:0:0:0/56
- 2001:250:5889:700:0:0:0:0/56
- 2001:250:5889:800:0:0:0:0/56
- 2001:250:5889:900:0:0:0:0/56
- 2001:250:5889:a00:0:0:0:0/56
- 2001:250:5889:b00:0:0:0:0/56
- 2001:250:5889:c00:0:0:0:0/56
- 2001:250:5889:d00:0:0:0:0/56
- 2001:250:5889:e00:0:0:0:0/56
- 2001:250:5889:f00:0:0:0:0/56
- 2001:250:5889:1000:0:0:0:0/56
- 2001:250:5889:1100:0:0:0:0/56
- 2001:250:5889:1200:0:0:0:0/56
- 2001:250:5889:1300:0:0:0:0/56
- 2001:250:5889:1400:0:0:0:0/56
- 2001:250:5889:1500:0:0:0:0/56
- 2001:250:5889:1600:0:0:0:0/56
- 2001:250:5889:1700:0:0:0:0/56
- 2001:250:5889:1800:0:0:0:0/56
- 2001:250:5889:1900:0:0:0:0/56
- 2001:250:5889:1a00:0:0:0:0/56
- 2001:250:5889:1b00:0:0:0:0/56
- 2001:250:5889:1c00:0:0:0:0/56
- 2001:250:5889:1d00:0:0:0:0/56
- 2001:250:5889:1e00:0:0:0:0/56
- 2001:250:5889:1f00:0:0:0:0/56
- 2001:250:5889:2000:0:0:0:0/56
- 2001:250:5889:2100:0:0:0:0/56
- 2001:250:5889:2200:0:0:0:0/56
- 2001:250:5889:2300:0:0:0:0/56
- 2001:250:5889:2400:0:0:0:0/56
- 2001:250:5889:2500:0:0:0:0/56
- 2001:250:5889:2600:0:0:0:0/56
- 2001:250:5889:2700:0:0:0:0/56
- 2001:250:5889:2800:0:0:0:0/56
- 2001:250:5889:2900:0:0:0:0/56
- 2001:250:5889:2a00:0:0:0:0/56
- 2001:250:5889:2b00:0:0:0:0/56
- 2001:250:5889:2c00:0:0:0:0/56
- 2001:250:5889:2d00:0:0:0:0/56
- 2001:250:5889:2e00:0:0:0:0/56
- 2001:250:5889:2f00:0:0:0:0/56
- 2001:250:5889:3000:0:0:0:0/56
- 2001:250:5889:3100:0:0:0:0/56
- 2001:250:5889:3200:0:0:0:0/56
- 2001:250:5889:3300:0:0:0:0/56
- 2001:250:5889:3400:0:0:0:0/56
- 2001:250:5889:3500:0:0:0:0/56
- 2001:250:5889:3600:0:0:0:0/56
- 2001:250:5889:3700:0:0:0:0/56
- 2001:250:5889:3800:0:0:0:0/56
- 2001:250:5889:3900:0:0:0:0/56
- 2001:250:5889:3a00:0:0:0:0/56
- 2001:250:5889:3b00:0:0:0:0/56
- 2001:250:5889:3c00:0:0:0:0/56
- 2001:250:5889:3d00:0:0:0:0/56
- 2001:250:5889:3e00:0:0:0:0/56
- 2001:250:5889:3f00:0:0:0:0/56
- 2001:250:5889:4000:0:0:0:0/56
- 2001:250:5889:4100:0:0:0:0/56
- 2001:250:5889:4200:0:0:0:0/56
- 2001:250:5889:4300:0:0:0:0/56
- 2001:250:5889:4400:0:0:0:0/56
- 2001:250:5889:4500:0:0:0:0/56
- 2001:250:5889:4600:0:0:0:0/56
- 2001:250:5889:4700:0:0:0:0/56
- 2001:250:5889:4800:0:0:0:0/56
- 2001:250:5889:4900:0:0:0:0/56
- 2001:250:5889:4a00:0:0:0:0/56
- 2001:250:5889:4b00:0:0:0:0/56
- 2001:250:5889:4c00:0:0:0:0/56
- 2001:250:5889:4d00:0:0:0:0/56
- 2001:250:5889:4e00:0:0:0:0/56
- 2001:250:5889:4f00:0:0:0:0/56
- 2001:250:5889:5000:0:0:0:0/56
- 2001:250:5889:5100:0:0:0:0/56
- 2001:250:5889:5200:0:0:0:0/56
- 2001:250:5889:5300:0:0:0:0/56
- 2001:250:5889:5400:0:0:0:0/56
- 2001:250:5889:5500:0:0:0:0/56
- 2001:250:5889:5600:0:0:0:0/56
- 2001:250:5889:5700:0:0:0:0/56
- 2001:250:5889:5800:0:0:0:0/56
