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 2001:250:6012::/48 subnet
- 2001:250:6012:0:0:0:0:0/56
- 2001:250:6012:100:0:0:0:0/56
- 2001:250:6012:200:0:0:0:0/56
- 2001:250:6012:300:0:0:0:0/56
- 2001:250:6012:400:0:0:0:0/56
- 2001:250:6012:500:0:0:0:0/56
- 2001:250:6012:600:0:0:0:0/56
- 2001:250:6012:700:0:0:0:0/56
- 2001:250:6012:800:0:0:0:0/56
- 2001:250:6012:900:0:0:0:0/56
- 2001:250:6012:a00:0:0:0:0/56
- 2001:250:6012:b00:0:0:0:0/56
- 2001:250:6012:c00:0:0:0:0/56
- 2001:250:6012:d00:0:0:0:0/56
- 2001:250:6012:e00:0:0:0:0/56
- 2001:250:6012:f00:0:0:0:0/56
- 2001:250:6012:1000:0:0:0:0/56
- 2001:250:6012:1100:0:0:0:0/56
- 2001:250:6012:1200:0:0:0:0/56
- 2001:250:6012:1300:0:0:0:0/56
- 2001:250:6012:1400:0:0:0:0/56
- 2001:250:6012:1500:0:0:0:0/56
- 2001:250:6012:1600:0:0:0:0/56
- 2001:250:6012:1700:0:0:0:0/56
- 2001:250:6012:1800:0:0:0:0/56
- 2001:250:6012:1900:0:0:0:0/56
- 2001:250:6012:1a00:0:0:0:0/56
- 2001:250:6012:1b00:0:0:0:0/56
- 2001:250:6012:1c00:0:0:0:0/56
- 2001:250:6012:1d00:0:0:0:0/56
- 2001:250:6012:1e00:0:0:0:0/56
- 2001:250:6012:1f00:0:0:0:0/56
- 2001:250:6012:2000:0:0:0:0/56
- 2001:250:6012:2100:0:0:0:0/56
- 2001:250:6012:2200:0:0:0:0/56
- 2001:250:6012:2300:0:0:0:0/56
- 2001:250:6012:2400:0:0:0:0/56
- 2001:250:6012:2500:0:0:0:0/56
- 2001:250:6012:2600:0:0:0:0/56
- 2001:250:6012:2700:0:0:0:0/56
- 2001:250:6012:2800:0:0:0:0/56
- 2001:250:6012:2900:0:0:0:0/56
- 2001:250:6012:2a00:0:0:0:0/56
- 2001:250:6012:2b00:0:0:0:0/56
- 2001:250:6012:2c00:0:0:0:0/56
- 2001:250:6012:2d00:0:0:0:0/56
- 2001:250:6012:2e00:0:0:0:0/56
- 2001:250:6012:2f00:0:0:0:0/56
- 2001:250:6012:3000:0:0:0:0/56
- 2001:250:6012:3100:0:0:0:0/56
- 2001:250:6012:3200:0:0:0:0/56
- 2001:250:6012:3300:0:0:0:0/56
- 2001:250:6012:3400:0:0:0:0/56
- 2001:250:6012:3500:0:0:0:0/56
- 2001:250:6012:3600:0:0:0:0/56
- 2001:250:6012:3700:0:0:0:0/56
- 2001:250:6012:3800:0:0:0:0/56
- 2001:250:6012:3900:0:0:0:0/56
- 2001:250:6012:3a00:0:0:0:0/56
- 2001:250:6012:3b00:0:0:0:0/56
- 2001:250:6012:3c00:0:0:0:0/56
- 2001:250:6012:3d00:0:0:0:0/56
- 2001:250:6012:3e00:0:0:0:0/56
- 2001:250:6012:3f00:0:0:0:0/56
- 2001:250:6012:4000:0:0:0:0/56
- 2001:250:6012:4100:0:0:0:0/56
- 2001:250:6012:4200:0:0:0:0/56
- 2001:250:6012:4300:0:0:0:0/56
- 2001:250:6012:4400:0:0:0:0/56
- 2001:250:6012:4500:0:0:0:0/56
- 2001:250:6012:4600:0:0:0:0/56
- 2001:250:6012:4700:0:0:0:0/56
- 2001:250:6012:4800:0:0:0:0/56
- 2001:250:6012:4900:0:0:0:0/56
- 2001:250:6012:4a00:0:0:0:0/56
- 2001:250:6012:4b00:0:0:0:0/56
- 2001:250:6012:4c00:0:0:0:0/56
- 2001:250:6012:4d00:0:0:0:0/56
