103.147.50.0/24

inetnum:        103.147.50.0 - 103.147.51.255
netname:        STSNET-ID
descr:          Sumber Teknologi Sejahtera
descr:          Internet Service Provider
descr:          Gedung Patra Jasa Office Lt 17
descr:          Jl Jend Gatot Subroto Kav 32-24
descr:          Kuningan Timur, Setiabudi, Jakarta Selatan 12950
admin-c:        MAYN1-AP
tech-c:         MAYN1-AP
country:        ID
mnt-by:         MNT-APJII-ID
mnt-irt:        IRT-STS-ID
mnt-routes:     MAINT-ID-STS
status:         ALLOCATED PORTABLE
last-modified:  2021-01-25T13:52:26Z
source:         APNIC


person:         Munir abdul yudo nurdin
address:        Patra Jasa Office Tower lt 17
address:        Jl Jend Gatot Subroto
address:        Jakarta 12950, Indonesia
country:        ID
phone:          +62-21-52900252
e-mail:         hostmaster@sts.net.id
nic-hdl:        MAYN1-AP
mnt-by:         MNT-APJII-ID
fax-no:         +62-21-52900252
last-modified:  2019-12-18T09:12:45Z
source:         APNIC

irt:            IRT-STS-ID
address:        PT Sumber Teknologi Sejahtera
address:        Gedung Patra Jasa Office Lt 17
address:        Jl Jend Gatot Subroto Kav 32-24
address:        Kuningan Timur, Setiabudi
address:        Jakarta Selatan 12950
e-mail:         hostmaster@sts.net.id
abuse-mailbox:  report@sts.net.id
admin-c:        MAYN1-AP
tech-c:         MAYN1-AP
auth:           # Filtered
mnt-by:         MAINT-ID-STS
last-modified:  2019-12-31T02:21:55Z
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.