- 2001:250:5889:5900:0:0:0:0/56
- 2001:250:5889:5a00:0:0:0:0/56
- 2001:250:5889:5b00:0:0:0:0/56
- 2001:250:5889:5c00:0:0:0:0/56
- 2001:250:5889:5d00:0:0:0:0/56
- 2001:250:5889:5e00:0:0:0:0/56
- 2001:250:5889:5f00:0:0:0:0/56
- 2001:250:5889:6000:0:0:0:0/56
- 2001:250:5889:6100:0:0:0:0/56
- 2001:250:5889:6200:0:0:0:0/56
- 2001:250:5889:6300:0:0:0:0/56
- 2001:250:5889:6400:0:0:0:0/56
- 2001:250:5889:6500:0:0:0:0/56
- 2001:250:5889:6600:0:0:0:0/56
- 2001:250:5889:6700:0:0:0:0/56
- 2001:250:5889:6800:0:0:0:0/56
- 2001:250:5889:6900:0:0:0:0/56
- 2001:250:5889:6a00:0:0:0:0/56
- 2001:250:5889:6b00:0:0:0:0/56
- 2001:250:5889:6c00:0:0:0:0/56
- 2001:250:5889:6d00:0:0:0:0/56
- 2001:250:5889:6e00:0:0:0:0/56
- 2001:250:5889:6f00:0:0:0:0/56
- 2001:250:5889:7000:0:0:0:0/56
- 2001:250:5889:7100:0:0:0:0/56
- 2001:250:5889:7200:0:0:0:0/56
- 2001:250:5889:7300:0:0:0:0/56
- 2001:250:5889:7400:0:0:0:0/56
- 2001:250:5889:7500:0:0:0:0/56
- 2001:250:5889:7600:0:0:0:0/56
- 2001:250:5889:7700:0:0:0:0/56
- 2001:250:5889:7800:0:0:0:0/56
- 2001:250:5889:7900:0:0:0:0/56
- 2001:250:5889:7a00:0:0:0:0/56
- 2001:250:5889:7b00:0:0:0:0/56
- 2001:250:5889:7c00:0:0:0:0/56
- 2001:250:5889:7d00:0:0:0:0/56
- 2001:250:5889:7e00:0:0:0:0/56
- 2001:250:5889:7f00:0:0:0:0/56
- 2001:250:5889:8000:0:0:0:0/56
- 2001:250:5889:8100:0:0:0:0/56
- 2001:250:5889:8200:0:0:0:0/56
- 2001:250:5889:8300:0:0:0:0/56
- 2001:250:5889:8400:0:0:0:0/56
- 2001:250:5889:8500:0:0:0:0/56
- 2001:250:5889:8600:0:0:0:0/56
- 2001:250:5889:8700:0:0:0:0/56
- 2001:250:5889:8800:0:0:0:0/56
- 2001:250:5889:8900:0:0:0:0/56
- 2001:250:5889:8a00:0:0:0:0/56
- 2001:250:5889:8b00:0:0:0:0/56
- 2001:250:5889:8c00:0:0:0:0/56
- 2001:250:5889:8d00:0:0:0:0/56
- 2001:250:5889:8e00:0:0:0:0/56
- 2001:250:5889:8f00:0:0:0:0/56
- 2001:250:5889:9000:0:0:0:0/56
- 2001:250:5889:9100:0:0:0:0/56
- 2001:250:5889:9200:0:0:0:0/56
- 2001:250:5889:9300:0:0:0:0/56
- 2001:250:5889:9400:0:0:0:0/56
- 2001:250:5889:9500:0:0:0:0/56
- 2001:250:5889:9600:0:0:0:0/56
- 2001:250:5889:9700:0:0:0:0/56
- 2001:250:5889:9800:0:0:0:0/56
- 2001:250:5889:9900:0:0:0:0/56
- 2001:250:5889:9a00:0:0:0:0/56
- 2001:250:5889:9b00:0:0:0:0/56
- 2001:250:5889:9c00:0:0:0:0/56
- 2001:250:5889:9d00:0:0:0:0/56
- 2001:250:5889:9e00:0:0:0:0/56
- 2001:250:5889:9f00:0:0:0:0/56
- 2001:250:5889:a000:0:0:0:0/56
- 2001:250:5889:a100:0:0:0:0/56
- 2001:250:5889:a200:0:0:0:0/56
- 2001:250:5889:a300:0:0:0:0/56
- 2001:250:5889:a400:0:0:0:0/56
- 2001:250:5889:a500:0:0:0:0/56
- 2001:250:5889:a600:0:0:0:0/56
- 2001:250:5889:a700:0:0:0:0/56
- 2001:250:5889:a800:0:0:0:0/56
- 2001:250:5889:a900:0:0:0:0/56
- 2001:250:5889:aa00:0:0:0:0/56