- 2001:250:6012:4e00:0:0:0:0/56
- 2001:250:6012:4f00:0:0:0:0/56
- 2001:250:6012:5000:0:0:0:0/56
- 2001:250:6012:5100:0:0:0:0/56
- 2001:250:6012:5200:0:0:0:0/56
- 2001:250:6012:5300:0:0:0:0/56
- 2001:250:6012:5400:0:0:0:0/56
- 2001:250:6012:5500:0:0:0:0/56
- 2001:250:6012:5600:0:0:0:0/56
- 2001:250:6012:5700:0:0:0:0/56
- 2001:250:6012:5800:0:0:0:0/56
- 2001:250:6012:5900:0:0:0:0/56
- 2001:250:6012:5a00:0:0:0:0/56
- 2001:250:6012:5b00:0:0:0:0/56
- 2001:250:6012:5c00:0:0:0:0/56
- 2001:250:6012:5d00:0:0:0:0/56
- 2001:250:6012:5e00:0:0:0:0/56
- 2001:250:6012:5f00:0:0:0:0/56
- 2001:250:6012:6000:0:0:0:0/56
- 2001:250:6012:6100:0:0:0:0/56
- 2001:250:6012:6200:0:0:0:0/56
- 2001:250:6012:6300:0:0:0:0/56
- 2001:250:6012:6400:0:0:0:0/56
- 2001:250:6012:6500:0:0:0:0/56
- 2001:250:6012:6600:0:0:0:0/56
- 2001:250:6012:6700:0:0:0:0/56
- 2001:250:6012:6800:0:0:0:0/56
- 2001:250:6012:6900:0:0:0:0/56
- 2001:250:6012:6a00:0:0:0:0/56
- 2001:250:6012:6b00:0:0:0:0/56
- 2001:250:6012:6c00:0:0:0:0/56
- 2001:250:6012:6d00:0:0:0:0/56
- 2001:250:6012:6e00:0:0:0:0/56
- 2001:250:6012:6f00:0:0:0:0/56
- 2001:250:6012:7000:0:0:0:0/56
- 2001:250:6012:7100:0:0:0:0/56
- 2001:250:6012:7200:0:0:0:0/56
- 2001:250:6012:7300:0:0:0:0/56
- 2001:250:6012:7400:0:0:0:0/56
- 2001:250:6012:7500:0:0:0:0/56
- 2001:250:6012:7600:0:0:0:0/56
- 2001:250:6012:7700:0:0:0:0/56
- 2001:250:6012:7800:0:0:0:0/56
- 2001:250:6012:7900:0:0:0:0/56
- 2001:250:6012:7a00:0:0:0:0/56
- 2001:250:6012:7b00:0:0:0:0/56
- 2001:250:6012:7c00:0:0:0:0/56
- 2001:250:6012:7d00:0:0:0:0/56
- 2001:250:6012:7e00:0:0:0:0/56
- 2001:250:6012:7f00:0:0:0:0/56
- 2001:250:6012:8000:0:0:0:0/56
- 2001:250:6012:8100:0:0:0:0/56
- 2001:250:6012:8200:0:0:0:0/56
- 2001:250:6012:8300:0:0:0:0/56
- 2001:250:6012:8400:0:0:0:0/56
- 2001:250:6012:8500:0:0:0:0/56
- 2001:250:6012:8600:0:0:0:0/56
- 2001:250:6012:8700:0:0:0:0/56
- 2001:250:6012:8800:0:0:0:0/56
- 2001:250:6012:8900:0:0:0:0/56
- 2001:250:6012:8a00:0:0:0:0/56
- 2001:250:6012:8b00:0:0:0:0/56
- 2001:250:6012:8c00:0:0:0:0/56
- 2001:250:6012:8d00:0:0:0:0/56
- 2001:250:6012:8e00:0:0:0:0/56
- 2001:250:6012:8f00:0:0:0:0/56
- 2001:250:6012:9000:0:0:0:0/56
- 2001:250:6012:9100:0:0:0:0/56
- 2001:250:6012:9200:0:0:0:0/56
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- 2001:250:6012:9b00:0:0:0:0/56
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- 2001:250:6012:9f00:0:0:0:0/56
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- 2001:250:6012:a100:0:0:0:0/56
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- 2001:250:6012:a600:0:0:0:0/56
