210.28.56.0/21

AS4538 China Education and Research Network Center

210.28.56.0/21 - ZJTC-CN

ZJTC-CN

Zhenjiang Teachers' College

AS4538 China Education and Research Network Center

China

apnic

Whois Details

inetnum:        210.28.56.0 - 210.28.63.255
netname:        ZJTC-CN
descr:          镇江师犴鸹范专科薛3够校
descr:          Zhenjiang Teachers' College
descr:          Zhenjiang, Jiangsu 212003, China
country:        CN
admin-c:        XL5-AP
tech-c:         BP4-AP
tech-c:         CER-AP
remarks:        origin AS4538
mnt-by:         MAINT-CERNET-AP
status:         ASSIGNED NON-PORTABLE
last-modified:  2008-09-04T06:49:29Z
source:         APNIC


person:         Bo Pan
address:        Physics Dept.
address:        Zhenjiang Teachers' College
address:        Zhenjiang, Jiangsu 212003, China
country:        CN
phone:          +86-511-442-3213
e-mail:         zjpb@public.zj.js.cn
nic-hdl:        BP4-AP
notify:         address-allocation-staff@net.edu.cn
mnt-by:         MAINT-NULL
last-modified:  2011-12-22T05:23:38Z
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:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
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

person:         Xiaobo Li
address:        Network Center
address:        Zhenjiang Teachers' College
address:        Zhenjiang, Jiangsu 212003, China
country:        CN
phone:          +86-511-442-3213
e-mail:         zjsz@public.zj.js.cn
nic-hdl:        XL5-AP
notify:         address-allocation-staff@net.edu.cn
mnt-by:         MAINT-NULL
last-modified:  2011-12-22T05:23:37Z
source:         APNIC

Details

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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