103.23.70.0/24

inetnum:        103.23.70.0 - 103.23.70.255
netname:        CSA-AU
descr:          Cash Services Australia Pty Ltd
descr:          PO BOX 62
country:        AU
org:            ORG-CSAP2-AP
admin-c:        CSAP1-AP
tech-c:         CSAP1-AP
abuse-c:        AC2274-AP
status:         ASSIGNED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-routes:     MAINT-CSA-AU
mnt-irt:        IRT-CSA-AU
last-modified:  2021-01-07T01:24:58Z
source:         APNIC


role:           CASH SERVICES AUSTRALIA PTY LTD - network administ
address:        PO BOX 62
country:        AU
phone:          +61294909900
e-mail:         info@cashservices.com.au
admin-c:        CSAP1-AP
tech-c:         CSAP1-AP
nic-hdl:        CSAP1-AP
mnt-by:         MAINT-CSA-AU
last-modified:  2010-02-23T00:29:33Z
source:         APNIC

irt:            IRT-CSA-AU
address:        PO BOX 62
address:        St Leonards NSW
address:        1590
e-mail:         au.dti.expl.systems@prosegur.com
abuse-mailbox:  au.dti.expl.systems@prosegur.com
admin-c:        CSAP1-AP
tech-c:         CSAP1-AP
auth:           # Filtered
remarks:        au.dti.expl.systems@prosegur.com
remarks:        au.dti.expl.systems@prosegur.com was validated on 2021-01-27
mnt-by:         MAINT-CSA-AU
last-modified:  2021-01-27T06:00:38Z
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.