AS133480 Intergrid Group Pty Ltd
2400:fa80:1::/48 - WOMBATSERVERS-SY3
inet6num: 2400:fa80:1::/48 netname: WOMBATSERVERS-SY3 descr: Wombat Servers Pty. Ltd. - Sydney Network country: AU language: EN admin-c: IA298-AP tech-c: IA298-AP status: ALLOCATED NON-PORTABLE mnt-by: MAINT-WOMBATSERVERS-AU mnt-lower: MAINT-WOMBATSERVERS-AU mnt-routes: MAINT-WOMBATSERVERS-AU mnt-irt: IRT-WOMBATSERVERS-AU last-modified: 2018-12-13T23:53:48Z 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.