120.71.144.0/20

inetnum:        120.68.0.0 - 120.71.255.255
netname:        CHINANET-XJ
descr:          CHINANET Xinjiang province network
descr:          Data Communication Division
descr:          China Telecom
country:        CN
admin-c:        CH93-AP
tech-c:         IC83-AP
remarks:        service provider
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-CHINANET
mnt-lower:      MAINT-CN-CHINANET-XINJIANG
mnt-routes:     MAINT-CHINANET
last-modified:  2016-05-04T00:12:13Z
source:         APNIC
mnt-irt:        IRT-CHINANET-CN


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

person:         IPMASTER CHINANET-GD
nic-hdl:        IC83-AP
e-mail:         gdnoc_HLWI@189.cn
address:        NO.18,RO. ZHONGSHANER,YUEXIU DISTRIC,GUANGZHOU
phone:          +86-20-87189274
fax-no:         +86-20-87189274
country:        CN
changed:        ipadm@189.cn 20110418
changed:        zhengzm@gsta.com 20140922
mnt-by:         MAINT-CHINANET-GD
remarks:        IPMASTER is not for spam complaint,please send spam complaint to abuse_gdnoc@189.cn
abuse-mailbox:  antispam_gdnoc@189.cn
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

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.