- 2001:250:5889:ab00:0:0:0:0/56
- 2001:250:5889:ac00:0:0:0:0/56
- 2001:250:5889:ad00:0:0:0:0/56
- 2001:250:5889:ae00:0:0:0:0/56
- 2001:250:5889:af00:0:0:0:0/56
- 2001:250:5889:b000:0:0:0:0/56
- 2001:250:5889:b100:0:0:0:0/56
- 2001:250:5889:b200:0:0:0:0/56
- 2001:250:5889:b300:0:0:0:0/56
- 2001:250:5889:b400:0:0:0:0/56
- 2001:250:5889:b500:0:0:0:0/56
- 2001:250:5889:b600:0:0:0:0/56
- 2001:250:5889:b700:0:0:0:0/56
- 2001:250:5889:b800:0:0:0:0/56
- 2001:250:5889:b900:0:0:0:0/56
- 2001:250:5889:ba00:0:0:0:0/56
- 2001:250:5889:bb00:0:0:0:0/56
- 2001:250:5889:bc00:0:0:0:0/56
- 2001:250:5889:bd00:0:0:0:0/56
- 2001:250:5889:be00:0:0:0:0/56
- 2001:250:5889:bf00:0:0:0:0/56
- 2001:250:5889:c000:0:0:0:0/56
- 2001:250:5889:c100:0:0:0:0/56
- 2001:250:5889:c200:0:0:0:0/56
- 2001:250:5889:c300:0:0:0:0/56
- 2001:250:5889:c400:0:0:0:0/56
- 2001:250:5889:c500:0:0:0:0/56
- 2001:250:5889:c600:0:0:0:0/56
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- 2001:250:5889:c900:0:0:0:0/56
- 2001:250:5889:ca00:0:0:0:0/56
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- 2001:250:5889:cd00:0:0:0:0/56
- 2001:250:5889:ce00:0:0:0:0/56
- 2001:250:5889:cf00:0:0:0:0/56
- 2001:250:5889:d000:0:0:0:0/56
- 2001:250:5889:d100:0:0:0:0/56
- 2001:250:5889:d200:0:0:0:0/56
- 2001:250:5889:d300:0:0:0:0/56
- 2001:250:5889:d400:0:0:0:0/56
- 2001:250:5889:d500:0:0:0:0/56
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- 2001:250:5889:d900:0:0:0:0/56
- 2001:250:5889:da00:0:0:0:0/56
- 2001:250:5889:db00:0:0:0:0/56
- 2001:250:5889:dc00:0:0:0:0/56
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- 2001:250:5889:e100:0:0:0:0/56
- 2001:250:5889:e200:0:0:0:0/56
- 2001:250:5889:e300:0:0:0:0/56
- 2001:250:5889:e400:0:0:0:0/56
- 2001:250:5889:e500:0:0:0:0/56
- 2001:250:5889:e600:0:0:0:0/56
- 2001:250:5889:e700:0:0:0:0/56
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- 2001:250:5889:e900:0:0:0:0/56
- 2001:250:5889:ea00:0:0:0:0/56
- 2001:250:5889:eb00:0:0:0:0/56
- 2001:250:5889:ec00:0:0:0:0/56
- 2001:250:5889:ed00:0:0:0:0/56
- 2001:250:5889:ee00:0:0:0:0/56
- 2001:250:5889:ef00:0:0:0:0/56
- 2001:250:5889:f000:0:0:0:0/56
- 2001:250:5889:f100:0:0:0:0/56
- 2001:250:5889:f200:0:0:0:0/56
- 2001:250:5889:f300:0:0:0:0/56
- 2001:250:5889:f400:0:0:0:0/56
- 2001:250:5889:f500:0:0:0:0/56
- 2001:250:5889:f600:0:0:0:0/56
- 2001:250:5889:f700:0:0:0:0/56
- 2001:250:5889:f800:0:0:0:0/56
- 2001:250:5889:f900:0:0:0:0/56
- 2001:250:5889:fa00:0:0:0:0/56
- 2001:250:5889:fb00:0:0:0:0/56
- 2001:250:5889:fc00:0:0:0:0/56
- 2001:250:5889:fd00:0:0:0:0/56
- 2001:250:5889:fe00:0:0:0:0/56
- 2001:250:5889:ff00:0:0:0:0/56
