103.196.244.0/24

inetnum:        103.196.244.0 - 103.196.247.255
netname:        PCB-VN
descr:          VietNam credit information joint stock company
descr:          Room 1303B, Vietcombank Tower, 198 Tran Quang Khai Str, Hoan Kiem Dist, HaNoi
admin-c:        TDH8-AP
tech-c:         PHH4-AP
country:        VN
mnt-by:         MAINT-VN-VNNIC
mnt-lower:      MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
mnt-routes:     MAINT-VN-VNNIC
status:         ALLOCATED PORTABLE
last-modified:  2015-09-30T02:26:57Z
source:         APNIC


person:         Thai Duy Hien
address:        PCB-VN
country:        VN
phone:          +84-24-39369558
e-mail:         tdhien@pcb.vn
nic-hdl:        TDH8-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2018-01-05T04:23:20Z
source:         APNIC

irt:            IRT-VNNIC-AP
address:        Ha Noi, VietNam
phone:          +84-24-35564944
fax-no:         +84-24-37821462
e-mail:         hm-changed@vnnic.vn
abuse-mailbox:  hm-changed@vnnic.vn
admin-c:        NTTT1-AP
tech-c:         NTTT1-AP
auth:           # Filtered
mnt-by:         MAINT-VN-VNNIC
last-modified:  2017-11-08T09:40:06Z
source:         APNIC

person:         Phan Huy Hoang
address:        PCB-VN
country:        VN
phone:          +84-24-39369558
e-mail:         hoangph@pcb.vn
nic-hdl:        PHH4-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2018-01-05T04:23:39Z
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.