- 2001:250:6012:a700:0:0:0:0/56
- 2001:250:6012:a800:0:0:0:0/56
- 2001:250:6012:a900:0:0:0:0/56
- 2001:250:6012:aa00:0:0:0:0/56
- 2001:250:6012:ab00:0:0:0:0/56
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- 2001:250:6012:ad00:0:0:0:0/56
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- 2001:250:6012:b000:0:0:0:0/56
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- 2001:250:6012:b200:0:0:0:0/56
- 2001:250:6012:b300:0:0:0:0/56
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- 2001:250:6012:b500:0:0:0:0/56
- 2001:250:6012:b600:0:0:0:0/56
- 2001:250:6012:b700:0:0:0:0/56
- 2001:250:6012:b800:0:0:0:0/56
- 2001:250:6012:b900:0:0:0:0/56
- 2001:250:6012:ba00:0:0:0:0/56
- 2001:250:6012:bb00:0:0:0:0/56
- 2001:250:6012:bc00:0:0:0:0/56
- 2001:250:6012:bd00:0:0:0:0/56
- 2001:250:6012:be00:0:0:0:0/56
- 2001:250:6012:bf00:0:0:0:0/56
- 2001:250:6012:c000:0:0:0:0/56
- 2001:250:6012:c100:0:0:0:0/56
- 2001:250:6012:c200:0:0:0:0/56
- 2001:250:6012:c300:0:0:0:0/56
- 2001:250:6012:c400:0:0:0:0/56
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- 2001:250:6012:c900:0:0:0:0/56
- 2001:250:6012:ca00:0:0:0:0/56
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- 2001:250:6012:cf00:0:0:0:0/56
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- 2001:250:6012:d200:0:0:0:0/56
- 2001:250:6012:d300:0:0:0:0/56
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- 2001:250:6012:db00:0:0:0:0/56
- 2001:250:6012:dc00:0:0:0:0/56
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- 2001:250:6012:e100:0:0:0:0/56
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- 2001:250:6012:e300:0:0:0:0/56
- 2001:250:6012:e400:0:0:0:0/56
- 2001:250:6012:e500:0:0:0:0/56
- 2001:250:6012:e600:0:0:0:0/56
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- 2001:250:6012:e900:0:0:0:0/56
- 2001:250:6012:ea00:0:0:0:0/56
- 2001:250:6012:eb00:0:0:0:0/56
- 2001:250:6012:ec00:0:0:0:0/56
- 2001:250:6012:ed00:0:0:0:0/56
- 2001:250:6012:ee00:0:0:0:0/56
- 2001:250:6012:ef00:0:0:0:0/56
- 2001:250:6012:f000:0:0:0:0/56
- 2001:250:6012:f100:0:0:0:0/56
- 2001:250:6012:f200:0:0:0:0/56
- 2001:250:6012:f300:0:0:0:0/56
- 2001:250:6012:f400:0:0:0:0/56
- 2001:250:6012:f500:0:0:0:0/56
- 2001:250:6012:f600:0:0:0:0/56
- 2001:250:6012:f700:0:0:0:0/56
- 2001:250:6012:f800:0:0:0:0/56
- 2001:250:6012:f900:0:0:0:0/56
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- 2001:250:6012:fb00:0:0:0:0/56
- 2001:250:6012:fc00:0:0:0:0/56
- 2001:250:6012:fd00:0:0:0:0/56
- 2001:250:6012:fe00:0:0:0:0/56
- 2001:250:6012:ff00:0:0:0:0/56
