195.182.232.0/21

inetnum:        195.182.232.0 - 195.182.239.255
netname:        MYNET
country:        IT
admin-c:        GZ3679-RIPE
tech-c:         GZ3679-RIPE
status:         ASSIGNED PA
mnt-by:         MNT-MNT
created:        2019-12-06T14:53:22Z
last-modified:  2019-12-06T14:53:22Z
source:         RIPE
abuse-email:    abuse@mynet.it
abuse-c:        AR49377-RIPE
abuse-org:      ORG-MTS25-RIPE

person:         Giovanni Zorzoni
address:        MYNET S.R.L.
address:        VIA CIRO MENOTTI 14
address:        46100 MANTOVA
address:        ITALY
phone:          +3904641990149
nic-hdl:        GZ3679-RIPE
mnt-by:         mnt-it-mynet-1
created:        2018-11-16T14:05:02Z
last-modified:  2019-06-24T10:42:43Z
source:         RIPE

route:          195.182.232.0/21
origin:         AS31263
mnt-by:         MNT-MNT
created:        2019-11-11T11:23:29Z
last-modified:  2019-11-11T11:23:29Z
source:         RIPE

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.