183.128.0.0/11

inetnum:        183.128.0.0 - 183.159.255.255
netname:        CHINANET-ZJ
descr:          CHINANET Zhejiang province network
descr:          Data Communication Division
descr:          China Telecom
country:        CN
admin-c:        CH93-AP
tech-c:         CZ4-AP
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CHINANET-ZJ
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:        --------------------------------------------------------
last-modified:  2016-05-04T00:20:22Z
source:         APNIC
mnt-irt:        IRT-CHINANET-CN


role:           CHINANET ZHEJIANG
address:        No. 257 Qingjiang Road, Hangzhou, Zhejiang.310066
country:        CN
phone:          +86-571-86821752
fax-no:         +86-571-86988329
e-mail:         antispam@zjnoc.hz.zj.cn
remarks:        send spam reports to antispam@zjnoc.hz.zj.cn
remarks:        and abuse reports to antispam@zjnoc.hz.zj.cn
remarks:        Please include detailed information and times in UTC
admin-c:        CZ61-AP
tech-c:         CZ61-AP
nic-hdl:        CZ4-AP
mnt-by:         MAINT-CHINANET-ZJ
last-modified:  2019-03-27T01:09:38Z
source:         APNIC

person:         Chinanet Hostmaster
nic-hdl:        CH93-AP
e-mail:         anti-spam@ns.chinanet.cn.net
address:        No.31 ,jingrong street,beijing
address:        100032
phone:          +86-10-58501724
fax-no:         +86-10-58501724
country:        CN
changed:        dingsy@cndata.com 20070416
changed:        zhengzm@gsta.com 20140227
mnt-by:         MAINT-CHINANET
source:         APNIC

irt:            IRT-CHINANET-CN
address:        No.31 ,jingrong street,beijing
address:        100032
e-mail:         anti-spam@ns.chinanet.cn.net
abuse-mailbox:  anti-spam@ns.chinanet.cn.net
admin-c:        CH93-AP
tech-c:         CH93-AP
auth:           # Filtered
mnt-by:         MAINT-CHINANET
changed:        anti-spam@ns.chinanet.cn.net 20101115
source:         APNIC

We have details for more than 11 companies that use IP addresses within this IP range, including yealink.com, h3c.com, ctsec.com, citicbank.com, hangseng.com. To find out more about our company details data contact sales.

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.