194.15.37.0/24

inetnum:        194.15.37.0 - 194.15.37.255
netname:        NWIMS-Communications
country:        GB
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED PA
mnt-by:         mnt-de-develapp-1
created:        2018-11-27T13:49:07Z
last-modified:  2019-04-05T11:27:07Z
source:         RIPE
mnt-domains:    NWIMS-001
mnt-routes:     NWIMS-001
mnt-routes:     VAIONI-MNTR
mnt-lower:      NWIMS-001
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

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.