202.100.177.0/24

inetnum:        202.100.160.0 - 202.100.191.255
netname:        CHINANET-XJ
descr:          CHINANET Xingjiang province network
descr:          Data Communication Division
descr:          China Telecom
country:        CN
admin-c:        CH93-AP
tech-c:         NA15-AP
mnt-by:         APNIC-HM
status:         ALLOCATED PORTABLE
last-modified:  2015-08-26T00:33:04Z
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:         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

person:         NIBIJIANG ABDUKADIR
address:        XINJIANG DATA COMMUNICATION BUREAU
address:        HUANG HE ROAD 30# URUMQI CITY ,XINJIANG
country:        CN
phone:          +86 991 5820832
fax-no:         +86 991 5820831
e-mail:         luojie3.xj@chinatelecom.cn
nic-hdl:        NA15-AP
mnt-by:         MAINT-CN-CHINANET-XJ
last-modified:  2020-07-24T07:51:21Z
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.